diff options
Diffstat (limited to 'drivers/gles2/shaders')
| -rw-r--r-- | drivers/gles2/shaders/SCsub | 7 | ||||
| -rw-r--r-- | drivers/gles2/shaders/canvas.glsl | 478 | ||||
| -rw-r--r-- | drivers/gles2/shaders/canvas_shadow.glsl | 50 | ||||
| -rw-r--r-- | drivers/gles2/shaders/copy.glsl | 72 | ||||
| -rw-r--r-- | drivers/gles2/shaders/cube_to_dp.glsl | 7 | ||||
| -rw-r--r-- | drivers/gles2/shaders/cubemap_filter.glsl | 65 | ||||
| -rw-r--r-- | drivers/gles2/shaders/effect_blur.glsl | 243 | ||||
| -rw-r--r-- | drivers/gles2/shaders/lens_distorted.glsl | 85 | ||||
| -rw-r--r-- | drivers/gles2/shaders/scene.glsl | 1215 | ||||
| -rw-r--r-- | drivers/gles2/shaders/stdlib.glsl | 383 | ||||
| -rw-r--r-- | drivers/gles2/shaders/tonemap.glsl | 296 |
11 files changed, 2373 insertions, 528 deletions
diff --git a/drivers/gles2/shaders/SCsub b/drivers/gles2/shaders/SCsub index acb93fff8f..d7ae0243e6 100644 --- a/drivers/gles2/shaders/SCsub +++ b/drivers/gles2/shaders/SCsub @@ -6,17 +6,18 @@ if 'GLES2_GLSL' in env['BUILDERS']: env.GLES2_GLSL('copy.glsl'); # env.GLES2_GLSL('resolve.glsl'); env.GLES2_GLSL('canvas.glsl'); -# env.GLES2_GLSL('canvas_shadow.glsl'); + env.GLES2_GLSL('canvas_shadow.glsl'); env.GLES2_GLSL('scene.glsl'); env.GLES2_GLSL('cubemap_filter.glsl'); env.GLES2_GLSL('cube_to_dp.glsl'); # env.GLES2_GLSL('blend_shape.glsl'); # env.GLES2_GLSL('screen_space_reflection.glsl'); -# env.GLES2_GLSL('effect_blur.glsl'); + env.GLES2_GLSL('effect_blur.glsl'); # env.GLES2_GLSL('subsurf_scattering.glsl'); # env.GLES2_GLSL('ssao.glsl'); # env.GLES2_GLSL('ssao_minify.glsl'); # env.GLES2_GLSL('ssao_blur.glsl'); # env.GLES2_GLSL('exposure.glsl'); -# env.GLES2_GLSL('tonemap.glsl'); + env.GLES2_GLSL('tonemap.glsl'); # env.GLES2_GLSL('particles.glsl'); + env.GLES2_GLSL('lens_distorted.glsl'); diff --git a/drivers/gles2/shaders/canvas.glsl b/drivers/gles2/shaders/canvas.glsl index ba69ca9b6e..08548ded17 100644 --- a/drivers/gles2/shaders/canvas.glsl +++ b/drivers/gles2/shaders/canvas.glsl @@ -2,21 +2,50 @@ [vertex] #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else -precision mediump float; -precision mediump int; +precision highp float; +precision highp int; #endif uniform highp mat4 projection_matrix; /* clang-format on */ + +#include "stdlib.glsl" + uniform highp mat4 modelview_matrix; uniform highp mat4 extra_matrix; attribute highp vec2 vertex; // attrib:0 attribute vec4 color_attrib; // attrib:3 attribute vec2 uv_attrib; // attrib:4 +#ifdef USE_SKELETON +attribute highp vec4 bone_indices; // attrib:6 +attribute highp vec4 bone_weights; // attrib:7 +#endif + +#ifdef USE_INSTANCING + +attribute highp vec4 instance_xform0; //attrib:8 +attribute highp vec4 instance_xform1; //attrib:9 +attribute highp vec4 instance_xform2; //attrib:10 +attribute highp vec4 instance_color; //attrib:11 + +#ifdef USE_INSTANCE_CUSTOM +attribute highp vec4 instance_custom_data; //attrib:12 +#endif + +#endif + +#ifdef USE_SKELETON +uniform highp sampler2D skeleton_texture; // texunit:-3 +uniform highp ivec2 skeleton_texture_size; +uniform highp mat4 skeleton_transform; +uniform highp mat4 skeleton_transform_inverse; +#endif + varying vec2 uv_interp; varying vec4 color_interp; @@ -31,6 +60,35 @@ uniform vec4 src_rect; uniform highp float time; +#ifdef USE_LIGHTING + +// light matrices +uniform highp mat4 light_matrix; +uniform highp mat4 light_matrix_inverse; +uniform highp mat4 light_local_matrix; +uniform highp mat4 shadow_matrix; +uniform highp vec4 light_color; +uniform highp vec4 light_shadow_color; +uniform highp vec2 light_pos; +uniform highp float shadowpixel_size; +uniform highp float shadow_gradient; +uniform highp float light_height; +uniform highp float light_outside_alpha; +uniform highp float shadow_distance_mult; + +varying vec4 light_uv_interp; +varying vec2 transformed_light_uv; +varying vec4 local_rot; + +#ifdef USE_SHADOWS +varying highp vec2 pos; +#endif + +const bool at_light_pass = true; +#else +const bool at_light_pass = false; +#endif + /* clang-format off */ VERTEX_SHADER_GLOBALS @@ -49,13 +107,29 @@ vec2 select(vec2 a, vec2 b, bvec2 c) { void main() { vec4 color = color_attrib; + vec2 uv; + +#ifdef USE_INSTANCING + mat4 extra_matrix_instance = extra_matrix * transpose(mat4(instance_xform0, instance_xform1, instance_xform2, vec4(0.0, 0.0, 0.0, 1.0))); + color *= instance_color; + +#ifdef USE_INSTANCE_CUSTOM + vec4 instance_custom = instance_custom_data; +#else + vec4 instance_custom = vec4(0.0); +#endif + +#else + mat4 extra_matrix_instance = extra_matrix; + vec4 instance_custom = vec4(0.0); +#endif #ifdef USE_TEXTURE_RECT if (dst_rect.z < 0.0) { // Transpose is encoded as negative dst_rect.z - uv_interp = src_rect.xy + abs(src_rect.zw) * vertex.yx; + uv = src_rect.xy + abs(src_rect.zw) * vertex.yx; } else { - uv_interp = src_rect.xy + abs(src_rect.zw) * vertex; + uv = src_rect.xy + abs(src_rect.zw) * vertex; } vec4 outvec = vec4(0.0, 0.0, 0.0, 1.0); @@ -72,12 +146,7 @@ void main() { #else vec4 outvec = vec4(vertex.xy, 0.0, 1.0); -#ifdef USE_UV_ATTRIBUTE - uv_interp = uv_attrib; -#else - uv_interp = vertex.xy; -#endif - + uv = uv_attrib; #endif { @@ -89,21 +158,107 @@ VERTEX_SHADER_CODE /* clang-format on */ } +#if !defined(SKIP_TRANSFORM_USED) + outvec = extra_matrix_instance * outvec; + outvec = modelview_matrix * outvec; +#endif + color_interp = color; - gl_Position = projection_matrix * modelview_matrix * outvec; +#ifdef USE_PIXEL_SNAP + outvec.xy = floor(outvec + 0.5).xy; + // precision issue on some hardware creates artifacts within texture + // offset uv by a small amount to avoid + uv += 1e-5; +#endif + +#ifdef USE_SKELETON + + // look up transform from the "pose texture" + if (bone_weights != vec4(0.0)) { + + highp mat4 bone_transform = mat4(0.0); + + for (int i = 0; i < 4; i++) { + ivec2 tex_ofs = ivec2(int(bone_indices[i]) * 2, 0); + + highp mat4 b = mat4( + texel2DFetch(skeleton_texture, skeleton_texture_size, tex_ofs + ivec2(0, 0)), + texel2DFetch(skeleton_texture, skeleton_texture_size, tex_ofs + ivec2(1, 0)), + vec4(0.0, 0.0, 1.0, 0.0), + vec4(0.0, 0.0, 0.0, 1.0)); + + bone_transform += b * bone_weights[i]; + } + + mat4 bone_matrix = skeleton_transform * transpose(bone_transform) * skeleton_transform_inverse; + + outvec = bone_matrix * outvec; + } + +#endif + + uv_interp = uv; + gl_Position = projection_matrix * outvec; + +#ifdef USE_LIGHTING + + light_uv_interp.xy = (light_matrix * outvec).xy; + light_uv_interp.zw = (light_local_matrix * outvec).xy; + + transformed_light_uv = (mat3(light_matrix_inverse) * vec3(light_uv_interp.zw, 0.0)).xy; //for normal mapping + +#ifdef USE_SHADOWS + pos = outvec.xy; +#endif + + local_rot.xy = normalize((modelview_matrix * (extra_matrix_instance * vec4(1.0, 0.0, 0.0, 0.0))).xy); + local_rot.zw = normalize((modelview_matrix * (extra_matrix_instance * vec4(0.0, 1.0, 0.0, 0.0))).xy); +#ifdef USE_TEXTURE_RECT + local_rot.xy *= sign(src_rect.z); + local_rot.zw *= sign(src_rect.w); +#endif + +#endif } /* clang-format off */ [fragment] +// texture2DLodEXT and textureCubeLodEXT are fragment shader specific. +// Do not copy these defines in the vertex section. +#ifndef USE_GLES_OVER_GL +#ifdef GL_EXT_shader_texture_lod +#extension GL_EXT_shader_texture_lod : enable +#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod) +#endif +#endif // !USE_GLES_OVER_GL + +#ifdef GL_ARB_shader_texture_lod +#extension GL_ARB_shader_texture_lod : enable +#endif + +#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod) +#define texture2DLod(img, coord, lod) texture2D(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCube(img, coord, lod) +#endif + #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else +#if defined(USE_HIGHP_PRECISION) +precision highp float; +precision highp int; +#else precision mediump float; precision mediump int; #endif +#endif + +#include "stdlib.glsl" uniform sampler2D color_texture; // texunit:-1 /* clang-format on */ @@ -119,7 +274,7 @@ uniform vec4 final_modulate; #ifdef SCREEN_TEXTURE_USED -uniform sampler2D screen_texture; // texunit:-3 +uniform sampler2D screen_texture; // texunit:-4 #endif @@ -129,30 +284,325 @@ uniform vec2 screen_pixel_size; #endif +#ifdef USE_LIGHTING + +uniform highp mat4 light_matrix; +uniform highp mat4 light_local_matrix; +uniform highp mat4 shadow_matrix; +uniform highp vec4 light_color; +uniform highp vec4 light_shadow_color; +uniform highp vec2 light_pos; +uniform highp float shadowpixel_size; +uniform highp float shadow_gradient; +uniform highp float light_height; +uniform highp float light_outside_alpha; +uniform highp float shadow_distance_mult; + +uniform lowp sampler2D light_texture; // texunit:-4 +varying vec4 light_uv_interp; +varying vec2 transformed_light_uv; + +varying vec4 local_rot; + +#ifdef USE_SHADOWS + +uniform highp sampler2D shadow_texture; // texunit:-5 +varying highp vec2 pos; + +#endif + +const bool at_light_pass = true; +#else +const bool at_light_pass = false; +#endif + +uniform bool use_default_normal; + /* clang-format off */ FRAGMENT_SHADER_GLOBALS /* clang-format on */ +void light_compute( + inout vec4 light, + inout vec2 light_vec, + inout float light_height, + inout vec4 light_color, + vec2 light_uv, + inout vec4 shadow_color, + inout vec2 shadow_vec, + vec3 normal, + vec2 uv, +#if defined(SCREEN_UV_USED) + vec2 screen_uv, +#endif + vec4 color) { + +#if defined(USE_LIGHT_SHADER_CODE) + + /* clang-format off */ + +LIGHT_SHADER_CODE + + /* clang-format on */ + +#endif +} + void main() { vec4 color = color_interp; + vec2 uv = uv_interp; +#ifdef USE_FORCE_REPEAT + //needs to use this to workaround GLES2/WebGL1 forcing tiling that textures that don't support it + uv = mod(uv, vec2(1.0, 1.0)); +#endif - color *= texture2D(color_texture, uv_interp); +#if !defined(COLOR_USED) + //default behavior, texture by color + color *= texture2D(color_texture, uv); +#endif #ifdef SCREEN_UV_USED vec2 screen_uv = gl_FragCoord.xy * screen_pixel_size; #endif + + vec3 normal; + +#if defined(NORMAL_USED) + + bool normal_used = true; +#else + bool normal_used = false; +#endif + + if (use_default_normal) { + normal.xy = texture2D(normal_texture, uv).xy * 2.0 - 1.0; + normal.z = sqrt(1.0 - dot(normal.xy, normal.xy)); + normal_used = true; + } else { + normal = vec3(0.0, 0.0, 1.0); + } + { + float normal_depth = 1.0; + +#if defined(NORMALMAP_USED) + vec3 normal_map = vec3(0.0, 0.0, 1.0); + normal_used = true; +#endif + /* clang-format off */ FRAGMENT_SHADER_CODE /* clang-format on */ - } +#if defined(NORMALMAP_USED) + normal = mix(vec3(0.0, 0.0, 1.0), normal_map * vec3(2.0, -2.0, 1.0) - vec3(1.0, -1.0, 0.0), normal_depth); +#endif + } color *= final_modulate; +#ifdef USE_LIGHTING + + vec2 light_vec = transformed_light_uv; + vec2 shadow_vec = transformed_light_uv; + + if (normal_used) { + normal.xy = mat2(local_rot.xy, local_rot.zw) * normal.xy; + } + + float att = 1.0; + + vec2 light_uv = light_uv_interp.xy; + vec4 light = texture2D(light_texture, light_uv); + + if (any(lessThan(light_uv_interp.xy, vec2(0.0, 0.0))) || any(greaterThanEqual(light_uv_interp.xy, vec2(1.0, 1.0)))) { + color.a *= light_outside_alpha; //invisible + + } else { + float real_light_height = light_height; + vec4 real_light_color = light_color; + vec4 real_light_shadow_color = light_shadow_color; + +#if defined(USE_LIGHT_SHADER_CODE) + //light is written by the light shader + light_compute( + light, + light_vec, + real_light_height, + real_light_color, + light_uv, + real_light_shadow_color, + shadow_vec, + normal, + uv, +#if defined(SCREEN_UV_USED) + screen_uv, +#endif + color); +#endif + + light *= real_light_color; + + if (normal_used) { + vec3 light_normal = normalize(vec3(light_vec, -real_light_height)); + light *= max(dot(-light_normal, normal), 0.0); + } + + color *= light; + +#ifdef USE_SHADOWS + +#ifdef SHADOW_VEC_USED + mat3 inverse_light_matrix = mat3(light_matrix); + inverse_light_matrix[0] = normalize(inverse_light_matrix[0]); + inverse_light_matrix[1] = normalize(inverse_light_matrix[1]); + inverse_light_matrix[2] = normalize(inverse_light_matrix[2]); + shadow_vec = (inverse_light_matrix * vec3(shadow_vec, 0.0)).xy; +#else + shadow_vec = light_uv_interp.zw; +#endif + + float angle_to_light = -atan(shadow_vec.x, shadow_vec.y); + float PI = 3.14159265358979323846264; + /*int i = int(mod(floor((angle_to_light+7.0*PI/6.0)/(4.0*PI/6.0))+1.0, 3.0)); // +1 pq os indices estao em ordem 2,0,1 nos arrays + float ang*/ + + float su, sz; + + float abs_angle = abs(angle_to_light); + vec2 point; + float sh; + if (abs_angle < 45.0 * PI / 180.0) { + point = shadow_vec; + sh = 0.0 + (1.0 / 8.0); + } else if (abs_angle > 135.0 * PI / 180.0) { + point = -shadow_vec; + sh = 0.5 + (1.0 / 8.0); + } else if (angle_to_light > 0.0) { + + point = vec2(shadow_vec.y, -shadow_vec.x); + sh = 0.25 + (1.0 / 8.0); + } else { + + point = vec2(-shadow_vec.y, shadow_vec.x); + sh = 0.75 + (1.0 / 8.0); + } + + highp vec4 s = shadow_matrix * vec4(point, 0.0, 1.0); + s.xyz /= s.w; + su = s.x * 0.5 + 0.5; + sz = s.z * 0.5 + 0.5; + //sz=lightlength(light_vec); + + highp float shadow_attenuation = 0.0; + +#ifdef USE_RGBA_SHADOWS +#define SHADOW_DEPTH(m_tex, m_uv) dot(texture2D((m_tex), (m_uv)), vec4(1.0 / (255.0 * 255.0 * 255.0), 1.0 / (255.0 * 255.0), 1.0 / 255.0, 1.0)) + +#else + +#define SHADOW_DEPTH(m_tex, m_uv) (texture2D((m_tex), (m_uv)).r) + +#endif + +#ifdef SHADOW_USE_GRADIENT + + /* clang-format off */ + /* GLSL es 100 doesn't support line continuation characters(backslashes) */ +#define SHADOW_TEST(m_ofs) { highp float sd = SHADOW_DEPTH(shadow_texture, vec2(m_ofs, sh)); shadow_attenuation += 1.0 - smoothstep(sd, sd + shadow_gradient, sz); } + +#else + +#define SHADOW_TEST(m_ofs) { highp float sd = SHADOW_DEPTH(shadow_texture, vec2(m_ofs, sh)); shadow_attenuation += step(sz, sd); } + /* clang-format on */ + +#endif + +#ifdef SHADOW_FILTER_NEAREST + + SHADOW_TEST(su); + +#endif + +#ifdef SHADOW_FILTER_PCF3 + + SHADOW_TEST(su + shadowpixel_size); + SHADOW_TEST(su); + SHADOW_TEST(su - shadowpixel_size); + shadow_attenuation /= 3.0; + +#endif + +#ifdef SHADOW_FILTER_PCF5 + + SHADOW_TEST(su + shadowpixel_size * 2.0); + SHADOW_TEST(su + shadowpixel_size); + SHADOW_TEST(su); + SHADOW_TEST(su - shadowpixel_size); + SHADOW_TEST(su - shadowpixel_size * 2.0); + shadow_attenuation /= 5.0; + +#endif + +#ifdef SHADOW_FILTER_PCF7 + + SHADOW_TEST(su + shadowpixel_size * 3.0); + SHADOW_TEST(su + shadowpixel_size * 2.0); + SHADOW_TEST(su + shadowpixel_size); + SHADOW_TEST(su); + SHADOW_TEST(su - shadowpixel_size); + SHADOW_TEST(su - shadowpixel_size * 2.0); + SHADOW_TEST(su - shadowpixel_size * 3.0); + shadow_attenuation /= 7.0; + +#endif + +#ifdef SHADOW_FILTER_PCF9 + + SHADOW_TEST(su + shadowpixel_size * 4.0); + SHADOW_TEST(su + shadowpixel_size * 3.0); + SHADOW_TEST(su + shadowpixel_size * 2.0); + SHADOW_TEST(su + shadowpixel_size); + SHADOW_TEST(su); + SHADOW_TEST(su - shadowpixel_size); + SHADOW_TEST(su - shadowpixel_size * 2.0); + SHADOW_TEST(su - shadowpixel_size * 3.0); + SHADOW_TEST(su - shadowpixel_size * 4.0); + shadow_attenuation /= 9.0; + +#endif + +#ifdef SHADOW_FILTER_PCF13 + + SHADOW_TEST(su + shadowpixel_size * 6.0); + SHADOW_TEST(su + shadowpixel_size * 5.0); + SHADOW_TEST(su + shadowpixel_size * 4.0); + SHADOW_TEST(su + shadowpixel_size * 3.0); + SHADOW_TEST(su + shadowpixel_size * 2.0); + SHADOW_TEST(su + shadowpixel_size); + SHADOW_TEST(su); + SHADOW_TEST(su - shadowpixel_size); + SHADOW_TEST(su - shadowpixel_size * 2.0); + SHADOW_TEST(su - shadowpixel_size * 3.0); + SHADOW_TEST(su - shadowpixel_size * 4.0); + SHADOW_TEST(su - shadowpixel_size * 5.0); + SHADOW_TEST(su - shadowpixel_size * 6.0); + shadow_attenuation /= 13.0; + +#endif + + //color *= shadow_attenuation; + color = mix(real_light_shadow_color, color, shadow_attenuation); +//use shadows +#endif + } + +//use lighting +#endif + gl_FragColor = color; } diff --git a/drivers/gles2/shaders/canvas_shadow.glsl b/drivers/gles2/shaders/canvas_shadow.glsl index e3c8140e31..7a5ba4f571 100644 --- a/drivers/gles2/shaders/canvas_shadow.glsl +++ b/drivers/gles2/shaders/canvas_shadow.glsl @@ -1,15 +1,24 @@ /* clang-format off */ [vertex] +#ifdef USE_GLES_OVER_GL +#define lowp +#define mediump +#define highp +#else +precision highp float; +precision highp int; +#endif + +attribute highp vec3 vertex; // attrib:0 + uniform highp mat4 projection_matrix; /* clang-format on */ uniform highp mat4 light_matrix; uniform highp mat4 world_matrix; uniform highp float distance_norm; -layout(location = 0) in highp vec3 vertex; - -out highp vec4 position_interp; +varying highp vec4 position_interp; void main() { @@ -20,31 +29,34 @@ void main() { /* clang-format off */ [fragment] -in highp vec4 position_interp; -/* clang-format on */ - -#ifdef USE_RGBA_SHADOWS - -layout(location = 0) out lowp vec4 distance_buf; - +#ifdef USE_GLES_OVER_GL +#define lowp +#define mediump +#define highp #else - -layout(location = 0) out highp float distance_buf; - +#if defined(USE_HIGHP_PRECISION) +precision highp float; +precision highp int; +#else +precision mediump float; +precision mediump int; #endif +#endif + +varying highp vec4 position_interp; +/* clang-format on */ void main() { - highp float depth = ((position_interp.z / position_interp.w) + 1.0) * 0.5 + 0.0; //bias; + highp float depth = ((position_interp.z / position_interp.w) + 1.0) * 0.5 + 0.0; // bias #ifdef USE_RGBA_SHADOWS - highp vec4 comp = fract(depth * vec4(256.0 * 256.0 * 256.0, 256.0 * 256.0, 256.0, 1.0)); - comp -= comp.xxyz * vec4(0, 1.0 / 256.0, 1.0 / 256.0, 1.0 / 256.0); - distance_buf = comp; + highp vec4 comp = fract(depth * vec4(255.0 * 255.0 * 255.0, 255.0 * 255.0, 255.0, 1.0)); + comp -= comp.xxyz * vec4(0.0, 1.0 / 255.0, 1.0 / 255.0, 1.0 / 255.0); + gl_FragColor = comp; #else - distance_buf = depth; - + gl_FragColor = vec4(depth); #endif } diff --git a/drivers/gles2/shaders/copy.glsl b/drivers/gles2/shaders/copy.glsl index 16bbde196d..aa967115da 100644 --- a/drivers/gles2/shaders/copy.glsl +++ b/drivers/gles2/shaders/copy.glsl @@ -2,11 +2,12 @@ [vertex] #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else -precision mediump float; -precision mediump int; +precision highp float; +precision highp int; #endif attribute highp vec4 vertex_attrib; // attrib:0 @@ -27,14 +28,23 @@ varying vec2 uv_interp; #endif varying vec2 uv2_interp; +// These definitions are here because the shader-wrapper builder does +// not understand `#elif defined()` +#ifdef USE_DISPLAY_TRANSFORM +#endif + #ifdef USE_COPY_SECTION -uniform vec4 copy_section; +uniform highp vec4 copy_section; +#elif defined(USE_DISPLAY_TRANSFORM) +uniform highp mat4 display_transform; #endif void main() { #if defined(USE_CUBEMAP) || defined(USE_PANORAMA) cube_interp = cube_in; +#elif defined(USE_ASYM_PANO) + uv_interp = vertex_attrib.xy; #else uv_interp = uv_in; #endif @@ -45,6 +55,8 @@ void main() { #ifdef USE_COPY_SECTION uv_interp = copy_section.xy + uv_interp * copy_section.zw; gl_Position.xy = (copy_section.xy + (gl_Position.xy * 0.5 + 0.5) * copy_section.zw) * 2.0 - 1.0; +#elif defined(USE_DISPLAY_TRANSFORM) + uv_interp = (display_transform * vec4(uv_in, 1.0, 1.0)).xy; #endif } @@ -54,12 +66,18 @@ void main() { #define M_PI 3.14159265359 #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else +#if defined(USE_HIGHP_PRECISION) +precision highp float; +precision highp int; +#else precision mediump float; precision mediump int; #endif +#endif #if defined(USE_CUBEMAP) || defined(USE_PANORAMA) varying vec3 cube_interp; @@ -68,12 +86,21 @@ varying vec2 uv_interp; #endif /* clang-format on */ +#ifdef USE_ASYM_PANO +uniform highp mat4 pano_transform; +uniform highp vec4 asym_proj; +#endif + #ifdef USE_CUBEMAP uniform samplerCube source_cube; // texunit:0 #else uniform sampler2D source; // texunit:0 #endif +#ifdef SEP_CBCR_TEXTURE +uniform sampler2D CbCr; //texunit:1 +#endif + varying vec2 uv2_interp; #ifdef USE_MULTIPLIER @@ -85,6 +112,7 @@ uniform float custom_alpha; #endif #if defined(USE_PANORAMA) || defined(USE_ASYM_PANO) +uniform highp mat4 sky_transform; vec4 texturePanorama(sampler2D pano, vec3 normal) { @@ -106,14 +134,50 @@ void main() { #ifdef USE_PANORAMA - vec4 color = texturePanorama(source, normalize(cube_interp)); + vec3 cube_normal = normalize(cube_interp); + cube_normal.z = -cube_normal.z; + cube_normal = mat3(sky_transform) * cube_normal; + cube_normal.z = -cube_normal.z; + + vec4 color = texturePanorama(source, cube_normal); + +#elif defined(USE_ASYM_PANO) + + // When an asymmetrical projection matrix is used (applicable for stereoscopic rendering i.e. VR) we need to do this calculation per fragment to get a perspective correct result. + // Asymmetrical projection means the center of projection is no longer in the center of the screen but shifted. + // The Matrix[2][0] (= asym_proj.x) and Matrix[2][1] (= asym_proj.z) values are what provide the right shift in the image. + + vec3 cube_normal; + cube_normal.z = -1.0; + cube_normal.x = (cube_normal.z * (-uv_interp.x - asym_proj.x)) / asym_proj.y; + cube_normal.y = (cube_normal.z * (-uv_interp.y - asym_proj.z)) / asym_proj.a; + cube_normal = mat3(sky_transform) * mat3(pano_transform) * cube_normal; + cube_normal.z = -cube_normal.z; + + vec4 color = texturePanorama(source, normalize(cube_normal.xyz)); #elif defined(USE_CUBEMAP) vec4 color = textureCube(source_cube, normalize(cube_interp)); +#elif defined(SEP_CBCR_TEXTURE) + vec4 color; + color.r = texture2D(source, uv_interp).r; + color.gb = texture2D(CbCr, uv_interp).rg - vec2(0.5, 0.5); + color.a = 1.0; #else vec4 color = texture2D(source, uv_interp); #endif +#ifdef YCBCR_TO_RGB + // YCbCr -> RGB conversion + + // Using BT.601, which is the standard for SDTV is provided as a reference + color.rgb = mat3( + vec3(1.00000, 1.00000, 1.00000), + vec3(0.00000, -0.34413, 1.77200), + vec3(1.40200, -0.71414, 0.00000)) * + color.rgb; +#endif + #ifdef USE_NO_ALPHA color.a = 1.0; #endif diff --git a/drivers/gles2/shaders/cube_to_dp.glsl b/drivers/gles2/shaders/cube_to_dp.glsl index 3d24c36336..769908c3b4 100644 --- a/drivers/gles2/shaders/cube_to_dp.glsl +++ b/drivers/gles2/shaders/cube_to_dp.glsl @@ -2,6 +2,7 @@ [vertex] #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else @@ -25,12 +26,18 @@ void main() { [fragment] #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else +#if defined(USE_HIGHP_PRECISION) +precision highp float; +precision highp int; +#else precision mediump float; precision mediump int; #endif +#endif uniform highp samplerCube source_cube; //texunit:0 /* clang-format on */ diff --git a/drivers/gles2/shaders/cubemap_filter.glsl b/drivers/gles2/shaders/cubemap_filter.glsl index 2a1ad8d8f2..db3d8b3a1b 100644 --- a/drivers/gles2/shaders/cubemap_filter.glsl +++ b/drivers/gles2/shaders/cubemap_filter.glsl @@ -2,11 +2,12 @@ [vertex] #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else -precision mediump float; -precision mediump int; +precision highp float; +precision highp int; #endif attribute highp vec2 vertex; // attrib:0 @@ -24,21 +25,40 @@ void main() { /* clang-format off */ [fragment] +// texture2DLodEXT and textureCubeLodEXT are fragment shader specific. +// Do not copy these defines in the vertex section. +#ifndef USE_GLES_OVER_GL +#ifdef GL_EXT_shader_texture_lod +#extension GL_EXT_shader_texture_lod : enable +#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod) +#endif +#endif // !USE_GLES_OVER_GL + +#ifdef GL_ARB_shader_texture_lod #extension GL_ARB_shader_texture_lod : enable +#endif -#ifndef GL_ARB_shader_texture_lod -#define texture2DLod(img, coord, lod) texture2D(img, coord) -#define textureCubeLod(img, coord, lod) textureCube(img, coord) +#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod) +#define texture2DLod(img, coord, lod) texture2D(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCube(img, coord, lod) #endif #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else +#if defined(USE_HIGHP_PRECISION) +precision highp float; +precision highp int; +#else precision mediump float; precision mediump int; #endif +#endif + #ifdef USE_SOURCE_PANORAMA uniform sampler2D source_panorama; //texunit:0 #else @@ -116,7 +136,13 @@ vec3 texelCoordToVec(vec2 uv, int faceID) { faceUvVectors[5][2] = vec3(0.0, 0.0, 1.0); // +z face // out = u * s_faceUv[0] + v * s_faceUv[1] + s_faceUv[2]. - vec3 result = (faceUvVectors[faceID][0] * uv.x) + (faceUvVectors[faceID][1] * uv.y) + faceUvVectors[faceID][2]; + vec3 result; + for (int i = 0; i < 6; i++) { + if (i == faceID) { + result = (faceUvVectors[i][0] * uv.x) + (faceUvVectors[i][1] * uv.y) + faceUvVectors[i][2]; + break; + } + } return normalize(result); } @@ -159,6 +185,18 @@ void main() { vec2 uv = (uv_interp * 2.0) - 1.0; vec3 N = texelCoordToVec(uv, face_id); +#ifdef USE_DIRECT_WRITE + +#ifdef USE_SOURCE_PANORAMA + + gl_FragColor = vec4(texturePanorama(source_panorama, N).rgb, 1.0); +#else + + gl_FragColor = vec4(textureCube(source_cube, N).rgb, 1.0); +#endif //USE_SOURCE_PANORAMA + +#else + vec4 sum = vec4(0.0); for (int sample_num = 0; sample_num < SAMPLE_COUNT; sample_num++) { @@ -167,18 +205,21 @@ void main() { vec3 H = ImportanceSampleGGX(xi, roughness, N); vec3 V = N; - vec3 L = normalize(2.0 * dot(V, H) * H - V); + vec3 L = (2.0 * dot(V, H) * H - V); float NdotL = clamp(dot(N, L), 0.0, 1.0); if (NdotL > 0.0) { #ifdef USE_SOURCE_PANORAMA - sum.rgb += texturePanorama(source_panorama, L).rgb * NdotL; + vec3 val = texturePanorama(source_panorama, L).rgb; #else - L.y = -L.y; - sum.rgb += textureCubeLod(source_cube, L, 0.0).rgb * NdotL; + vec3 val = textureCubeLod(source_cube, L, 0.0).rgb; #endif + //mix using Linear, to approximate high end back-end + val = mix(pow((val + vec3(0.055)) * (1.0 / (1.0 + 0.055)), vec3(2.4)), val * (1.0 / 12.92), vec3(lessThan(val, vec3(0.04045)))); + + sum.rgb += val * NdotL; sum.a += NdotL; } @@ -186,5 +227,9 @@ void main() { sum /= sum.a; + vec3 a = vec3(0.055); + sum.rgb = mix((vec3(1.0) + a) * pow(sum.rgb, vec3(1.0 / 2.4)) - a, 12.92 * sum.rgb, vec3(lessThan(sum.rgb, vec3(0.0031308)))); + gl_FragColor = vec4(sum.rgb, 1.0); +#endif } diff --git a/drivers/gles2/shaders/effect_blur.glsl b/drivers/gles2/shaders/effect_blur.glsl index a531802c75..b28d78a6ca 100644 --- a/drivers/gles2/shaders/effect_blur.glsl +++ b/drivers/gles2/shaders/effect_blur.glsl @@ -1,11 +1,20 @@ /* clang-format off */ [vertex] -layout(location = 0) in highp vec4 vertex_attrib; +#ifdef USE_GLES_OVER_GL +#define lowp +#define mediump +#define highp +#else +precision highp float; +precision highp int; +#endif + +attribute vec2 vertex_attrib; // attrib:0 /* clang-format on */ -layout(location = 4) in vec2 uv_in; +attribute vec2 uv_in; // attrib:4 -out vec2 uv_interp; +varying vec2 uv_interp; #ifdef USE_BLUR_SECTION @@ -16,7 +25,7 @@ uniform vec4 blur_section; void main() { uv_interp = uv_in; - gl_Position = vertex_attrib; + gl_Position = vec4(vertex_attrib, 0.0, 1.0); #ifdef USE_BLUR_SECTION uv_interp = blur_section.xy + uv_interp * blur_section.zw; @@ -27,29 +36,46 @@ void main() { /* clang-format off */ [fragment] -#if !defined(GLES_OVER_GL) +// texture2DLodEXT and textureCubeLodEXT are fragment shader specific. +// Do not copy these defines in the vertex section. +#ifndef USE_GLES_OVER_GL +#ifdef GL_EXT_shader_texture_lod +#extension GL_EXT_shader_texture_lod : enable +#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod) +#endif +#endif // !USE_GLES_OVER_GL + +#ifdef GL_ARB_shader_texture_lod +#extension GL_ARB_shader_texture_lod : enable +#endif + +#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod) +#define texture2DLod(img, coord, lod) texture2D(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCube(img, coord, lod) +#endif + +#ifdef USE_GLES_OVER_GL +#define lowp +#define mediump +#define highp +#else +#if defined(USE_HIGHP_PRECISION) +precision highp float; +precision highp int; +#else precision mediump float; +precision mediump int; +#endif #endif -in vec2 uv_interp; +varying vec2 uv_interp; /* clang-format on */ uniform sampler2D source_color; //texunit:0 -#ifdef SSAO_MERGE -uniform sampler2D source_ssao; //texunit:1 -#endif - uniform float lod; uniform vec2 pixel_size; -layout(location = 0) out vec4 frag_color; - -#ifdef SSAO_MERGE - -uniform vec4 ssao_color; - -#endif - #if defined(GLOW_GAUSSIAN_HORIZONTAL) || defined(GLOW_GAUSSIAN_VERTICAL) uniform float glow_strength; @@ -58,6 +84,7 @@ uniform float glow_strength; #if defined(DOF_FAR_BLUR) || defined(DOF_NEAR_BLUR) +#ifdef USE_GLES_OVER_GL #ifdef DOF_QUALITY_LOW const int dof_kernel_size = 5; const int dof_kernel_from = 2; @@ -76,6 +103,7 @@ const int dof_kernel_size = 21; const int dof_kernel_from = 10; const float dof_kernel[21] = float[](0.028174, 0.032676, 0.037311, 0.041944, 0.046421, 0.050582, 0.054261, 0.057307, 0.059587, 0.060998, 0.061476, 0.060998, 0.059587, 0.057307, 0.054261, 0.050582, 0.046421, 0.041944, 0.037311, 0.032676, 0.028174); #endif +#endif uniform sampler2D dof_source_depth; //texunit:1 uniform float dof_begin; @@ -83,24 +111,11 @@ uniform float dof_end; uniform vec2 dof_dir; uniform float dof_radius; -#ifdef DOF_NEAR_BLUR_MERGE - -uniform sampler2D source_dof_original; //texunit:2 -#endif - #endif #ifdef GLOW_FIRST_PASS -uniform float exposure; -uniform float white; - -#ifdef GLOW_USE_AUTO_EXPOSURE - -uniform highp sampler2D source_auto_exposure; //texunit:1 -uniform highp float auto_exposure_grey; - -#endif +uniform highp float luminance_cap; uniform float glow_bloom; uniform float glow_hdr_threshold; @@ -113,59 +128,95 @@ uniform float camera_z_near; void main() { -#ifdef GAUSSIAN_HORIZONTAL +#ifdef GLOW_GAUSSIAN_HORIZONTAL vec2 pix_size = pixel_size; pix_size *= 0.5; //reading from larger buffer, so use more samples - vec4 color = textureLod(source_color, uv_interp + vec2(0.0, 0.0) * pix_size, lod) * 0.214607; - color += textureLod(source_color, uv_interp + vec2(1.0, 0.0) * pix_size, lod) * 0.189879; - color += textureLod(source_color, uv_interp + vec2(2.0, 0.0) * pix_size, lod) * 0.157305; - color += textureLod(source_color, uv_interp + vec2(3.0, 0.0) * pix_size, lod) * 0.071303; - color += textureLod(source_color, uv_interp + vec2(-1.0, 0.0) * pix_size, lod) * 0.189879; - color += textureLod(source_color, uv_interp + vec2(-2.0, 0.0) * pix_size, lod) * 0.157305; - color += textureLod(source_color, uv_interp + vec2(-3.0, 0.0) * pix_size, lod) * 0.071303; - frag_color = color; + vec4 color = texture2DLod(source_color, uv_interp + vec2(0.0, 0.0) * pix_size, lod) * 0.174938; + color += texture2DLod(source_color, uv_interp + vec2(1.0, 0.0) * pix_size, lod) * 0.165569; + color += texture2DLod(source_color, uv_interp + vec2(2.0, 0.0) * pix_size, lod) * 0.140367; + color += texture2DLod(source_color, uv_interp + vec2(3.0, 0.0) * pix_size, lod) * 0.106595; + color += texture2DLod(source_color, uv_interp + vec2(-1.0, 0.0) * pix_size, lod) * 0.165569; + color += texture2DLod(source_color, uv_interp + vec2(-2.0, 0.0) * pix_size, lod) * 0.140367; + color += texture2DLod(source_color, uv_interp + vec2(-3.0, 0.0) * pix_size, lod) * 0.106595; + color *= glow_strength; + gl_FragColor = color; #endif -#ifdef GAUSSIAN_VERTICAL - vec4 color = textureLod(source_color, uv_interp + vec2(0.0, 0.0) * pixel_size, lod) * 0.38774; - color += textureLod(source_color, uv_interp + vec2(0.0, 1.0) * pixel_size, lod) * 0.24477; - color += textureLod(source_color, uv_interp + vec2(0.0, 2.0) * pixel_size, lod) * 0.06136; - color += textureLod(source_color, uv_interp + vec2(0.0, -1.0) * pixel_size, lod) * 0.24477; - color += textureLod(source_color, uv_interp + vec2(0.0, -2.0) * pixel_size, lod) * 0.06136; - frag_color = color; +#ifdef GLOW_GAUSSIAN_VERTICAL + vec4 color = texture2DLod(source_color, uv_interp + vec2(0.0, 0.0) * pixel_size, lod) * 0.288713; + color += texture2DLod(source_color, uv_interp + vec2(0.0, 1.0) * pixel_size, lod) * 0.233062; + color += texture2DLod(source_color, uv_interp + vec2(0.0, 2.0) * pixel_size, lod) * 0.122581; + color += texture2DLod(source_color, uv_interp + vec2(0.0, -1.0) * pixel_size, lod) * 0.233062; + color += texture2DLod(source_color, uv_interp + vec2(0.0, -2.0) * pixel_size, lod) * 0.122581; + color *= glow_strength; + gl_FragColor = color; #endif - //glow uses larger sigma for a more rounded blur effect +#ifndef USE_GLES_OVER_GL +#if defined(DOF_FAR_BLUR) || defined(DOF_NEAR_BLUR) -#ifdef GLOW_GAUSSIAN_HORIZONTAL - vec2 pix_size = pixel_size; - pix_size *= 0.5; //reading from larger buffer, so use more samples - vec4 color = textureLod(source_color, uv_interp + vec2(0.0, 0.0) * pix_size, lod) * 0.174938; - color += textureLod(source_color, uv_interp + vec2(1.0, 0.0) * pix_size, lod) * 0.165569; - color += textureLod(source_color, uv_interp + vec2(2.0, 0.0) * pix_size, lod) * 0.140367; - color += textureLod(source_color, uv_interp + vec2(3.0, 0.0) * pix_size, lod) * 0.106595; - color += textureLod(source_color, uv_interp + vec2(-1.0, 0.0) * pix_size, lod) * 0.165569; - color += textureLod(source_color, uv_interp + vec2(-2.0, 0.0) * pix_size, lod) * 0.140367; - color += textureLod(source_color, uv_interp + vec2(-3.0, 0.0) * pix_size, lod) * 0.106595; - color *= glow_strength; - frag_color = color; +#ifdef DOF_QUALITY_LOW + const int dof_kernel_size = 5; + const int dof_kernel_from = 2; + float dof_kernel[5]; + dof_kernel[0] = 0.153388; + dof_kernel[1] = 0.221461; + dof_kernel[2] = 0.250301; + dof_kernel[3] = 0.221461; + dof_kernel[4] = 0.153388; #endif -#ifdef GLOW_GAUSSIAN_VERTICAL - vec4 color = textureLod(source_color, uv_interp + vec2(0.0, 0.0) * pixel_size, lod) * 0.288713; - color += textureLod(source_color, uv_interp + vec2(0.0, 1.0) * pixel_size, lod) * 0.233062; - color += textureLod(source_color, uv_interp + vec2(0.0, 2.0) * pixel_size, lod) * 0.122581; - color += textureLod(source_color, uv_interp + vec2(0.0, -1.0) * pixel_size, lod) * 0.233062; - color += textureLod(source_color, uv_interp + vec2(0.0, -2.0) * pixel_size, lod) * 0.122581; - color *= glow_strength; - frag_color = color; +#ifdef DOF_QUALITY_MEDIUM + const int dof_kernel_size = 11; + const int dof_kernel_from = 5; + float dof_kernel[11]; + dof_kernel[0] = 0.055037; + dof_kernel[1] = 0.072806; + dof_kernel[2] = 0.090506; + dof_kernel[3] = 0.105726; + dof_kernel[4] = 0.116061; + dof_kernel[5] = 0.119726; + dof_kernel[6] = 0.116061; + dof_kernel[7] = 0.105726; + dof_kernel[8] = 0.090506; + dof_kernel[9] = 0.072806; + dof_kernel[10] = 0.055037; #endif +#ifdef DOF_QUALITY_HIGH + const int dof_kernel_size = 21; + const int dof_kernel_from = 10; + float dof_kernel[21]; + dof_kernel[0] = 0.028174; + dof_kernel[1] = 0.032676; + dof_kernel[2] = 0.037311; + dof_kernel[3] = 0.041944; + dof_kernel[4] = 0.046421; + dof_kernel[5] = 0.050582; + dof_kernel[6] = 0.054261; + dof_kernel[7] = 0.057307; + dof_kernel[8] = 0.059587; + dof_kernel[9] = 0.060998; + dof_kernel[10] = 0.061476; + dof_kernel[11] = 0.060998; + dof_kernel[12] = 0.059587; + dof_kernel[13] = 0.057307; + dof_kernel[14] = 0.054261; + dof_kernel[15] = 0.050582; + dof_kernel[16] = 0.046421; + dof_kernel[17] = 0.041944; + dof_kernel[18] = 0.037311; + dof_kernel[19] = 0.032676; + dof_kernel[20] = 0.028174; +#endif +#endif +#endif //!USE_GLES_OVER_GL + #ifdef DOF_FAR_BLUR vec4 color_accum = vec4(0.0); - float depth = textureLod(dof_source_depth, uv_interp, 0.0).r; + float depth = texture2DLod(dof_source_depth, uv_interp, 0.0).r; depth = depth * 2.0 - 1.0; #ifdef USE_ORTHOGONAL_PROJECTION depth = ((depth + (camera_z_far + camera_z_near) / (camera_z_far - camera_z_near)) * (camera_z_far - camera_z_near)) / 2.0; @@ -183,17 +234,17 @@ void main() { float tap_k = dof_kernel[i]; - float tap_depth = texture(dof_source_depth, tap_uv, 0.0).r; + float tap_depth = texture2D(dof_source_depth, tap_uv, 0.0).r; tap_depth = tap_depth * 2.0 - 1.0; #ifdef USE_ORTHOGONAL_PROJECTION tap_depth = ((tap_depth + (camera_z_far + camera_z_near) / (camera_z_far - camera_z_near)) * (camera_z_far - camera_z_near)) / 2.0; #else tap_depth = 2.0 * camera_z_near * camera_z_far / (camera_z_far + camera_z_near - tap_depth * (camera_z_far - camera_z_near)); #endif - float tap_amount = mix(smoothstep(dof_begin, dof_end, tap_depth), 1.0, int_ofs == 0); + float tap_amount = int_ofs == 0 ? 1.0 : smoothstep(dof_begin, dof_end, tap_depth); tap_amount *= tap_amount * tap_amount; //prevent undesired glow effect - vec4 tap_color = textureLod(source_color, tap_uv, 0.0) * tap_k; + vec4 tap_color = texture2DLod(source_color, tap_uv, 0.0) * tap_k; k_accum += tap_k * tap_amount; color_accum += tap_color * tap_amount; @@ -203,7 +254,7 @@ void main() { color_accum /= k_accum; } - frag_color = color_accum; ///k_accum; + gl_FragColor = color_accum; ///k_accum; #endif @@ -211,19 +262,19 @@ void main() { vec4 color_accum = vec4(0.0); - float max_accum = 0; + float max_accum = 0.0; for (int i = 0; i < dof_kernel_size; i++) { int int_ofs = i - dof_kernel_from; vec2 tap_uv = uv_interp + dof_dir * float(int_ofs) * dof_radius; - float ofs_influence = max(0.0, 1.0 - float(abs(int_ofs)) / float(dof_kernel_from)); + float ofs_influence = max(0.0, 1.0 - abs(float(int_ofs)) / float(dof_kernel_from)); float tap_k = dof_kernel[i]; - vec4 tap_color = textureLod(source_color, tap_uv, 0.0); + vec4 tap_color = texture2DLod(source_color, tap_uv, 0.0); - float tap_depth = texture(dof_source_depth, tap_uv, 0.0).r; + float tap_depth = texture2D(dof_source_depth, tap_uv, 0.0).r; tap_depth = tap_depth * 2.0 - 1.0; #ifdef USE_ORTHOGONAL_PROJECTION tap_depth = ((tap_depth + (camera_z_far + camera_z_near) / (camera_z_far - camera_z_near)) * (camera_z_far - camera_z_near)) / 2.0; @@ -246,46 +297,16 @@ void main() { color_accum.a = max(color_accum.a, sqrt(max_accum)); -#ifdef DOF_NEAR_BLUR_MERGE - - vec4 original = textureLod(source_dof_original, uv_interp, 0.0); - color_accum = mix(original, color_accum, color_accum.a); - -#endif - -#ifndef DOF_NEAR_FIRST_TAP - //color_accum=vec4(vec3(color_accum.a),1.0); -#endif - frag_color = color_accum; + gl_FragColor = color_accum; #endif #ifdef GLOW_FIRST_PASS -#ifdef GLOW_USE_AUTO_EXPOSURE - - frag_color /= texelFetch(source_auto_exposure, ivec2(0, 0), 0).r / auto_exposure_grey; -#endif - frag_color *= exposure; - - float luminance = max(frag_color.r, max(frag_color.g, frag_color.b)); + float luminance = max(gl_FragColor.r, max(gl_FragColor.g, gl_FragColor.b)); float feedback = max(smoothstep(glow_hdr_threshold, glow_hdr_threshold + glow_hdr_scale, luminance), glow_bloom); - frag_color *= feedback; - -#endif - -#ifdef SIMPLE_COPY - vec4 color = textureLod(source_color, uv_interp, 0.0); - frag_color = color; -#endif - -#ifdef SSAO_MERGE - - vec4 color = textureLod(source_color, uv_interp, 0.0); - float ssao = textureLod(source_ssao, uv_interp, 0.0).r; - - frag_color = vec4(mix(color.rgb, color.rgb * mix(ssao_color.rgb, vec3(1.0), ssao), color.a), 1.0); + gl_FragColor = min(gl_FragColor * feedback, vec4(luminance_cap)); #endif } diff --git a/drivers/gles2/shaders/lens_distorted.glsl b/drivers/gles2/shaders/lens_distorted.glsl new file mode 100644 index 0000000000..f4ff80ba9a --- /dev/null +++ b/drivers/gles2/shaders/lens_distorted.glsl @@ -0,0 +1,85 @@ +/* clang-format off */ +[vertex] + +#ifdef USE_GLES_OVER_GL +#define lowp +#define mediump +#define highp +#else +precision highp float; +precision highp int; +#endif + +attribute highp vec2 vertex; // attrib:0 +/* clang-format on */ + +uniform vec2 offset; +uniform vec2 scale; + +varying vec2 uv_interp; + +void main() { + + uv_interp = vertex.xy * 2.0 - 1.0; + + vec2 v = vertex.xy * scale + offset; + gl_Position = vec4(v, 0.0, 1.0); +} + +/* clang-format off */ +[fragment] + +#ifdef USE_GLES_OVER_GL +#define lowp +#define mediump +#define highp +#else +#if defined(USE_HIGHP_PRECISION) +precision highp float; +precision highp int; +#else +precision mediump float; +precision mediump int; +#endif +#endif + +uniform sampler2D source; //texunit:0 +/* clang-format on */ + +uniform vec2 eye_center; +uniform float k1; +uniform float k2; +uniform float upscale; +uniform float aspect_ratio; + +varying vec2 uv_interp; + +void main() { + vec2 coords = uv_interp; + vec2 offset = coords - eye_center; + + // take aspect ratio into account + offset.y /= aspect_ratio; + + // distort + vec2 offset_sq = offset * offset; + float radius_sq = offset_sq.x + offset_sq.y; + float radius_s4 = radius_sq * radius_sq; + float distortion_scale = 1.0 + (k1 * radius_sq) + (k2 * radius_s4); + offset *= distortion_scale; + + // reapply aspect ratio + offset.y *= aspect_ratio; + + // add our eye center back in + coords = offset + eye_center; + coords /= upscale; + + // and check our color + if (coords.x < -1.0 || coords.y < -1.0 || coords.x > 1.0 || coords.y > 1.0) { + gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0); + } else { + coords = (coords + vec2(1.0)) / vec2(2.0); + gl_FragColor = texture2D(source, coords); + } +} diff --git a/drivers/gles2/shaders/scene.glsl b/drivers/gles2/shaders/scene.glsl index da4c3a84f1..57c2d886b3 100644 --- a/drivers/gles2/shaders/scene.glsl +++ b/drivers/gles2/shaders/scene.glsl @@ -2,6 +2,7 @@ [vertex] #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else @@ -9,12 +10,15 @@ precision highp float; precision highp int; #endif +/* clang-format on */ #include "stdlib.glsl" +/* clang-format off */ #define SHADER_IS_SRGB true #define M_PI 3.14159265359 + // // attributes // @@ -27,15 +31,15 @@ attribute vec3 normal_attrib; // attrib:1 attribute vec4 tangent_attrib; // attrib:2 #endif -#ifdef ENABLE_COLOR_INTERP +#if defined(ENABLE_COLOR_INTERP) attribute vec4 color_attrib; // attrib:3 #endif -#ifdef ENABLE_UV_INTERP +#if defined(ENABLE_UV_INTERP) attribute vec2 uv_attrib; // attrib:4 #endif -#ifdef ENABLE_UV2_INTERP +#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) attribute vec2 uv2_attrib; // attrib:5 #endif @@ -43,9 +47,9 @@ attribute vec2 uv2_attrib; // attrib:5 #ifdef USE_SKELETON_SOFTWARE -attribute highp vec4 bone_transform_row_0; // attrib:8 -attribute highp vec4 bone_transform_row_1; // attrib:9 -attribute highp vec4 bone_transform_row_2; // attrib:10 +attribute highp vec4 bone_transform_row_0; // attrib:13 +attribute highp vec4 bone_transform_row_1; // attrib:14 +attribute highp vec4 bone_transform_row_2; // attrib:15 #else @@ -74,16 +78,16 @@ attribute highp vec4 instance_custom_data; // attrib:12 // uniforms // -uniform mat4 camera_matrix; -uniform mat4 camera_inverse_matrix; -uniform mat4 projection_matrix; -uniform mat4 projection_inverse_matrix; +uniform highp mat4 camera_matrix; +uniform highp mat4 camera_inverse_matrix; +uniform highp mat4 projection_matrix; +uniform highp mat4 projection_inverse_matrix; -uniform mat4 world_transform; +uniform highp mat4 world_transform; uniform highp float time; -uniform float normal_mult; +uniform highp vec2 viewport_size; #ifdef RENDER_DEPTH uniform float light_bias; @@ -94,6 +98,10 @@ uniform float light_normal_bias; // varyings // +#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) +varying highp vec4 position_interp; +#endif + varying highp vec3 vertex_interp; varying vec3 normal_interp; @@ -102,15 +110,15 @@ varying vec3 tangent_interp; varying vec3 binormal_interp; #endif -#ifdef ENABLE_COLOR_INTERP +#if defined(ENABLE_COLOR_INTERP) varying vec4 color_interp; #endif -#ifdef ENABLE_UV_INTERP +#if defined(ENABLE_UV_INTERP) varying vec2 uv_interp; #endif -#ifdef ENABLE_UV2_INTERP +#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) varying vec2 uv2_interp; #endif @@ -130,11 +138,6 @@ uniform highp float shadow_dual_paraboloid_render_side; #if defined(USE_SHADOW) && defined(USE_LIGHTING) -#ifdef LIGHT_MODE_DIRECTIONAL -uniform highp sampler2D light_directional_shadow; // texunit:-3 -uniform highp vec4 light_split_offsets; -#endif - uniform