diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gles3/rasterizer_scene_gles3.cpp | 45 | ||||
| -rw-r--r-- | drivers/gles3/rasterizer_scene_gles3.h | 8 | ||||
| -rw-r--r-- | drivers/gles3/shader_gles3.h | 7 | ||||
| -rw-r--r-- | drivers/gles3/shaders/SCsub | 1 | ||||
| -rw-r--r-- | drivers/gles3/shaders/scene.glsl | 2315 | ||||
| -rw-r--r-- | drivers/gles3/shaders/stdlib_inc.glsl | 3 | ||||
| -rw-r--r-- | drivers/gles3/storage/material_storage.cpp | 398 | ||||
| -rw-r--r-- | drivers/gles3/storage/material_storage.h | 126 |
8 files changed, 1163 insertions, 1740 deletions
diff --git a/drivers/gles3/rasterizer_scene_gles3.cpp b/drivers/gles3/rasterizer_scene_gles3.cpp index 8bb14e27e2..cabb06d837 100644 --- a/drivers/gles3/rasterizer_scene_gles3.cpp +++ b/drivers/gles3/rasterizer_scene_gles3.cpp @@ -708,6 +708,10 @@ void RasterizerSceneGLES3::render_scene(RID p_render_buffers, const CameraData * //ERR_FAIL_COND(!rt); } + /////////// + // Fill Light lists here + ////////// + Color clear_color; if (p_render_buffers.is_valid()) { clear_color = texture_storage->render_target_get_clear_request_color(rb->render_target); @@ -1053,6 +1057,38 @@ RasterizerSceneGLES3::RasterizerSceneGLES3(RasterizerStorageGLES3 *p_storage) { storage = p_storage; { + String global_defines; + global_defines += "#define MAX_GLOBAL_VARIABLES 256\n"; // TODO: this is arbitrary for now + material_storage->shaders.scene_shader.initialize(global_defines); + scene_globals.shader_default_version = material_storage->shaders.scene_shader.version_create(); + material_storage->shaders.scene_shader.version_bind_shader(scene_globals.shader_default_version, SceneShaderGLES3::MODE_COLOR); + } + + { + //default material and shader + scene_globals.default_shader = material_storage->shader_allocate(); + material_storage->shader_initialize(scene_globals.default_shader); + material_storage->shader_set_code(scene_globals.default_shader, R"( +// Default 3D material shader (clustered). + +shader_type spatial; + +void vertex() { + ROUGHNESS = 0.8; +} + +void fragment() { + ALBEDO = vec3(0.6); + ROUGHNESS = 0.8; + METALLIC = 0.2; +} +)"); + scene_globals.default_material = material_storage->material_allocate(); + material_storage->material_initialize(scene_globals.default_material); + material_storage->material_set_shader(scene_globals.default_material, scene_globals.default_shader); + } + + { // Initialize Sky stuff sky_globals.roughness_layers = GLOBAL_GET("rendering/reflections/sky_reflections/roughness_layers"); sky_globals.ggx_samples = GLOBAL_GET("rendering/reflections/sky_reflections/ggx_samples"); @@ -1060,9 +1096,9 @@ RasterizerSceneGLES3::RasterizerSceneGLES3(RasterizerStorageGLES3 *p_storage) { String global_defines; global_defines += "#define MAX_GLOBAL_VARIABLES 256\n"; // TODO: this is arbitrary for now global_defines += "\n#define MAX_DIRECTIONAL_LIGHT_DATA_STRUCTS " + itos(sky_globals.max_directional_lights) + "\n"; - GLES3::MaterialStorage::get_singleton()->shaders.sky_shader.initialize(global_defines); - sky_globals.shader_default_version = GLES3::MaterialStorage::get_singleton()->shaders.sky_shader.version_create(); - GLES3::MaterialStorage::get_singleton()->shaders.sky_shader.version_bind_shader(sky_globals.shader_default_version, SkyShaderGLES3::MODE_BACKGROUND); + material_storage->shaders.sky_shader.initialize(global_defines); + sky_globals.shader_default_version = material_storage->shaders.sky_shader.version_create(); + material_storage->shaders.sky_shader.version_bind_shader(sky_globals.shader_default_version, SkyShaderGLES3::MODE_BACKGROUND); } { @@ -1149,6 +1185,9 @@ void