highp mat4 light_shadow_matrix; varying highp vec4 shadow_coord; @@ -160,22 +163,23 @@ varying highp vec3 diffuse_interp; varying highp vec3 specular_interp; // general for all lights -uniform vec4 light_color; -uniform float light_specular; +uniform highp vec4 light_color; +uniform highp vec4 shadow_color; +uniform highp float light_specular; // directional -uniform vec3 light_direction; +uniform highp vec3 light_direction; // omni -uniform vec3 light_position; +uniform highp vec3 light_position; -uniform float light_range; -uniform vec4 light_attenuation; +uniform highp float light_range; +uniform highp float light_attenuation; // spot -uniform float light_spot_attenuation; -uniform float light_spot_range; -uniform float light_spot_angle; +uniform highp float light_spot_attenuation; +uniform highp float light_spot_range; +uniform highp float light_spot_angle; void light_compute( vec3 N, @@ -251,17 +255,71 @@ void light_compute( float cLdotH = max(dot(L, H), 0.0); float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; float blinn = pow(cNdotH, shininess); - blinn *= (shininess + 8.0) / (8.0 * 3.141592654); + blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); specular_brdf_NL = (blinn) / max(4.0 * cNdotV * cNdotL, 0.75); #endif SRGB_APPROX(specular_brdf_NL) - specular_interp += specular_brdf_NL * light_color * attenuation; + specular_interp += specular_brdf_NL * light_color * attenuation * (1.0 / M_PI); } } #endif +#ifdef USE_VERTEX_LIGHTING + +#ifdef USE_REFLECTION_PROBE1 + +uniform highp mat4 refprobe1_local_matrix; +varying mediump vec4 refprobe1_reflection_normal_blend; +uniform highp vec3 refprobe1_box_extents; + +#ifndef USE_LIGHTMAP +varying mediump vec3 refprobe1_ambient_normal; +#endif + +#endif //reflection probe1 + +#ifdef USE_REFLECTION_PROBE2 + +uniform highp mat4 refprobe2_local_matrix; +varying mediump vec4 refprobe2_reflection_normal_blend; +uniform highp vec3 refprobe2_box_extents; + +#ifndef USE_LIGHTMAP +varying mediump vec3 refprobe2_ambient_normal; +#endif + +#endif //reflection probe2 + +#endif //vertex lighting for refprobes + +#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + +varying vec4 fog_interp; + +uniform mediump vec4 fog_color_base; +#ifdef LIGHT_MODE_DIRECTIONAL +uniform mediump vec4 fog_sun_color_amount; +#endif + +uniform bool fog_transmit_enabled; +uniform mediump float fog_transmit_curve; + +#ifdef FOG_DEPTH_ENABLED +uniform highp float fog_depth_begin; +uniform mediump float fog_depth_curve; +uniform mediump float fog_max_distance; +#endif + +#ifdef FOG_HEIGHT_ENABLED +uniform highp float fog_height_min; +uniform highp float fog_height_max; +uniform mediump float fog_height_curve; +#endif + +#endif //fog + void main() { highp vec4 vertex = vertex_attrib; @@ -277,38 +335,42 @@ void main() { vec4(0.0, 0.0, 0.0, 1.0)); world_matrix = world_matrix * transpose(m); } + #endif - vec3 normal = normal_attrib * normal_mult; + vec3 normal = normal_attrib; #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) vec3 tangent = tangent_attrib.xyz; - tangent *= normal_mult; float binormalf = tangent_attrib.a; vec3 binormal = normalize(cross(normal, tangent) * binormalf); #endif -#ifdef ENABLE_COLOR_INTERP +#if defined(ENABLE_COLOR_INTERP) color_interp = color_attrib; #ifdef USE_INSTANCING color_interp *= instance_color; #endif #endif -#ifdef ENABLE_UV_INTERP +#if defined(ENABLE_UV_INTERP) uv_interp = uv_attrib; #endif -#ifdef ENABLE_UV2_INTERP +#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) uv2_interp = uv2_attrib; #endif +#if defined(OVERRIDE_POSITION) + highp vec4 position; +#endif + #if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) vertex = world_matrix * vertex; normal = normalize((world_matrix * vec4(normal, 0.0)).xyz); #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - tangent = normalize((world_matrix * vec4(tangent, 0.0)), xyz); + tangent = normalize((world_matrix * vec4(tangent, 0.0)).xyz); binormal = normalize((world_matrix * vec4(binormal, 0.0)).xyz); #endif #endif @@ -344,7 +406,8 @@ void main() { #endif - world_matrix = bone_transform * world_matrix; + world_matrix = world_matrix * bone_transform; + #endif #ifdef USE_INSTANCING @@ -354,9 +417,12 @@ void main() { #endif - mat4 modelview = camera_matrix * world_matrix; + mat4 local_projection_matrix = projection_matrix; + + mat4 modelview = camera_inverse_matrix * world_matrix; float roughness = 1.0; +#define projection_matrix local_projection_matrix #define world_transform world_matrix { @@ -381,11 +447,11 @@ VERTEX_SHADER_CODE #endif #if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) - vertex = camera_matrix * vertex; - normal = normalize((camera_matrix * vec4(normal, 0.0)).xyz); + vertex = camera_inverse_matrix * vertex; + normal = normalize((camera_inverse_matrix * vec4(normal, 0.0)).xyz); #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - tangent = normalize((camera_matrix * vec4(tangent, 0.0)).xyz); - binormal = normalize((camera_matrix * vec4(binormal, 0.0)).xyz); + tangent = normalize((camera_inverse_matrix * vec4(tangent, 0.0)).xyz); + binormal = normalize((camera_inverse_matrix * vec4(binormal, 0.0)).xyz); #endif #endif @@ -438,10 +504,15 @@ VERTEX_SHADER_CODE float normalized_distance = light_length / light_range; - float omni_attenuation = pow(1.0 - normalized_distance, light_attenuation.w); + if (normalized_distance < 1.0) { - vec3 attenuation = vec3(omni_attenuation); - light_att = vec3(omni_attenuation); + float omni_attenuation = pow(1.0 - normalized_distance, light_attenuation); + + vec3 attenuation = vec3(omni_attenuation); + light_att = vec3(omni_attenuation); + } else { + light_att = vec3(0.0); + } L = normalize(light_vec); @@ -453,17 +524,30 @@ VERTEX_SHADER_CODE float light_length = length(light_rel_vec); float normalized_distance = light_length / light_range; - float spot_attenuation = pow(1.0 - normalized_distance, light_attenuation.w); - vec3 spot_dir = light_direction; + if (normalized_distance < 1.0) { + + float spot_attenuation = pow(1.0 - normalized_distance, light_attenuation); + vec3 spot_dir = light_direction; - float spot_cutoff = light_spot_angle; + float spot_cutoff = light_spot_angle; - float scos = max(dot(-normalize(light_rel_vec), spot_dir), spot_cutoff); - float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_cutoff)); + float angle = dot(-normalize(light_rel_vec), spot_dir); - spot_attenuation *= 1.0 - pow(spot_rim, light_spot_attenuation); + if (angle > spot_cutoff) { + + float scos = max(angle, spot_cutoff); + float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_cutoff)); + + spot_attenuation *= 1.0 - pow(spot_rim, light_spot_attenuation); + + light_att = vec3(spot_attenuation); + } else { + light_att = vec3(0.0); + } + } else { + light_att = vec3(0.0); + } - light_att = vec3(spot_attenuation); L = normalize(light_rel_vec); #endif @@ -492,30 +576,132 @@ VERTEX_SHADER_CODE #if defined(LIGHT_USE_PSSM4) shadow_coord3 = light_shadow_matrix3 * vi4; - shadow_coord3 = light_shadow_matrix3 * vi4; + shadow_coord4 = light_shadow_matrix4 * vi4; #endif #endif //use shadow and use lighting +#ifdef USE_VERTEX_LIGHTING + +#ifdef USE_REFLECTION_PROBE1 + { + vec3 ref_normal = normalize(reflect(vertex_interp, normal_interp)); + vec3 local_pos = (refprobe1_local_matrix * vec4(vertex_interp, 1.0)).xyz; + vec3 inner_pos = abs(local_pos / refprobe1_box_extents); + float blend = max(inner_pos.x, max(inner_pos.y, inner_pos.z)); + + { + vec3 local_ref_vec = (refprobe1_local_matrix * vec4(ref_normal, 0.0)).xyz; + refprobe1_reflection_normal_blend.xyz = local_ref_vec; + refprobe1_reflection_normal_blend.a = blend; + } +#ifndef USE_LIGHTMAP + + refprobe1_ambient_normal = (refprobe1_local_matrix * vec4(normal_interp, 0.0)).xyz; +#endif + } + +#endif //USE_REFLECTION_PROBE1 + +#ifdef USE_REFLECTION_PROBE2 + { + vec3 ref_normal = normalize(reflect(vertex_interp, normal_interp)); + vec3 local_pos = (refprobe2_local_matrix * vec4(vertex_interp, 1.0)).xyz; + vec3 inner_pos = abs(local_pos / refprobe2_box_extents); + float blend = max(inner_pos.x, max(inner_pos.y, inner_pos.z)); + + { + vec3 local_ref_vec = (refprobe2_local_matrix * vec4(ref_normal, 0.0)).xyz; + refprobe2_reflection_normal_blend.xyz = local_ref_vec; + refprobe2_reflection_normal_blend.a = blend; + } +#ifndef USE_LIGHTMAP + + refprobe2_ambient_normal = (refprobe2_local_matrix * vec4(normal_interp, 0.0)).xyz; +#endif + } + +#endif //USE_REFLECTION_PROBE2 + +#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + + float fog_amount = 0.0; + +#ifdef LIGHT_MODE_DIRECTIONAL + + vec3 fog_color = mix(fog_color_base.rgb, fog_sun_color_amount.rgb, fog_sun_color_amount.a * pow(max(dot(normalize(vertex_interp), light_direction), 0.0), 8.0)); +#else + vec3 fog_color = fog_color_base.rgb; +#endif + +#ifdef FOG_DEPTH_ENABLED + + { + + float fog_z = smoothstep(fog_depth_begin, fog_max_distance, length(vertex)); + + fog_amount = pow(fog_z, fog_depth_curve) * fog_color_base.a; + } +#endif + +#ifdef FOG_HEIGHT_ENABLED + { + float y = (camera_matrix * vec4(vertex_interp, 1.0)).y; + fog_amount = max(fog_amount, pow(smoothstep(fog_height_min, fog_height_max, y), fog_height_curve)); + } +#endif + fog_interp = vec4(fog_color, fog_amount); + +#endif //fog + +#endif //use vertex lighting + +#if defined(OVERRIDE_POSITION) + gl_Position = position; +#else gl_Position = projection_matrix * vec4(vertex_interp, 1.0); +#endif + +#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) + position_interp = gl_Position; +#endif } /* clang-format off */ [fragment] + +// texture2DLodEXT and textureCubeLodEXT are fragment shader specific. +// Do not copy these defines in the vertex section. +#ifndef USE_GLES_OVER_GL +#ifdef GL_EXT_shader_texture_lod +#extension GL_EXT_shader_texture_lod : enable +#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod) +#endif +#endif // !USE_GLES_OVER_GL + +#ifdef GL_ARB_shader_texture_lod #extension GL_ARB_shader_texture_lod : enable +#endif -#ifndef GL_ARB_shader_texture_lod -#define texture2DLod(img, coord, lod) texture2D(img, coord) -#define textureCubeLod(img, coord, lod) textureCube(img, coord) +#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod) +#define texture2DLod(img, coord, lod) texture2D(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCube(img, coord, lod) #endif #ifdef USE_GLES_OVER_GL +#define lowp #define mediump #define highp #else -precision mediump float; +#if defined(USE_HIGHP_PRECISION) +precision highp float; precision highp int; +#else +precision mediump float; +precision mediump int; +#endif #endif #include "stdlib.glsl" @@ -527,17 +713,19 @@ precision highp int; // uniforms // -uniform mat4 camera_matrix; +uniform highp mat4 camera_matrix; /* clang-format on */ -uniform mat4 camera_inverse_matrix; -uniform mat4 projection_matrix; -uniform mat4 projection_inverse_matrix; +uniform highp mat4 camera_inverse_matrix; +uniform highp mat4 projection_matrix; +uniform highp mat4 projection_inverse_matrix; -uniform mat4 world_transform; +uniform highp mat4 world_transform; uniform highp float time; -#ifdef SCREEN_UV_USED +uniform highp vec2 viewport_size; + +#if defined(SCREEN_UV_USED) uniform vec2 screen_pixel_size; #endif @@ -547,17 +735,179 @@ uniform vec2 screen_pixel_size; #if defined(SCREEN_TEXTURE_USED) uniform highp sampler2D screen_texture; //texunit:-4 #endif +#if defined(DEPTH_TEXTURE_USED) +uniform highp sampler2D depth_texture; //texunit:-4 +#endif -#ifdef USE_RADIANCE_MAP +#ifdef USE_REFLECTION_PROBE1 + +#ifdef USE_VERTEX_LIGHTING + +varying mediump vec4 refprobe1_reflection_normal_blend; +#ifndef USE_LIGHTMAP +varying mediump vec3 refprobe1_ambient_normal; +#endif + +#else + +uniform bool refprobe1_use_box_project; +uniform highp vec3 refprobe1_box_extents; +uniform vec3 refprobe1_box_offset; +uniform highp mat4 refprobe1_local_matrix; + +#endif //use vertex lighting + +uniform bool refprobe1_exterior; + +uniform highp samplerCube reflection_probe1; //texunit:-5 + +uniform float refprobe1_intensity; +uniform vec4 refprobe1_ambient; + +#endif //USE_REFLECTION_PROBE1 + +#ifdef USE_REFLECTION_PROBE2 + +#ifdef USE_VERTEX_LIGHTING + +varying mediump vec4 refprobe2_reflection_normal_blend; +#ifndef USE_LIGHTMAP +varying mediump vec3 refprobe2_ambient_normal; +#endif + +#else + +uniform bool refprobe2_use_box_project; +uniform highp vec3 refprobe2_box_extents; +uniform vec3 refprobe2_box_offset; +uniform highp mat4 refprobe2_local_matrix; + +#endif //use vertex lighting + +uniform bool refprobe2_exterior; + +uniform highp samplerCube reflection_probe2; //texunit:-6 + +uniform float refprobe2_intensity; +uniform vec4 refprobe2_ambient; + +#endif //USE_REFLECTION_PROBE2 #define RADIANCE_MAX_LOD 6.0 +#if defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2) + +void reflection_process(samplerCube reflection_map, +#ifdef USE_VERTEX_LIGHTING + vec3 ref_normal, +#ifndef USE_LIGHTMAP + vec3 amb_normal, +#endif + float ref_blend, + +#else //no vertex lighting + vec3 normal, vec3 vertex, + mat4 local_matrix, + bool use_box_project, vec3 box_extents, vec3 box_offset, +#endif //vertex lighting + bool exterior, float intensity, vec4 ref_ambient, float roughness, vec3 ambient, vec3 skybox, inout highp vec4 reflection_accum, inout highp vec4 ambient_accum) { + + vec4 reflection; + +#ifdef USE_VERTEX_LIGHTING + + reflection.rgb = textureCubeLod(reflection_map, ref_normal, roughness * RADIANCE_MAX_LOD).rgb; + + float blend = ref_blend; //crappier blend formula for vertex + blend *= blend; + blend = max(0.0, 1.0 - blend); + +#else //fragment lighting + + vec3 local_pos = (local_matrix * vec4(vertex, 1.0)).xyz; + + if (any(greaterThan(abs(local_pos), box_extents))) { //out of the reflection box + return; + } + + vec3 inner_pos = abs(local_pos / box_extents); + float blend = max(inner_pos.x, max(inner_pos.y, inner_pos.z)); + blend = mix(length(inner_pos), blend, blend); + blend *= blend; + blend = max(0.0, 1.0 - blend); + + //reflect and make local + vec3 ref_normal = normalize(reflect(vertex, normal)); + ref_normal = (local_matrix * vec4(ref_normal, 0.0)).xyz; + + if (use_box_project) { //box project + + vec3 nrdir = normalize(ref_normal); + vec3 rbmax = (box_extents - local_pos) / nrdir; + vec3 rbmin = (-box_extents - local_pos) / nrdir; + + vec3 rbminmax = mix(rbmin, rbmax, vec3(greaterThan(nrdir, vec3(0.0, 0.0, 0.0)))); + + float fa = min(min(rbminmax.x, rbminmax.y), rbminmax.z); + vec3 posonbox = local_pos + nrdir * fa; + ref_normal = posonbox - box_offset.xyz; + } + + reflection.rgb = textureCubeLod(reflection_map, ref_normal, roughness * RADIANCE_MAX_LOD).rgb; +#endif + + if (exterior) { + reflection.rgb = mix(skybox, reflection.rgb, blend); + } + reflection.rgb *= intensity; + reflection.a = blend; + reflection.rgb *= blend; + + reflection_accum += reflection; + +#ifndef USE_LIGHTMAP + + vec4 ambient_out; +#ifndef USE_VERTEX_LIGHTING + + vec3 amb_normal = (local_matrix * vec4(normal, 0.0)).xyz; +#endif + + ambient_out.rgb = textureCubeLod(reflection_map, amb_normal, RADIANCE_MAX_LOD).rgb; + ambient_out.rgb = mix(ref_ambient.rgb, ambient_out.rgb, ref_ambient.a); + if (exterior) { + ambient_out.rgb = mix(ambient, ambient_out.rgb, blend); + } + + ambient_out.a = blend; + ambient_out.rgb *= blend; + ambient_accum += ambient_out; + +#endif +} + +#endif //use refprobe 1 or 2 + +#ifdef USE_LIGHTMAP +uniform mediump sampler2D lightmap; //texunit:-4 +uniform mediump float lightmap_energy; +#endif + +#ifdef USE_LIGHTMAP_CAPTURE +uniform mediump vec4[12] lightmap_captures; +uniform bool lightmap_capture_sky; + +#endif + +#ifdef USE_RADIANCE_MAP + uniform samplerCube radiance_map; // texunit:-2 uniform mat4 radiance_inverse_xform; #endif +uniform vec4 bg_color; uniform float bg_energy; uniform float ambient_sky_contribution; @@ -566,33 +916,38 @@ uniform float ambient_energy; #ifdef USE_LIGHTING +uniform highp vec4 shadow_color; + #ifdef USE_VERTEX_LIGHTING //get from vertex varying highp vec3 diffuse_interp; varying highp vec3 specular_interp; +uniform highp vec3 light_direction; //may be used by fog, so leave here + #else //done in fragment // general for all lights -uniform vec4 light_color; -uniform float light_specular; +uniform highp vec4 light_color; + +uniform highp float light_specular; // directional -uniform vec3 light_direction; +uniform highp vec3 light_direction; // omni -uniform vec3 light_position; +uniform highp vec3 light_position; -uniform vec4 light_attenuation; +uniform highp float light_attenuation; // spot -uniform float light_spot_attenuation; -uniform float light_spot_range; -uniform float light_spot_angle; +uniform highp float light_spot_attenuation; +uniform highp float light_spot_range; +uniform highp float light_spot_angle; #endif //this is needed outside above if because dual paraboloid wants it -uniform float light_range; +uniform highp float light_range; #ifdef USE_SHADOW @@ -632,6 +987,10 @@ uniform vec4 light_clamp; // varyings // +#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) +varying highp vec4 position_interp; +#endif + varying highp vec3 vertex_interp; varying vec3 normal_interp; @@ -640,24 +999,25 @@ varying vec3 tangent_interp; varying vec3 binormal_interp; #endif -#ifdef ENABLE_COLOR_INTERP +#if defined(ENABLE_COLOR_INTERP) varying vec4 color_interp; #endif -#ifdef ENABLE_UV_INTERP +#if defined(ENABLE_UV_INTERP) varying vec2 uv_interp; #endif -#ifdef ENABLE_UV2_INTERP +#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) varying vec2 uv2_interp; #endif varying vec3 view_interp; -vec3 metallic_to_specular_color(float metallic, float specular, vec3 albedo) { - float dielectric = (0.034 * 2.0) * specular; - // energy conservation - return mix(vec3(dielectric), albedo, metallic); // TODO: reference? +vec3 F0(float metallic, float specular, vec3 albedo) { + float dielectric = 0.16 * specular * specular; + // use albedo * metallic as colored specular reflectance at 0 angle for metallic materials; + // see https://google.github.io/filament/Filament.md.html + return mix(vec3(dielectric), albedo, vec3(metallic)); } /* clang-format off */ @@ -690,6 +1050,7 @@ varying highp float dp_clip; // E. Heitz, "Understanding the Masking-Shadowing Function in Microfacet-Based BRDFs", J. Comp. Graph. Tech. 3 (2) (2014). // Eqns 71-72 and 85-86 (see also Eqns 43 and 80). +/* float G_GGX_2cos(float cos_theta_m, float alpha) { // Schlick's approximation // C. Schlick, "An Inexpensive BRDF Model for Physically-based Rendering", Computer Graphics Forum. 13 (3): 233 (1994) @@ -702,6 +1063,13 @@ float G_GGX_2cos(float cos_theta_m, float alpha) { // float sin2 = (1.0 - cos2); // return 1.0 / (cos_theta_m + sqrt(cos2 + alpha * alpha * sin2)); } +*/ + +// This approximates G_GGX_2cos(cos_theta_l, alpha) * G_GGX_2cos(cos_theta_v, alpha) +// See Filament docs, Specular G section. +float V_GGX(float cos_theta_l, float cos_theta_v, float alpha) { + return 0.5 / mix(2.0 * cos_theta_l * cos_theta_v, cos_theta_l + cos_theta_v, alpha); +} float D_GGX(float cos_theta_m, float alpha) { float alpha2 = alpha * alpha; @@ -709,6 +1077,7 @@ float D_GGX(float cos_theta_m, float alpha) { return alpha2 / (M_PI * d * d); } +/* float G_GGX_anisotropic_2cos(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi) { float cos2 = cos_theta_m * cos_theta_m; float sin2 = (1.0 - cos2); @@ -716,14 +1085,30 @@ float G_GGX_anisotropic_2cos(float cos_theta_m, float alpha_x, float alpha_y, fl float s_y = alpha_y * sin_phi; return 1.0 / max(cos_theta_m + sqrt(cos2 + (s_x * s_x + s_y * s_y) * sin2), 0.001); } +*/ -float D_GGX_anisotropic(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi) { - float cos2 = cos_theta_m * cos_theta_m; +// This approximates G_GGX_anisotropic_2cos(cos_theta_l, ...) * G_GGX_anisotropic_2cos(cos_theta_v, ...) +// See Filament docs, Anisotropic specular BRDF section. +float V_GGX_anisotropic(float alpha_x, float alpha_y, float TdotV, float TdotL, float BdotV, float BdotL, float NdotV, float NdotL) { + float Lambda_V = NdotL * length(vec3(alpha_x * TdotV, alpha_y * BdotV, NdotV)); + float Lambda_L = NdotV * length(vec3(alpha_x * TdotL, alpha_y * BdotL, NdotL)); + return 0.5 / (Lambda_V + Lambda_L); +} + +float D_GGX_anisotropic(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi, float NdotH) { + float alpha2 = alpha_x * alpha_y; + highp vec3 v = vec3(alpha_y * cos_phi, alpha_x * sin_phi, alpha2 * NdotH); + highp float v2 = dot(v, v); + float w2 = alpha2 / v2; + float D = alpha2 * w2 * w2 * (1.0 / M_PI); + return D; + + /* float cos2 = cos_theta_m * cos_theta_m; float sin2 = (1.0 - cos2); float r_x = cos_phi / alpha_x; float r_y = sin_phi / alpha_y; float d = cos2 + sin2 * (r_x * r_x + r_y * r_y); - return 1.0 / max(M_PI * alpha_x * alpha_y * d * d, 0.001); + return 1.0 / max(M_PI * alpha_x * alpha_y * d * d, 0.001); */ } float SchlickFresnel(float u) { @@ -752,13 +1137,15 @@ void light_compute( float specular_blob_intensity, float roughness, float metallic, + float specular, float rim, float rim_tint, float clearcoat, float clearcoat_gloss, float anisotropy, inout vec3 diffuse_light, - inout vec3 specular_light) { + inout vec3 specular_light, + inout float alpha) { //this makes lights behave closer to linear, but then addition of lights looks bad //better left disabled @@ -792,7 +1179,19 @@ LIGHT_SHADER_CODE float NdotL = dot(N, L); float cNdotL = max(NdotL, 0.0); // clamped NdotL float NdotV = dot(N, V); - float cNdotV = max(NdotV, 0.0); + float cNdotV = max(abs(NdotV), 1e-6); + +#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_USE_CLEARCOAT) + vec3 H = normalize(V + L); +#endif + +#if defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_USE_CLEARCOAT) + float cNdotH = max(dot(N, H), 0.0); +#endif + +#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_USE_CLEARCOAT) + float cLdotH = max(dot(L, H), 0.0); +#endif if (metallic < 1.0) { #if defined(DIFFUSE_OREN_NAYAR) @@ -828,13 +1227,9 @@ LIGHT_SHADER_CODE #elif defined(DIFFUSE_BURLEY) { - - vec3 H = normalize(V + L); - float cLdotH = max(0.0, dot(L, H)); - - float FD90 = 0.5 + 2.0 * cLdotH * cLdotH * roughness; - float FdV = 1.0 + (FD90 - 1.0) * SchlickFresnel(cNdotV); - float FdL = 1.0 + (FD90 - 1.0) * SchlickFresnel(cNdotL); + float FD90_minus_1 = 2.0 * cLdotH * cLdotH * roughness - 0.5; + float FdV = 1.0 + FD90_minus_1 * SchlickFresnel(cNdotV); + float FdL = 1.0 + FD90_minus_1 * SchlickFresnel(cNdotL); diffuse_brdf_NL = (1.0 / M_PI) * FdV * FdL * cNdotL; /* float energyBias = mix(roughness, 0.0, 0.5); @@ -868,20 +1263,18 @@ LIGHT_SHADER_CODE if (roughness > 0.0) { - // D - - float specular_brdf_NL; +#if defined(SPECULAR_SCHLICK_GGX) + vec3 specular_brdf_NL = vec3(0.0); +#else + float specular_brdf_NL = 0.0; +#endif #if defined(SPECULAR_BLINN) //normalized blinn - vec3 H = normalize(V + L); - float cNdotH = max(dot(N, H), 0.0); - float cVdotH = max(dot(V, H), 0.0); - float cLdotH = max(dot(L, H), 0.0); float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; float blinn = pow(cNdotH, shininess); - blinn *= (shininess + 8.0) / (8.0 * 3.141592654); + blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); specular_brdf_NL = (blinn) / max(4.0 * cNdotV * cNdotL, 0.75); #elif defined(SPECULAR_PHONG) @@ -890,7 +1283,7 @@ LIGHT_SHADER_CODE float cRdotV = max(0.0, dot(R, V)); float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; float phong = pow(cRdotV, shininess); - phong *= (shininess + 8.0) / (8.0 * 3.141592654); + phong *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); specular_brdf_NL = (phong) / max(4.0 * cNdotV * cNdotL, 0.75); #elif defined(SPECULAR_TOON) @@ -903,38 +1296,32 @@ LIGHT_SHADER_CODE #elif defined(SPECULAR_DISABLED) // none.. - specular_brdf_NL = 0.0; #elif defined(SPECULAR_SCHLICK_GGX) // shlick+ggx as default - vec3 H = normalize(V + L); - - float cNdotH = max(dot(N, H), 0.0); - float cLdotH = max(dot(L, H), 0.0); - #if defined(LIGHT_USE_ANISOTROPY) - + float alpha_ggx = roughness * roughness; float aspect = sqrt(1.0 - anisotropy * 0.9); - float rx = roughness / aspect; - float ry = roughness * aspect; - float ax = rx * rx; - float ay = ry * ry; + float ax = alpha_ggx / aspect; + float ay = alpha_ggx * aspect; float XdotH = dot(T, H); float YdotH = dot(B, H); - float D = D_GGX_anisotropic(cNdotH, ax, ay, XdotH, YdotH); - float G = G_GGX_anisotropic_2cos(cNdotL, ax, ay, XdotH, YdotH) * G_GGX_anisotropic_2cos(cNdotV, ax, ay, XdotH, YdotH); + float D = D_GGX_anisotropic(cNdotH, ax, ay, XdotH, YdotH, cNdotH); + //float G = G_GGX_anisotropic_2cos(cNdotL, ax, ay, XdotH, YdotH) * G_GGX_anisotropic_2cos(cNdotV, ax, ay, XdotH, YdotH); + float G = V_GGX_anisotropic(ax, ay, dot(T, V), dot(T, L), dot(B, V), dot(B, L), cNdotV, cNdotL); #else - float alpha = roughness * roughness; - float D = D_GGX(cNdotH, alpha); - float G = G_GGX_2cos(cNdotL, alpha) * G_GGX_2cos(cNdotV, alpha); + float alpha_ggx = roughness * roughness; + float D = D_GGX(cNdotH, alpha_ggx); + //float G = G_GGX_2cos(cNdotL, alpha_ggx) * G_GGX_2cos(cNdotV, alpha_ggx); + float G = V_GGX(cNdotL, cNdotV, alpha_ggx); #endif // F - //float F0 = 1.0; - //float cLdotH5 = SchlickFresnel(cLdotH); - //float F = mix(cLdotH5, 1.0, F0); + vec3 f0 = F0(metallic, specular, diffuse_color); + float cLdotH5 = SchlickFresnel(cLdotH); + vec3 F = mix(vec3(cLdotH5), vec3(1.0), f0); - specular_brdf_NL = cNdotL * D /* F */ * G; + specular_brdf_NL = cNdotL * D * F * G; #endif @@ -942,26 +1329,25 @@ LIGHT_SHADER_CODE specular_light += specular_brdf_NL * light_color * specular_blob_intensity * attenuation; #if defined(LIGHT_USE_CLEARCOAT) - if (clearcoat_gloss > 0.0) { -#if !defined(SPECULAR_SCHLICK_GGX) && !defined(SPECULAR_BLINN) - vec3 H = normalize(V + L); -#endif + #if !defined(SPECULAR_SCHLICK_GGX) - float cNdotH = max(dot(N, H), 0.0); - float cLdotH = max(dot(L, H), 0.0); - float cLdotH5 = SchlickFresnel(cLdotH); + float cLdotH5 = SchlickFresnel(cLdotH); #endif - float Dr = GTR1(cNdotH, mix(.1, .001, clearcoat_gloss)); - float Fr = mix(.04, 1.0, cLdotH5); - float Gr = G_GGX_2cos(cNdotL, .25) * G_GGX_2cos(cNdotV, .25); + float Dr = GTR1(cNdotH, mix(.1, .001, clearcoat_gloss)); + float Fr = mix(.04, 1.0, cLdotH5); + //float Gr = G_GGX_2cos(cNdotL, .25) * G_GGX_2cos(cNdotV, .25); + float Gr = V_GGX(cNdotL, cNdotV, 0.25); - float specular_brdf_NL = 0.25 * clearcoat * Gr * Fr * Dr * cNdotL; + float clearcoat_specular_brdf_NL = 0.25 * clearcoat * Gr * Fr * Dr * cNdotL; - specular_light += specular_brdf_NL * light_color * specular_blob_intensity * attenuation; - } + specular_light += clearcoat_specular_brdf_NL * light_color * specular_blob_intensity * attenuation; #endif } +#ifdef USE_SHADOW_TO_OPACITY + alpha = min(alpha, clamp(1.0 - length(attenuation), 0.0, 1.0)); +#endif + #endif //defined(USE_LIGHT_SHADER_CODE) } @@ -970,15 +1356,27 @@ LIGHT_SHADER_CODE #ifdef USE_SHADOW -#define SAMPLE_SHADOW_TEXEL(p_shadow, p_pos, p_depth) step(p_depth, texture2D(p_shadow, p_pos).r) +#ifdef USE_RGBA_SHADOWS + +#define SHADOW_DEPTH(m_val) dot(m_val, vec4(1.0 / (255.0 * 255.0 * 255.0), 1.0 / (255.0 * 255.0), 1.0 / 255.0, 1.0)) + +#else + +#define SHADOW_DEPTH(m_val) (m_val).r + +#endif + +#define SAMPLE_SHADOW_TEXEL(p_shadow, p_pos, p_depth) step(p_depth, SHADOW_DEPTH(texture2D(p_shadow, p_pos))) +#define SAMPLE_SHADOW_TEXEL_PROJ(p_shadow, p_pos) step(p_pos.z, SHADOW_DEPTH(texture2DProj(p_shadow, p_pos))) -float sample_shadow( - highp sampler2D shadow, - highp vec2 pos, - highp float depth) { +float sample_shadow(highp sampler2D shadow, highp vec4 spos) { #ifdef SHADOW_MODE_PCF_13 + spos.xyz /= spos.w; + vec2 pos = spos.xy; + float depth = spos.z; + float avg = SAMPLE_SHADOW_TEXEL(shadow, pos, depth); avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(shadow_pixel_size.x, 0.0), depth); avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(-shadow_pixel_size.x, 0.0), depth); @@ -997,6 +1395,10 @@ float sample_shadow( #ifdef SHADOW_MODE_PCF_5 + spos.xyz /= spos.w; + vec2 pos = spos.xy; + float depth = spos.z; + float avg = SAMPLE_SHADOW_TEXEL(shadow, pos, depth); avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(shadow_pixel_size.x, 0.0), depth); avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(-shadow_pixel_size.x, 0.0), depth); @@ -1008,12 +1410,42 @@ float sample_shadow( #if !defined(SHADOW_MODE_PCF_5) || !defined(SHADOW_MODE_PCF_13) - return SAMPLE_SHADOW_TEXEL(shadow, pos, depth); + return SAMPLE_SHADOW_TEXEL_PROJ(shadow, spos); #endif } #endif +#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + +#if defined(USE_VERTEX_LIGHTING) + +varying vec4 fog_interp; + +#else +uniform mediump vec4 fog_color_base; +#ifdef LIGHT_MODE_DIRECTIONAL +uniform mediump vec4 fog_sun_color_amount; +#endif + +uniform bool fog_transmit_enabled; +uniform mediump float fog_transmit_curve; + +#ifdef FOG_DEPTH_ENABLED +uniform highp float fog_depth_begin; +uniform mediump float fog_depth_curve; +uniform mediump float fog_max_distance; +#endif + +#ifdef FOG_HEIGHT_ENABLED +uniform highp float fog_height_min; +uniform highp float fog_height_max; +uniform mediump float fog_height_curve; +#endif + +#endif //vertex lit +#endif //fog + void main() { #ifdef RENDER_DEPTH_DUAL_PARABOLOID @@ -1022,6 +1454,7 @@ void main() { discard; #endif highp vec3 vertex = vertex_interp; + vec3 view = -normalize(vertex_interp); vec3 albedo = vec3(1.0); vec3 transmission = vec3(0.0); float metallic = 0.0; @@ -1034,10 +1467,19 @@ void main() { float clearcoat_gloss = 0.0; float anisotropy = 0.0; vec2 anisotropy_flow = vec2(1.0, 0.0); + float sss_strength = 0.0; //unused + // gl_FragDepth is not available in GLES2, so writing to DEPTH is not converted to gl_FragDepth by Godot compiler resulting in a + // compile error because DEPTH is not a variable. + float m_DEPTH = 0.0; float alpha = 1.0; float side = 1.0; + float specular_blob_intensity = 1.0; +#if defined(SPECULAR_TOON) + specular_blob_intensity *= specular * 2.0; +#endif + #if defined(ENABLE_AO) float ao = 1.0; float ao_light_affect = 0.0; @@ -1057,11 +1499,11 @@ void main() { #endif float normaldepth = 1.0; -#ifdef ALPHA_SCISSOR_USED +#if defined(ALPHA_SCISSOR_USED) float alpha_scissor = 0.5; #endif -#ifdef SCREEN_UV_USED +#if defined(SCREEN_UV_USED) vec2 screen_uv = gl_FragCoord.xy * screen_pixel_size; #endif @@ -1077,8 +1519,8 @@ FRAGMENT_SHADER_CODE normalmap.xy = normalmap.xy * 2.0 - 1.0; normalmap.z = sqrt(max(0.0, 1.0 - dot(normalmap.xy, normalmap.xy))); - // normal = normalize(mix(normal_interp, tangent * normalmap.x + binormal * normalmap.y + normal * normalmap.z, normaldepth)) * side; - normal = normalmap; + normal = normalize(mix(normal_interp, tangent * normalmap.x + binormal * normalmap.y + normal * normalmap.z, normaldepth)) * side; + //normal = normalmap; #endif normal = normalize(normal); @@ -1089,16 +1531,31 @@ FRAGMENT_SHADER_CODE vec3 diffuse_light = vec3(0.0, 0.0, 0.0); vec3 ambient_light = vec3(0.0, 0.0, 0.0); - vec3 eye_position = -normalize(vertex_interp); + vec3 eye_position = view; + +#if !defined(USE_SHADOW_TO_OPACITY) -#ifdef ALPHA_SCISSOR_USED +#if defined(ALPHA_SCISSOR_USED) if (alpha < alpha_scissor) { discard; } -#endif +#endif // ALPHA_SCISSOR_USED + +#ifdef USE_DEPTH_PREPASS + if (alpha < 0.1) { + discard; + } +#endif // USE_DEPTH_PREPASS + +#endif // !USE_SHADOW_TO_OPACITY #ifdef BASE_PASS //none + +#ifdef AMBIENT_LIGHT_DISABLED + ambient_light = vec3(0.0, 0.0, 0.0); +#else + #ifdef USE_RADIANCE_MAP vec3 ref_vec = reflect(-eye_position, N); @@ -1107,7 +1564,6 @@ FRAGMENT_SHADER_CODE ref_vec.z *= -1.0; specular_light = textureCubeLod(radiance_map, ref_vec, roughness * RADIANCE_MAX_LOD).xyz * bg_energy; - { vec3 ambient_dir = normalize((radiance_inverse_xform * vec4(normal, 0.0)).xyz); vec3 env_ambient = textureCubeLod(radiance_map, ambient_dir, RADIANCE_MAX_LOD).xyz * bg_energy; @@ -1118,11 +1574,131 @@ FRAGMENT_SHADER_CODE #else ambient_light = ambient_color.rgb; + specular_light = bg_color.rgb * bg_energy; #endif +#endif // AMBIENT_LIGHT_DISABLED ambient_light *= ambient_energy; +#if defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2) + + vec4 ambient_accum = vec4(0.0); + vec4 reflection_accum = vec4(0.0); + +#ifdef USE_REFLECTION_PROBE1 + + reflection_process(reflection_probe1, +#ifdef USE_VERTEX_LIGHTING + refprobe1_reflection_normal_blend.rgb, +#ifndef USE_LIGHTMAP + refprobe1_ambient_normal, +#endif + refprobe1_reflection_normal_blend.a, +#else + normal_interp, vertex_interp, refprobe1_local_matrix, + refprobe1_use_box_project, refprobe1_box_extents, refprobe1_box_offset, +#endif + refprobe1_exterior, refprobe1_intensity, refprobe1_ambient, roughness, + ambient_light, specular_light, reflection_accum, ambient_accum); + +#endif // USE_REFLECTION_PROBE1 + +#ifdef USE_REFLECTION_PROBE2 + + reflection_process(reflection_probe2, +#ifdef USE_VERTEX_LIGHTING + refprobe2_reflection_normal_blend.rgb, +#ifndef USE_LIGHTMAP + refprobe2_ambient_normal, +#endif + refprobe2_reflection_normal_blend.a, +#else + normal_interp, vertex_interp, refprobe2_local_matrix, + refprobe2_use_box_project, refprobe2_box_extents, refprobe2_box_offset, +#endif + refprobe2_exterior, refprobe2_intensity, refprobe2_ambient, roughness, + ambient_light, specular_light, reflection_accum, ambient_accum); + +#endif // USE_REFLECTION_PROBE2 + + if (reflection_accum.a > 0.0) { + specular_light = reflection_accum.rgb / reflection_accum.a; + } + +#ifndef USE_LIGHTMAP + if (ambient_accum.a > 0.0) { + ambient_light = ambient_accum.rgb / ambient_accum.a; + } +#endif + +#endif // defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2) + + // environment BRDF approximation + + { + +#if defined(DIFFUSE_TOON) + //simplify for toon, as + specular_light *= specular * metallic * albedo * 2.0; +#else + + // scales the specular reflections, needs to be be computed before lighting happens, + // but after environment and reflection probes are added + //TODO: this curve is not really designed for gammaspace, should be adjusted + const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); + const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04); + vec4 r = roughness * c0 + c1; + float ndotv = clamp(dot(normal, eye_position), 0.0, 1.0); + float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y; + vec2 env = vec2(-1.04, 1.04) * a004 + r.zw; + + vec3 f0 = F0(metallic, specular, albedo); + specular_light *= env.x * f0 + env.y; + +#endif + } + +#ifdef USE_LIGHTMAP + //ambient light will come entirely from lightmap is lightmap is used + ambient_light = texture2D(lightmap, uv2_interp).rgb * lightmap_energy; +#endif + +#ifdef USE_LIGHTMAP_CAPTURE + { + vec3 cone_dirs[12] = vec3[]( + vec3(0.0, 0.0, 1.0), + vec3(0.866025, 0.0, 0.5), + vec3(0.267617, 0.823639, 0.5), + vec3(-0.700629, 0.509037, 0.5), + vec3(-0.700629, -0.509037, 0.5), + vec3(0.267617, -0.823639, 0.5), + vec3(0.0, 0.0, -1.0), + vec3(0.866025, 0.0, -0.5), + vec3(0.267617, 0.823639, -0.5), + vec3(-0.700629, 0.509037, -0.5), + vec3(-0.700629, -0.509037, -0.5), + vec3(0.267617, -0.823639, -0.5)); + + vec3 local_normal = normalize(camera_matrix * vec4(normal, 0.0)).xyz; + vec4 captured = vec4(0.0); + float sum = 0.0; + for (int i = 0; i < 12; i++) { + float amount = max(0.0, dot(local_normal, cone_dirs[i])); //not correct, but creates a nice wrap around effect + captured += lightmap_captures[i] * amount; + sum += amount; + } + + captured /= sum; + + if (lightmap_capture_sky) { + ambient_light = mix(ambient_light, captured.rgb, captured.a); + } else { + ambient_light = captured.rgb; + } + } +#endif + #endif //BASE PASS // @@ -1142,20 +1718,26 @@ FRAGMENT_SHADER_CODE float light_length = length(light_vec); float normalized_distance = light_length / light_range; + if (normalized_distance < 1.0) { - float omni_attenuation = pow(1.0 - normalized_distance, light_attenuation.w); + float omni_attenuation = pow(1.0 - normalized_distance, light_attenuation); - light_att = vec3(omni_attenuation); + light_att = vec3(omni_attenuation); + } else { + light_att = vec3(0.0); + } L = normalize(light_vec); #endif +#if !defined(SHADOWS_DISABLED) + #ifdef USE_SHADOW { - highp vec3 splane = shadow_coord.xyz; - float shadow_len = length(splane); + highp vec4 splane = shadow_coord; + float shadow_len = length(splane.xyz); - splane = normalize(splane); + splane.xyz = normalize(splane.xyz); vec4 clamp_rect = light_clamp; @@ -1172,13 +1754,16 @@ FRAGMENT_SHADER_CODE splane.z = shadow_len / light_range; splane.xy = clamp_rect.xy + splane.xy * clamp_rect.zw; + splane.w = 1.0; - float shadow = sample_shadow(light_shadow_atlas, splane.xy, splane.z); + float shadow = sample_shadow(light_shadow_atlas, splane); - light_att *= shadow; + light_att *= mix(shadow_color.rgb, vec3(1.0), shadow); } #endif +#endif //SHADOWS_DISABLED + #endif //type omni #ifdef LIGHT_MODE_DIRECTIONAL @@ -1189,7 +1774,124 @@ FRAGMENT_SHADER_CODE #endif float depth_z = -vertex.z; +#if !defined(SHADOWS_DISABLED) + #ifdef USE_SHADOW + +#ifdef USE_VERTEX_LIGHTING + //compute shadows in a mobile friendly way + +#ifdef LIGHT_USE_PSSM4 + //take advantage of prefetch + float shadow1 = sample_shadow(light_directional_shadow, shadow_coord); + float shadow2 = sample_shadow(light_directional_shadow, shadow_coord2); + float shadow3 = sample_shadow(light_directional_shadow, shadow_coord3); + float shadow4 = sample_shadow(light_directional_shadow, shadow_coord4); + + if (depth_z < light_split_offsets.w) { + float pssm_fade = 0.0; + float shadow_att = 1.0; +#ifdef LIGHT_USE_PSSM_BLEND + float shadow_att2 = 1.0; + float pssm_blend = 0.0; + bool use_blend = true; +#endif + if (depth_z < light_split_offsets.y) { + if (depth_z < light_split_offsets.x) { + shadow_att = shadow1; + +#ifdef LIGHT_USE_PSSM_BLEND + shadow_att2 = shadow2; + + pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); +#endif + } else { + shadow_att = shadow2; + +#ifdef LIGHT_USE_PSSM_BLEND + shadow_att2 = shadow3; + + pssm_blend = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); +#endif + } + } else { + if (depth_z < light_split_offsets.z) { + + shadow_att = shadow3; + +#if defined(LIGHT_USE_PSSM_BLEND) + shadow_att2 = shadow4; + pssm_blend = smoothstep(light_split_offsets.y, light_split_offsets.z, depth_z); +#endif + + } else { + + shadow_att = shadow4; + pssm_fade = smoothstep(light_split_offsets.z, light_split_offsets.w, depth_z); + +#if defined(LIGHT_USE_PSSM_BLEND) + use_blend = false; +#endif + } + } +#if defined(LIGHT_USE_PSSM_BLEND) + if (use_blend) { + shadow_att = mix(shadow_att, shadow_att2, pssm_blend); + } +#endif + light_att *= mix(shadow_color.rgb, vec3(1.0), shadow_att); + } + +#endif //LIGHT_USE_PSSM4 + +#ifdef LIGHT_USE_PSSM2 + + //take advantage of prefetch + float shadow1 = sample_shadow(light_directional_shadow, shadow_coord); + float shadow2 = sample_shadow(light_directional_shadow, shadow_coord2); + + if (depth_z < light_split_offsets.y) { + float shadow_att = 1.0; + float pssm_fade = 0.0; + +#ifdef LIGHT_USE_PSSM_BLEND + float shadow_att2 = 1.0; + float pssm_blend = 0.0; + bool use_blend = true; +#endif + if (depth_z < light_split_offsets.x) { + float pssm_fade = 0.0; + shadow_att = shadow1; + +#ifdef LIGHT_USE_PSSM_BLEND + shadow_att2 = shadow2; + pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); +#endif + } else { + + shadow_att = shadow2; + pssm_fade = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); +#ifdef LIGHT_USE_PSSM_BLEND + use_blend = false; +#endif + } +#ifdef LIGHT_USE_PSSM_BLEND + if (use_blend) { + shadow_att = mix(shadow_att, shadow_att2, pssm_blend); + } +#endif + light_att *= mix(shadow_color.rgb, vec3(1.0), shadow_att); + } + +#endif //LIGHT_USE_PSSM2 + +#if !defined(LIGHT_USE_PSSM4) && !defined(LIGHT_USE_PSSM2) + + light_att *= mix(shadow_color.rgb, vec3(1.0), sample_shadow(light_directional_shadow, shadow_coord)); +#endif //orthogonal + +#else //fragment version of pssm + { #ifdef LIGHT_USE_PSSM4 if (depth_z < light_split_offsets.w) { @@ -1199,34 +1901,31 @@ FRAGMENT_SHADER_CODE if (depth_z < light_split_offsets.x) { #endif //pssm2 - vec3 pssm_coord; + highp vec4 pssm_coord; float pssm_fade = 0.0; #ifdef LIGHT_USE_PSSM_BLEND float pssm_blend; - vec3 pssm_coord2; + highp vec4 pssm_coord2; bool use_blend = true; #endif #ifdef LIGHT_USE_PSSM4 + if (depth_z < light_split_offsets.y) { if (depth_z < light_split_offsets.x) { - highp vec4 splane = shadow_coord; - pssm_coord = splane.xyz / splane.w; + pssm_coord = shadow_coord; #ifdef LIGHT_USE_PSSM_BLEND - splane = shadow_coord2; - pssm_coord2 = splane.xyz / splane.w; + pssm_coord2 = shadow_coord2; pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); #endif } else { - highp vec4 splane = shadow_coord2; - pssm_coord = splane.xyz / splane.w; + pssm_coord = shadow_coord2; #ifdef LIGHT_USE_PSSM_BLEND - splane = shadow_coord3; - pssm_coord2 = splane.xyz / splane.w; + pssm_coord2 = shadow_coord3; pssm_blend = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); #endif @@ -1234,19 +1933,16 @@ FRAGMENT_SHADER_CODE } else { if (depth_z < light_split_offsets.z) { - highp vec4 splane = shadow_coord3; - pssm_coord = splane.xyz / splane.w; + pssm_coord = shadow_coord3; #if defined(LIGHT_USE_PSSM_BLEND) - splane = shadow_coord4; - pssm_coord2 = splane.xyz / splane.w; + pssm_coord2 = shadow_coord4; pssm_blend = smoothstep(light_split_offsets.y, light_split_offsets.z, depth_z); #endif } else { - highp vec4 splane = shadow_coord4; - pssm_coord = splane.xyz / splane.w; + pssm_coord = shadow_coord4; pssm_fade = smoothstep(light_split_offsets.z, light_split_offsets.w, depth_z); #if defined(LIGHT_USE_PSSM_BLEND) @@ -1260,17 +1956,15 @@ FRAGMENT_SHADER_CODE #ifdef LIGHT_USE_PSSM2 if (depth_z < light_split_offsets.x) { - highp vec4 splane = shadow_coord; - pssm_coord = splane.xyz / splane.w; + pssm_coord = shadow_coord; #ifdef LIGHT_USE_PSSM_BLEND - splane = shadow_coord2; - pssm_coord2 = splane.xyz / splane.w; + pssm_coord2 = shadow_coord2; pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); #endif } else { - highp vec4 splane = shadow_coord2; - pssm_coord = splane.xyz / splane.w; + + pssm_coord = shadow_coord2; pssm_fade = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); #ifdef LIGHT_USE_PSSM_BLEND use_blend = false; @@ -1281,24 +1975,27 @@ FRAGMENT_SHADER_CODE #if !defined(LIGHT_USE_PSSM4) && !defined(LIGHT_USE_PSSM2) { - highp vec4 splane = shadow_coord; - pssm_coord = splane.xyz / splane.w; + pssm_coord = shadow_coord; } #endif - float shadow = sample_shadow(light_directional_shadow, pssm_coord.xy, pssm_coord.z); + float shadow = sample_shadow(light_directional_shadow, pssm_coord); #ifdef LIGHT_USE_PSSM_BLEND if (use_blend) { - shadow = mix(shadow, sample_shadow(light_directional_shadow, pssm_coord2.xy, pssm_coord2.z), pssm_blend); + shadow = mix(shadow, sample_shadow(light_directional_shadow, pssm_coord2), pssm_blend); } #endif - light_att *= shadow; + light_att *= mix(shadow_color.rgb, vec3(1.0), shadow); } } +#endif //use vertex lighting + #endif //use shadow +#endif // SHADOWS_DISABLED + #endif #ifdef LIGHT_MODE_SPOT @@ -1311,40 +2008,62 @@ FRAGMENT_SHADER_CODE float light_length = length(light_rel_vec); float normalized_distance = light_length / light_range; - float spot_attenuation = pow(1.0 - normalized_distance, light_attenuation.w); - vec3 spot_dir = light_direction; - - float spot_cutoff = light_spot_angle; + if (normalized_distance < 1.0) { + float spot_attenuation = pow(1.0 - normalized_distance, light_attenuation); + vec3 spot_dir = light_direction; - float scos = max(dot(-normalize(light_rel_vec), spot_dir), spot_cutoff); - float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_cutoff)); + float spot_cutoff = light_spot_angle; + float angle = dot(-normalize(light_rel_vec), spot_dir); - spot_attenuation *= 1.0 - pow(spot_rim, light_spot_attenuation); + if (angle > spot_cutoff) { + float scos = max(angle, spot_cutoff); + float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_cutoff)); + spot_attenuation *= 1.0 - pow(spot_rim, light_spot_attenuation); - light_att = vec3(spot_attenuation); + light_att = vec3(spot_attenuation); + } else { + light_att = vec3(0.0); + } + } else { + light_att = vec3(0.0); + } L = normalize(light_rel_vec); #endif +#if !defined(SHADOWS_DISABLED) + #ifdef USE_SHADOW { highp vec4 splane = shadow_coord; - splane.xyz /= splane.w; - float shadow = sample_shadow(light_shadow_atlas, splane.xy, splane.z); - light_att *= shadow; + float shadow = sample_shadow(light_shadow_atlas, splane); + light_att *= mix(shadow_color.rgb, vec3(1.0), shadow); } #endif -#endif +#endif // SHADOWS_DISABLED + +#endif // LIGHT_MODE_SPOT #ifdef USE_VERTEX_LIGHTING //vertex lighting - specular_light += specular_interp * specular * light_att; + specular_light += specular_interp * specular_blob_intensity * light_att; diffuse_light += diffuse_interp * albedo * light_att; + // Same as above, needed for VERTEX_LIGHTING or else lights are too bright + const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); + const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04); + vec4 r = roughness * c0 + c1; + float ndotv = clamp(dot(normal, eye_position), 0.0, 1.0); + float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y; + vec2 env = vec2(-1.04, 1.04) * a004 + r.zw; + + vec3 f0 = F0(metallic, specular, albedo); + specular_light *= env.x * f0 + env.y; + #else //fragment lighting light_compute( @@ -1357,22 +2076,42 @@ FRAGMENT_SHADER_CODE light_att, albedo, transmission, - specular * light_specular, + specular_blob_intensity * light_specular, roughness, metallic, + specular, rim, rim_tint, clearcoat, clearcoat_gloss, anisotropy, diffuse_light, - specular_light); + specular_light, + alpha); #endif //vertex lighting #endif //USE_LIGHTING //compute and merge +#ifdef USE_SHADOW_TO_OPACITY + + alpha = min(alpha, clamp(length(ambient_light), 0.0, 1.0)); + +#if defined(ALPHA_SCISSOR_USED) + if (alpha < alpha_scissor) { + discard; + } +#endif // ALPHA_SCISSOR_USED + +#ifdef USE_DEPTH_PREPASS + if (alpha < 0.1) { + discard; + } +#endif // USE_DEPTH_PREPASS + +#endif // !USE_SHADOW_TO_OPACITY + #ifndef RENDER_DEPTH #ifdef SHADELESS @@ -1392,25 +2131,79 @@ FRAGMENT_SHADER_CODE diffuse_light *= 1.0 - metallic; ambient_light *= 1.0 - metallic; - // environment BRDF approximation + gl_FragColor = vec4(ambient_light + diffuse_light + specular_light, alpha); + + //add emission if in base pass +#ifdef BASE_PASS + gl_FragColor.rgb += emission; +#endif + // gl_FragColor = vec4(normal, 1.0); + +//apply fog +#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) + +#if defined(USE_VERTEX_LIGHTING) + +#if defined(BASE_PASS) + gl_FragColor.rgb = mix(gl_FragColor.rgb, fog_interp.rgb, fog_interp.a); +#else + gl_FragColor.rgb *= (1.0 - fog_interp.a); +#endif // BASE_PASS + +#else //pixel based fog + float fog_amount = 0.0; + +#ifdef LIGHT_MODE_DIRECTIONAL + + vec3 fog_color = mix(fog_color_base.rgb, fog_sun_color_amount.rgb, fog_sun_color_amount.a * pow(max(dot(eye_position, light_direction), 0.0), 8.0)); +#else + vec3 fog_color = fog_color_base.rgb; +#endif + +#ifdef FOG_DEPTH_ENABLED - // TODO shadeless { - const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); - const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04); - vec4 r = roughness * c0 + c1; - float ndotv = clamp(dot(normal, eye_position), 0.0, 1.0); - float a004 = min(r.x * r.x, exp2(-9.28 * ndotv)) * r.x + r.y; - vec2 AB = vec2(-1.04, 1.04) * a004 + r.zw; - vec3 specular_color = metallic_to_specular_color(metallic, specular, albedo); - specular_light *= AB.x * specular_color + AB.y; + float fog_z = smoothstep(fog_depth_begin, fog_max_distance, length(vertex)); + + fog_amount = pow(fog_z, fog_depth_curve) * fog_color_base.a; + + if (fog_transmit_enabled) { + vec3 total_light = gl_FragColor.rgb; + float transmit = pow(fog_z, fog_transmit_curve); + fog_color = mix(max(total_light, fog_color), fog_color, transmit); + } } +#endif - gl_FragColor = vec4(ambient_light + diffuse_light + specular_light, alpha); - // gl_FragColor = vec4(normal, 1.0); +#ifdef FOG_HEIGHT_ENABLED + { + float y = (camera_matrix * vec4(vertex, 1.0)).y; + fog_amount = max(fog_amount, pow(smoothstep(fog_height_min, fog_height_max, y), fog_height_curve)); + } +#endif + +#if defined(BASE_PASS) + gl_FragColor.rgb = mix(gl_FragColor.rgb, fog_color, fog_amount); +#else + gl_FragColor.rgb *= (1.0 - fog_amount); +#endif // BASE_PASS + +#endif //use vertex lit + +#endif // defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) #endif //unshaded -#endif // not RENDER_DEPTH +#else // not RENDER_DEPTH +//depth render +#ifdef USE_RGBA_SHADOWS + + highp float depth = ((position_interp.z / position_interp.w) + 1.0) * 0.5 + 0.0; // bias + highp vec4 comp = fract(depth * vec4(255.0 * 255.0 * 255.0, 255.0 * 255.0, 255.0, 1.0)); + comp -= comp.xxyz * vec4(0.0, 1.0 / 255.0, 1.0 / 255.0, 1.0 / 255.0); + gl_FragColor = comp; + +#endif +#endif } diff --git a/drivers/gles2/shaders/stdlib.glsl b/drivers/gles2/shaders/stdlib.glsl index 6bc81a22d8..9c74418743 100644 --- a/drivers/gles2/shaders/stdlib.glsl +++ b/drivers/gles2/shaders/stdlib.glsl @@ -35,3 +35,386 @@ highp vec4 texel2DFetch(highp sampler2D tex, ivec2 size, ivec2 coord) { return texture2DLod(tex, vec2(x_coord, y_coord), 0.0); } + +#if defined(SINH_USED) + +highp float sinh(highp float x) { + return 0.5 * (exp(x) - exp(-x)); +} + +highp vec2 sinh(highp vec2 x) { + return 0.5 * vec2(exp(x.x) - exp(-x.x), exp(x.y) - exp(-x.y)); +} + +highp vec3 sinh(highp vec3 x) { + return 0.5 * vec3(exp(x.x) - exp(-x.x), exp(x.y) - exp(-x.y), exp(x.z) - exp(-x.z)); +} + +highp vec4 sinh(highp vec4 x) { + return 0.5 * vec4(exp(x.x) - exp(-x.x), exp(x.y) - exp(-x.y), exp(x.z) - exp(-x.z), exp(x.w) - exp(-x.w)); +} + +#endif + +#if defined(COSH_USED) + +highp float cosh(highp float x) { + return 0.5 * (exp(x) + exp(-x)); +} + +highp vec2 cosh(highp vec2 x) { + return 0.5 * vec2(exp(x.x) + exp(-x.x), exp(x.y) + exp(-x.y)); +} + +highp vec3 cosh(highp vec3 x) { + return 0.5 * vec3(exp(x.x) + exp(-x.x), exp(x.y) + exp(-x.y), exp(x.z) + exp(-x.z)); +} + +highp vec4 cosh(highp vec4 x) { + return 0.5 * vec4(exp(x.x) + exp(-x.x), exp(x.y) + exp(-x.y), exp(x.z) + exp(-x.z), exp(x.w) + exp(-x.w)); +} + +#endif + +#if defined(TANH_USED) + +highp float tanh(highp float x) { + highp float exp2x = exp(2.0 * x); + return (exp2x - 1.0) / (exp2x + 1.0); +} + +highp vec2 tanh(highp vec2 x) { + highp float exp2x = exp(2.0 * x.x); + highp float exp2y = exp(2.0 * x.y); + return vec2((exp2x - 1.0) / (exp2x + 1.0), (exp2y - 1.0) / (exp2y + 1.0)); +} + +highp vec3 tanh(highp vec3 x) { + highp float exp2x = exp(2.0 * x.x); + highp float exp2y = exp(2.0 * x.y); + highp float exp2z = exp(2.0 * x.z); + return vec3((exp2x - 1.0) / (exp2x + 1.0), (exp2y - 1.0) / (exp2y + 1.0), (exp2z - 1.0) / (exp2z + 1.0)); +} + +highp vec4 tanh(highp vec4 x) { + highp float exp2x = exp(2.0 * x.x); + highp float exp2y = exp(2.0 * x.y); + highp float exp2z = exp(2.0 * x.z); + highp float exp2w = exp(2.0 * x.w); + return vec4((exp2x - 1.0) / (exp2x + 1.0), (exp2y - 1.0) / (exp2y + 1.0), (exp2z - 1.0) / (exp2z + 1.0), (exp2w - 1.0) / (exp2w + 1.0)); +} + +#endif + +#if defined(ASINH_USED) + +highp float asinh(highp float x) { + return sign(x) * log(abs(x) + sqrt(1.0 + x * x)); +} + +highp vec2 asinh(highp vec2 x) { + return vec2(sign(x.x) * log(abs(x.x) + sqrt(1.0 + x.x * x.x)), sign(x.y) * log(abs(x.y) + sqrt(1.0 + x.y * x.y))); +} + +highp vec3 asinh(highp vec3 x) { + return vec3(sign(x.x) * log(abs(x.x) + sqrt(1.0 + x.x * x.x)), sign(x.y) * log(abs(x.y) + sqrt(1.0 + x.y * x.y)), sign(x.z) * log(abs(x.z) + sqrt(1.0 + x.z * x.z))); +} + +highp vec4 asinh(highp vec4 x) { + return vec4(sign(x.x) * log(abs(x.x) + sqrt(1.0 + x.x * x.x)), sign(x.y) * log(abs(x.y) + sqrt(1.0 + x.y * x.y)), sign(x.z) * log(abs(x.z) + sqrt(1.0 + x.z * x.z)), sign(x.w) * log(abs(x.w) + sqrt(1.0 + x.w * x.w))); +} + +#endif + +#if defined(ACOSH_USED) + +highp float acosh(highp float x) { + return log(x + sqrt(x * x - 1.0)); +} + +highp vec2 acosh(highp vec2 x) { + return vec2(log(x.x + sqrt(x.x * x.x - 1.0)), log(x.y + sqrt(x.y * x.y - 1.0))); +} + +highp vec3 acosh(highp vec3 x) { + return vec3(log(x.x + sqrt(x.x * x.x - 1.0)), log(x.y + sqrt(x.y * x.y - 1.0)), log(x.z + sqrt(x.z * x.z - 1.0))); +} + +highp vec4 acosh(highp vec4 x) { + return vec4(log(x.x + sqrt(x.x * x.x - 1.0)), log(x.y + sqrt(x.y * x.y - 1.0)), log(x.z + sqrt(x.z * x.z - 1.0)), log(x.w + sqrt(x.w * x.w - 1.0))); +} + +#endif + +#if defined(ATANH_USED) + +highp float atanh(highp float x) { + return 0.5 * log((1.0 + x) / (1.0 - x)); +} + +highp vec2 atanh(highp vec2 x) { + return 0.5 * vec2(log((1.0 + x.x) / (1.0 - x.x)), log((1.0 + x.y) / (1.0 - x.y))); +} + +highp vec3 atanh(highp vec3 x) { + return 0.5 * vec3(log((1.0 + x.x) / (1.0 - x.x)), log((1.0 + x.y) / (1.0 - x.y)), log((1.0 + x.z) / (1.0 - x.z))); +} + +highp vec4 atanh(highp vec4 x) { + return 0.5 * vec4(log((1.0 + x.x) / (1.0 - x.x)), log((1.0 + x.y) / (1.0 - x.y)), log((1.0 + x.z) / (1.0 - x.z)), log((1.0 + x.w) / (1.0 - x.w))); +} + +#endif + +#if defined(ROUND_USED) + +highp float round(highp float x) { + return floor(x + 0.5); +} + +highp vec2 round(highp vec2 x) { + return floor(x + vec2(0.5)); +} + +highp vec3 round(highp vec3 x) { + return floor(x + vec3(0.5)); +} + +highp vec4 round(highp vec4 x) { + return floor(x + vec4(0.5)); +} + +#endif + +#if defined(ROUND_EVEN_USED) + +highp float roundEven(highp float x) { + highp float t = x + 0.5; + highp float f = floor(t); + highp float r; + if (t == f) { + if (x > 0) + r = f - mod(f, 2); + else + r = f + mod(f, 2); + } else + r = f; + return r; +} + +highp vec2 roundEven(highp vec2 x) { + return vec2(roundEven(x.x), roundEven(x.y)); +} + +highp vec3 roundEven(highp vec3 x) { + return vec3(roundEven(x.x), roundEven(x.y), roundEven(x.z)); +} + +highp vec4 roundEven(highp vec4 x) { + return vec4(roundEven(x.x), roundEven(x.y), roundEven(x.z), roundEven(x.w)); +} + +#endif + +#if defined(IS_INF_USED) + +bool isinf(highp float x) { + return (2 * x == x) && (x != 0); +} + +bvec2 isinf(highp vec2 x) { + return bvec2((2 * x.x == x.x) && (x.x != 0), (2 * x.y == x.y) && (x.y != 0)); +} + +bvec3 isinf(highp vec3 x) { + return bvec3((2 * x.x == x.x) && (x.x != 0), (2 * x.y == x.y) && (x.y != 0), (2 * x.z == x.z) && (x.z != 0)); +} + +bvec4 isinf(highp vec4 x) { + return bvec4((2 * x.x == x.x) && (x.x != 0), (2 * x.y == x.y) && (x.y != 0), (2 * x.z == x.z) && (x.z != 0), (2 * x.w == x.w) && (x.w != 0)); +} + +#endif + +#if defined(IS_NAN_USED) + +bool isnan(highp float x) { + return x != x; +} + +bvec2 isnan(highp vec2 x) { + return bvec2(x.x != x.x, x.y != x.y); +} + +bvec3 isnan(highp vec3 x) { + return bvec3(x.x != x.x, x.y != x.y, x.z != x.z); +} + +bvec4 isnan(highp vec4 x) { + return bvec4(x.x != x.x, x.y != x.y, x.z != x.z, x.w != x.w); +} + +#endif + +#if defined(TRUNC_USED) + +highp float trunc(highp float x) { + return x < 0 ? -floor(-x) : floor(x); +} + +highp vec2 trunc(highp vec2 x) { + return vec2(x.x < 0 ? -floor(-x.x) : floor(x.x), x.y < 0 ? -floor(-x.y) : floor(x.y)); +} + +highp vec3 trunc(highp vec3 x) { + return vec3(x.x < 0 ? -floor(-x.x) : floor(x.x), x.y < 0 ? -floor(-x.y) : floor(x.y), x.z < 0 ? -floor(-x.z) : floor(x.z)); +} + +highp vec4 trunc(highp vec4 x) { + return vec4(x.x < 0 ? -floor(-x.x) : floor(x.x), x.y < 0 ? -floor(-x.y) : floor(x.y), x.z < 0 ? -floor(-x.z) : floor(x.z), x.w < 0 ? -floor(-x.w) : floor(x.w)); +} + +#endif + +#if defined(DETERMINANT_USED) + +highp float determinant(highp mat2 m) { + return m[0].x * m[1].y - m[1].x * m[0].y; +} + +highp float determinant(highp mat3 m) { + return m[0].x * (m[1].y * m[2].z - m[2].y * m[1].z) - m[1].x * (m[0].y * m[2].z - m[2].y * m[0].z) + m[2].x * (m[0].y * m[1].z - m[1].y * m[0].z); +} + +highp float determinant(highp mat4 m) { + highp float s00 = m[2].z * m[3].w - m[3].z * m[2].w; + highp float s01 = m[2].y * m[3].w - m[3].y * m[2].w; + highp float s02 = m[2].y * m[3].z - m[3].y * m[2].z; + highp float s03 = m[2].x * m[3].w - m[3].x * m[2].w; + highp float s04 = m[2].x * m[3].z - m[3].x * m[2].z; + highp float s05 = m[2].x * m[3].y - m[3].x * m[2].y; + highp vec4 c = vec4((m[1].y * s00 - m[1].z * s01 + m[1].w * s02), -(m[1].x * s00 - m[1].z * s03 + m[1].w * s04), (m[1].x * s01 - m[1].y * s03 + m[1].w * s05), -(m[1].x * s02 - m[1].y * s04 + m[1].z * s05)); + return m[0].x * c.x + m[0].y * c.y + m[0].z * c.z + m[0].w * c.w; +} + +#endif + +#if defined(INVERSE_USED) + +highp mat2 inverse(highp mat2 m) { + highp float d = 1.0 / (m[0].x * m[1].y - m[1].x * m[0].y); + return mat2( + vec2(m[1].y * d, -m[0].y * d), + vec2(-m[1].x * d, m[0].x * d)); +} + +highp mat3 inverse(highp mat3 m) { + highp float d = 1.0 / (m[0].x * (m[1].y * m[2].z - m[2].y * m[1].z) - m[1].x * (m[0].y * m[2].z - m[2].y * m[0].z) + m[2].x * (m[0].y * m[1].z - m[1].y * m[0].z)); + return mat3( + vec3((m[1].y * m[2].z - m[2].y * m[1].z), -(m[1].x * m[2].z - m[2].x * m[1].z), (m[1].x * m[2].y - m[2].x * m[1].y)) * d, + vec3(-(m[0].y * m[2].z - m[2].y * m[0].z), (m[0].x * m[2].z - m[2].x * m[0].z), -(m[0].x * m[2].y - m[2].x * m[0].y)) * d, + vec3((m[0].y * m[1].z - m[1].y * m[0].z), -(m[0].x * m[1].z - m[1].x * m[0].z), (m[0].x * m[1].y - m[1].x * m[0].y)) * d); +} + +highp mat4 inverse(highp mat4 m) { + highp float c00 = m[2].z * m[3].w - m[3].z * m[2].w; + highp float c02 = m[1].z * m[3].w - m[3].z * m[1].w; + highp float c03 = m[1].z * m[2].w - m[2].z * m[1].w; + + highp float c04 = m[2].y * m[3].w - m[3].y * m[2].w; + highp float c06 = m[1].y * m[3].w - m[3].y * m[1].w; + highp float c07 = m[1].y * m[2].w - m[2].y * m[1].w; + + highp float c08 = m[2].y * m[3].z - m[3].y * m[2].z; + highp float c10 = m[1].y * m[3].z - m[3].y * m[1].z; + highp float c11 = m[1].y * m[2].z - m[2].y * m[1].z; + + highp float c12 = m[2].x * m[3].w - m[3].x * m[2].w; + highp float c14 = m[1].x * m[3].w - m[3].x * m[1].w; + highp float c15 = m[1].x * m[2].w - m[2].x * m[1].w; + + highp float c16 = m[2].x * m[3].z - m[3].x * m[2].z; + highp float c18 = m[1].x * m[3].z - m[3].x * m[1].z; + highp float c19 = m[1].x * m[2].z - m[2].x * m[1].z; + + highp float c20 = m[2].x * m[3].y - m[3].x * m[2].y; + highp float c22 = m[1].x * m[3].y - m[3].x * m[1].y; + highp float c23 = m[1].x * m[2].y - m[2].x * m[1].y; + + vec4 f0 = vec4(c00, c00, c02, c03); + vec4 f1 = vec4(c04, c04, c06, c07); + vec4 f2 = vec4(c08, c08, c10, c11); + vec4 f3 = vec4(c12, c12, c14, c15); + vec4 f4 = vec4(c16, c16, c18, c19); + vec4 f5 = vec4(c20, c20, c22, c23); + + vec4 v0 = vec4(m[1].x, m[0].x, m[0].x, m[0].x); + vec4 v1 = vec4(m[1].y, m[0].y, m[0].y, m[0].y); + vec4 v2 = vec4(m[1].z, m[0].z, m[0].z, m[0].z); + vec4 v3 = vec4(m[1].w, m[0].w, m[0].w, m[0].w); + + vec4 inv0 = vec4(v1 * f0 - v2 * f1 + v3 * f2); + vec4 inv1 = vec4(v0 * f0 - v2 * f3 + v3 * f4); + vec4 inv2 = vec4(v0 * f1 - v1 * f3 + v3 * f5); + vec4 inv3 = vec4(v0 * f2 - v1 * f4 + v2 * f5); + + vec4 sa = vec4(+1, -1, +1, -1); + vec4 sb = vec4(-1, +1, -1, +1); + + mat4 inv = mat4(inv0 * sa, inv1 * sb, inv2 * sa, inv3 * sb); + + vec4 r0 = vec4(inv[0].x, inv[1].x, inv[2].x, inv[3].x); + vec4 d0 = vec4(m[0] * r0); + + highp float d1 = (d0.x + d0.y) + (d0.z + d0.w); + highp float d = 1.0 / d1; + + return inv * d; +} + +#endif + +#ifndef USE_GLES_OVER_GL + +#if defined(TRANSPOSE_USED) + +highp mat2 transpose(highp mat2 m) { + return mat2( + vec2(m[0].x, m[1].x), + vec2(m[0].y, m[1].y)); +} + +highp mat3 transpose(highp mat3 m) { + return mat3( + vec3(m[0].x, m[1].x, m[2].x), + vec3(m[0].y, m[1].y, m[2].y), + vec3(m[0].z, m[1].z, m[2].z)); +} + +#endif + +highp mat4 transpose(highp mat4 m) { + return mat4( + vec4(m[0].x, m[1].x, m[2].x, m[3].x), + vec4(m[0].y, m[1].y, m[2].y, m[3].y), + vec4(m[0].z, m[1].z, m[2].z, m[3].z), + vec4(m[0].w, m[1].w, m[2].w, m[3].w)); +} + +#if defined(OUTER_PRODUCT_USED) + +highp mat2 outerProduct(highp vec2 c, highp vec2 r) { + return mat2(c * r.x, c * r.y); +} + +highp mat3 outerProduct(highp vec3 c, highp vec3 r) { + return mat3(c * r.x, c * r.y, c * r.z); +} + +highp mat4 outerProduct(highp vec4 c, highp vec4 r) { + return mat4(c * r.x, c * r.y, c * r.z, c * r.w); +} + +#endif + +#endif diff --git a/drivers/gles2/shaders/tonemap.glsl b/drivers/gles2/shaders/tonemap.glsl index eae3b5a1ca..585d821626 100644 --- a/drivers/gles2/shaders/tonemap.glsl +++ b/drivers/gles2/shaders/tonemap.glsl @@ -1,66 +1,103 @@ /* clang-format off */ [vertex] -layout(location = 0) in highp vec4 vertex_attrib; +#ifdef USE_GLES_OVER_GL +#define lowp +#define mediump +#define highp +#else +precision highp float; +precision highp int; +#endif + +attribute vec2 vertex_attrib; // attrib:0 /* clang-format on */ -layout(location = 4) in vec2 uv_in; +attribute vec2 uv_in; // attrib:4 -out vec2 uv_interp; +varying vec2 uv_interp; void main() { + gl_Position = vec4(vertex_attrib, 0.0, 1.0); - gl_Position = vertex_attrib; uv_interp = uv_in; -#ifdef V_FLIP - uv_interp.y = 1.0 - uv_interp.y; -#endif } /* clang-format off */ [fragment] -#if !defined(GLES_OVER_GL) -precision mediump float; + +// texture2DLodEXT and textureCubeLodEXT are fragment shader specific. +// Do not copy these defines in the vertex section. +#ifndef USE_GLES_OVER_GL +#ifdef GL_EXT_shader_texture_lod +#extension GL_EXT_shader_texture_lod : enable +#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod) #endif +#endif // !USE_GLES_OVER_GL -in vec2 uv_interp; -/* clang-format on */ +#ifdef GL_ARB_shader_texture_lod +#extension GL_ARB_shader_texture_lod : enable +#endif -uniform highp sampler2D source; //texunit:0 +#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod) +#define texture2DLod(img, coord, lod) texture2D(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCube(img, coord, lod) +#endif -uniform float exposure; -uniform float white; +// Allows the use of bitshift operators for bicubic upscale +#ifdef GL_EXT_gpu_shader4 +#extension GL_EXT_gpu_shader4 : enable +#endif -#ifdef USE_AUTO_EXPOSURE +#ifdef USE_GLES_OVER_GL +#define lowp +#define mediump +#define highp +#else +#if defined(USE_HIGHP_PRECISION) +precision highp float; +precision highp int; +#else +precision mediump float; +precision mediump int; +#endif +#endif -uniform highp sampler2D source_auto_exposure; //texunit:1 -uniform highp float auto_exposure_grey; +#include "stdlib.glsl" -#endif +varying vec2 uv_interp; +/* clang-format on */ -#if defined(USE_GLOW_LEVEL1) || defined(USE_GLOW_LEVEL2) || defined(USE_GLOW_LEVEL3) || defined(USE_GLOW_LEVEL4) || defined(USE_GLOW_LEVEL5) || defined(USE_GLOW_LEVEL6) || defined(USE_GLOW_LEVEL7) +uniform highp sampler2D source; //texunit:0 -uniform highp sampler2D source_glow; //texunit:2 +#if defined(USE_GLOW_LEVEL1) || defined(USE_GLOW_LEVEL2) || defined(USE_GLOW_LEVEL3) || defined(USE_GLOW_LEVEL4) || defined(USE_GLOW_LEVEL5) || defined(USE_GLOW_LEVEL6) || defined(USE_GLOW_LEVEL7) +#define USING_GLOW // only use glow when at least one glow level is selected + +#ifdef USE_MULTI_TEXTURE_GLOW +uniform highp sampler2D source_glow1; //texunit:1 +uniform highp sampler2D source_glow2; //texunit:2 +uniform highp sampler2D source_glow3; //texunit:3 +uniform highp sampler2D source_glow4; //texunit:4 +uniform highp sampler2D source_glow5; //texunit:5 +uniform highp sampler2D source_glow6; //texunit:6 +uniform highp sampler2D source_glow7; //texunit:7 +#else +uniform highp sampler2D source_glow; //texunit:1 +#endif uniform highp float glow_intensity; - #endif #ifdef USE_BCS - uniform vec3 bcs; - #endif #ifdef USE_COLOR_CORRECTION - -uniform sampler2D color_correction; //texunit:3 - +uniform sampler2D color_correction; //texunit:2 #endif -layout(location = 0) out vec4 frag_color; - +#ifdef GL_EXT_gpu_shader4 #ifdef USE_GLOW_FILTER_BICUBIC - // w0, w1, w2, and w3 are the four cubic B-spline basis functions float w0(float a) { return (1.0 / 6.0) * (a * (a * (-a + 3.0) - 3.0) + 1.0); @@ -101,8 +138,10 @@ uniform ivec2 glow_texture_size; vec4 texture2D_bicubic(sampler2D tex, vec2 uv, int p_lod) { float lod = float(p_lod); vec2 tex_size = vec2(glow_texture_size >> p_lod); - vec2 pixel_size = 1.0 / tex_size; - uv = uv * tex_size + 0.5; + vec2 pixel_size = vec2(1.0) / tex_size; + + uv = uv * tex_size + vec2(0.5); + vec2 iuv = floor(uv); vec2 fuv = fract(uv); @@ -113,73 +152,97 @@ vec4 texture2D_bicubic(sampler2D tex, vec2 uv, int p_lod) { float h0y = h0(fuv.y); float h1y = h1(fuv.y); - vec2 p0 = (vec2(iuv.x + h0x, iuv.y + h0y) - 0.5) * pixel_size; - vec2 p1 = (vec2(iuv.x + h1x, iuv.y + h0y) - 0.5) * pixel_size; - vec2 p2 = (vec2(iuv.x + h0x, iuv.y + h1y) - 0.5) * pixel_size; - vec2 p3 = (vec2(iuv.x + h1x, iuv.y + h1y) - 0.5) * pixel_size; + vec2 p0 = (vec2(iuv.x + h0x, iuv.y + h0y) - vec2(0.5)) * pixel_size; + vec2 p1 = (vec2(iuv.x + h1x, iuv.y + h0y) - vec2(0.5)) * pixel_size; + vec2 p2 = (vec2(iuv.x + h0x, iuv.y + h1y) - vec2(0.5)) * pixel_size; + vec2 p3 = (vec2(iuv.x + h1x, iuv.y + h1y) - vec2(0.5)) * pixel_size; - return (g0(fuv.y) * (g0x * textureLod(tex, p0, lod) + g1x * textureLod(tex, p1, lod))) + - (g1(fuv.y) * (g0x * textureLod(tex, p2, lod) + g1x * textureLod(tex, p3, lod))); + return (g0(fuv.y) * (g0x * texture2DLod(tex, p0, lod) + g1x * texture2DLod(tex, p1, lod))) + + (g1(fuv.y) * (g0x * texture2DLod(tex, p2, lod) + g1x * texture2DLod(tex, p3, lod))); } #define GLOW_TEXTURE_SAMPLE(m_tex, m_uv, m_lod) texture2D_bicubic(m_tex, m_uv, m_lod) +#else //!USE_GLOW_FILTER_BICUBIC +#define GLOW_TEXTURE_SAMPLE(m_tex, m_uv, m_lod) texture2DLod(m_tex, m_uv, float(m_lod)) +#endif //USE_GLOW_FILTER_BICUBIC -#else +#else //!GL_EXT_gpu_shader4 +#define GLOW_TEXTURE_SAMPLE(m_tex, m_uv, m_lod) texture2DLod(m_tex, m_uv, float(m_lod)) +#endif //GL_EXT_gpu_shader4 -#define GLOW_TEXTURE_SAMPLE(m_tex, m_uv, m_lod) textureLod(m_tex, m_uv, float(m_lod)) +vec3 apply_glow(vec3 color, vec3 glow) { // apply glow using the selected blending mode +#ifdef USE_GLOW_REPLACE + color = glow; +#endif +#ifdef USE_GLOW_SCREEN + color = max((color + glow) - (color * glow), vec3(0.0)); #endif -vec3 tonemap_filmic(vec3 color, float white) { +#ifdef USE_GLOW_SOFTLIGHT + glow = glow * vec3(0.5) + vec3(0.5); - float A = 0.15; - float B = 0.50; - float C = 0.10; - float D = 0.20; - float E = 0.02; - float F = 0.30; - float W = 11.2; + color.r = (glow.r <= 0.5) ? (color.r - (1.0 - 2.0 * glow.r) * color.r * (1.0 - color.r)) : (((glow.r > 0.5) && (color.r <= 0.25)) ? (color.r + (2.0 * glow.r - 1.0) * (4.0 * color.r * (4.0 * color.r + 1.0) * (color.r - 1.0) + 7.0 * color.r)) : (color.r + (2.0 * glow.r - 1.0) * (sqrt(color.r) - color.r))); + color.g = (glow.g <= 0.5) ? (color.g - (1.0 - 2.0 * glow.g) * color.g * (1.0 - color.g)) : (((glow.g > 0.5) && (color.g <= 0.25)) ? (color.g + (2.0 * glow.g - 1.0) * (4.0 * color.g * (4.0 * color.g + 1.0) * (color.g - 1.0) + 7.0 * color.g)) : (color.g + (2.0 * glow.g - 1.0) * (sqrt(color.g) - color.g))); + color.b = (glow.b <= 0.5) ? (color.b - (1.0 - 2.0 * glow.b) * color.b * (1.0 - color.b)) : (((glow.b > 0.5) && (color.b <= 0.25)) ? (color.b + (2.0 * glow.b - 1.0) * (4.0 * color.b * (4.0 * color.b + 1.0) * (color.b - 1.0) + 7.0 * color.b)) : (color.b + (2.0 * glow.b - 1.0) * (sqrt(color.b) - color.b))); +#endif - vec3 coltn = ((color * (A * color + C * B) + D * E) / (color * (A * color + B) + D * F)) - E / F; - float whitetn = ((white * (A * white + C * B) + D * E) / (white * (A * white + B) + D * F)) - E / F; +#if !defined(USE_GLOW_SCREEN) && !defined(USE_GLOW_SOFTLIGHT) && !defined(USE_GLOW_REPLACE) // no other selected -> additive + color += glow; +#endif - return coltn / whitetn; + return color; } -vec3 tonemap_aces(vec3 color) { - float a = 2.51f; - float b = 0.03f; - float c = 2.43f; - float d = 0.59f; - float e = 0.14f; - return color = clamp((color * (a * color + b)) / (color * (c * color + d) + e), vec3(0.0), vec3(1.0)); +vec3 apply_bcs(vec3 color, vec3 bcs) { + color = mix(vec3(0.0), color, bcs.x); + color = mix(vec3(0.5), color, bcs.y); + color = mix(vec3(dot(vec3(1.0), color) * 0.33333), color, bcs.z); + + return color; } -vec3 tonemap_reindhart(vec3 color, float white) { +vec3 apply_color_correction(vec3 color, sampler2D correction_tex) { + color.r = texture2D(correction_tex, vec2(color.r, 0.0)).r; + color.g = texture2D(correction_tex, vec2(color.g, 0.0)).g; + color.b = texture2D(correction_tex, vec2(color.b, 0.0)).b; - return (color * (1.0 + (color / (white)))) / (1.0 + color); + return color; } void main() { + vec3 color = texture2DLod(source, uv_interp, 0.0).rgb; - vec4 color = textureLod(source, uv_interp, 0.0); + // Glow -#ifdef USE_AUTO_EXPOSURE - - color /= texelFetch(source_auto_exposure, ivec2(0, 0), 0).r / auto_exposure_grey; +#ifdef USING_GLOW + vec3 glow = vec3(0.0); +#ifdef USE_MULTI_TEXTURE_GLOW +#ifdef USE_GLOW_LEVEL1 + glow += GLOW_TEXTURE_SAMPLE(source_glow1, uv_interp, 0).rgb; +#ifdef USE_GLOW_LEVEL2 + glow += GLOW_TEXTURE_SAMPLE(source_glow2, uv_interp, 0).rgb; +#ifdef USE_GLOW_LEVEL3 + glow += GLOW_TEXTURE_SAMPLE(source_glow3, uv_interp, 0).rgb; +#ifdef USE_GLOW_LEVEL4 + glow += GLOW_TEXTURE_SAMPLE(source_glow4, uv_interp, 0).rgb; +#ifdef USE_GLOW_LEVEL5 + glow += GLOW_TEXTURE_SAMPLE(source_glow5, uv_interp, 0).rgb; +#ifdef USE_GLOW_LEVEL6 + glow += GLOW_TEXTURE_SAMPLE(source_glow6, uv_interp, 0).rgb; +#ifdef USE_GLOW_LEVEL7 + glow += GLOW_TEXTURE_SAMPLE(source_glow7, uv_interp, 0).rgb; +#endif +#endif +#endif +#endif +#endif #endif - - color *= exposure; - -#if defined(USE_GLOW_LEVEL1) || defined(USE_GLOW_LEVEL2) || defined(USE_GLOW_LEVEL3) || defined(USE_GLOW_LEVEL4) || defined(USE_GLOW_LEVEL5) || defined(USE_GLOW_LEVEL6) || defined(USE_GLOW_LEVEL7) -#define USING_GLOW #endif -#if defined(USING_GLOW) - vec3 glow = vec3(0.0); +#else #ifdef USE_GLOW_LEVEL1 - glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 1).rgb; #endif @@ -206,100 +269,21 @@ void main() { #ifdef USE_GLOW_LEVEL7 glow += GLOW_TEXTURE_SAMPLE(source_glow, uv_interp, 7).rgb; #endif +#endif //USE_MULTI_TEXTURE_GLOW glow *= glow_intensity; - -#endif - -#ifdef USE_REINDHART_TONEMAPPER - - color.rgb = tonemap_reindhart(color.rgb, white); - -#if defined(USING_GLOW) - glow = tonemap_reindhart(glow, white); -#endif - + color = apply_glow(color, glow); #endif -#ifdef USE_FILMIC_TONEMAPPER - - color.rgb = tonemap_filmic(color.rgb, white); - -#if defined(USING_GLOW) - glow = tonemap_filmic(glow, white); -#endif - -#endif - -#ifdef USE_ACES_TONEMAPPER - - color.rgb = tonemap_aces(color.rgb); - -#if defined(USING_GLOW) - glow = tonemap_aces(glow); -#endif - -#endif - - //regular Linear -> SRGB conversion - vec3 a = vec3(0.055); - color.rgb = mix((vec3(1.0) + a) * pow(color.rgb, vec3(1.0 / 2.4)) - a, 12.92 * color.rgb, lessThan(color.rgb, vec3(0.0031308))); - -#if defined(USING_GLOW) - glow = mix((vec3(1.0) + a) * pow(glow, vec3(1.0 / 2.4)) - a, 12.92 * glow, lessThan(glow, vec3(0.0031308))); -#endif - - //glow needs to be added in SRGB space (together with image space effects) - - color.rgb = clamp(color.rgb, 0.0, 1.0); - -#if defined(USING_GLOW) - glow = clamp(glow, 0.0, 1.0); -#endif - -#ifdef USE_GLOW_REPLACE - - color.rgb = glow; - -#endif - -#ifdef USE_GLOW_SCREEN - - color.rgb = max((color.rgb + glow) - (color.rgb * glow), vec3(0.0)); - -#endif - -#ifdef USE_GLOW_SOFTLIGHT - - { - - glow = (glow * 0.5) + 0.5; - color.r = (glow.r <= 0.5) ? (color.r - (1.0 - 2.0 * glow.r) * color.r * (1.0 - color.r)) : (((glow.r > 0.5) && (color.r <= 0.25)) ? (color.r + (2.0 * glow.r - 1.0) * (4.0 * color.r * (4.0 * color.r + 1.0) * (color.r - 1.0) + 7.0 * color.r)) : (color.r + (2.0 * glow.r - 1.0) * (sqrt(color.r) - color.r))); - color.g = (glow.g <= 0.5) ? (color.g - (1.0 - 2.0 * glow.g) * color.g * (1.0 - color.g)) : (((glow.g > 0.5) && (color.g <= 0.25)) ? (color.g + (2.0 * glow.g - 1.0) * (4.0 * color.g * (4.0 * color.g + 1.0) * (color.g - 1.0) + 7.0 * color.g)) : (color.g + (2.0 * glow.g - 1.0) * (sqrt(color.g) - color.g))); - color.b = (glow.b <= 0.5) ? (color.b - (1.0 - 2.0 * glow.b) * color.b * (1.0 - color.b)) : (((glow.b > 0.5) && (color.b <= 0.25)) ? (color.b + (2.0 * glow.b - 1.0) * (4.0 * color.b * (4.0 * color.b + 1.0) * (color.b - 1.0) + 7.0 * color.b)) : (color.b + (2.0 * glow.b - 1.0) * (sqrt(color.b) - color.b))); - } - -#endif - -#if defined(USING_GLOW) && !defined(USE_GLOW_SCREEN) && !defined(USE_GLOW_SOFTLIGHT) && !defined(USE_GLOW_REPLACE) - //additive - color.rgb += glow; -#endif + // Additional effects #ifdef USE_BCS - - color.rgb = mix(vec3(0.0), color.rgb, bcs.x); - color.rgb = mix(vec3(0.5), color.rgb, bcs.y); - color.rgb = mix(vec3(dot(vec3(1.0), color.rgb) * 0.33333), color.rgb, bcs.z); - + color = apply_bcs(color, bcs); #endif #ifdef USE_COLOR_CORRECTION - - color.r = texture(color_correction, vec2(color.r, 0.0)).r; - color.g = texture(color_correction, vec2(color.g, 0.0)).g; - color.b = texture(color_correction, vec2(color.b, 0.0)).b; + color = apply_color_correction(color, color_correction); #endif - frag_color = vec4(color.rgb, 1.0); + gl_FragColor = vec4(color, 1.0); } |