sky() { } RasterizerSceneGLES3::~RasterizerSceneGLES3() { + GLES3::MaterialStorage::get_singleton()->shaders.scene_shader.version_free(scene_globals.shader_default_version); + storage->free(scene_globals.default_material); + storage->free(scene_globals.default_shader); GLES3::MaterialStorage::get_singleton()->shaders.sky_shader.version_free(sky_globals.shader_default_version); storage->free(sky_globals.default_material); storage->free(sky_globals.default_shader); diff --git a/drivers/gles3/rasterizer_scene_gles3.h b/drivers/gles3/rasterizer_scene_gles3.h index 4c7502cda4..13b3b007a2 100644 --- a/drivers/gles3/rasterizer_scene_gles3.h +++ b/drivers/gles3/rasterizer_scene_gles3.h @@ -91,9 +91,7 @@ private: RS::ViewportDebugDraw debug_draw = RS::VIEWPORT_DEBUG_DRAW_DISABLED; uint64_t scene_pass = 0; - /* Sky */ struct SkyGlobals { - RID shader_current_version; RID shader_default_version; RID default_material; RID default_shader; @@ -106,6 +104,12 @@ private: uint32_t ggx_samples = 128; } sky_globals; + struct SceneGlobals { + RID shader_default_version; + RID default_material; + RID default_shader; + } scene_globals; + protected: double time; double time_step = 0; diff --git a/drivers/gles3/shader_gles3.h b/drivers/gles3/shader_gles3.h index 15281064af..8d1b142dc6 100644 --- a/drivers/gles3/shader_gles3.h +++ b/drivers/gles3/shader_gles3.h @@ -73,10 +73,11 @@ private: //versions CharString general_defines; - // A version is a high-level construct which is a combination of built-in and user-defined shader code - // Variants use #idefs to toggle behaviour on and off to change behaviour of the shader + // A version is a high-level construct which is a combination of built-in and user-defined shader code, Each user-created Shader makes one version + // Variants use #ifdefs to toggle behaviour on and off to change behaviour of the shader + // All variants are compiled each time a new version is created // Specializations use #ifdefs to toggle behaviour on and off for performance, on supporting hardware, they will compile a version with everything enabled, and then compile more copies to improve performance - // Use specializations to enable and disabled advanced features, use variants to toggle behaviour when different data may be used (e.g. using a samplerArray vs a sampler) + // Use specializations to enable and disabled advanced features, use variants to toggle behaviour when different data may be used (e.g. using a samplerArray vs a sampler, or doing a depth prepass vs a color pass) struct Version { Vector<StringName> texture_uniforms; CharString uniforms; diff --git a/drivers/gles3/shaders/SCsub b/drivers/gles3/shaders/SCsub index 79247f38d4..ec32badc19 100644 --- a/drivers/gles3/shaders/SCsub +++ b/drivers/gles3/shaders/SCsub @@ -8,4 +8,5 @@ env.Depends("#drivers/gles3/shaders/copy.glsl.gen.h", "#core/math/transform_2d.h if "GLES3_GLSL" in env["BUILDERS"]: env.GLES3_GLSL("canvas.glsl") env.GLES3_GLSL("copy.glsl") + env.GLES3_GLSL("scene.glsl") env.GLES3_GLSL("sky.glsl") diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl index ebb00e81d0..16a9224fbb 100644 --- a/drivers/gles3/shaders/scene.glsl +++ b/drivers/gles3/shaders/scene.glsl @@ -1,108 +1,146 @@ /* clang-format off */ -[vertex] +#[modes] -#ifdef USE_GLES_OVER_GL -#define lowp -#define mediump -#define highp -#else -precision highp float; -precision highp int; -#endif +mode_color = #define BASE_PASS +mode_additive = #define USE_ADDITIVE_LIGHTING +mode_depth = #define MODE_RENDER_DEPTH + +#[specializations] -#define SHADER_IS_SRGB true //TODO remove +USE_LIGHTMAP = false +USE_LIGHT_DIRECTIONAL = false +USE_LIGHT_POSITIONAL = false + + +#[vertex] #define M_PI 3.14159265359 -// -// attributes -// +#define SHADER_IS_SRGB true + +#include "stdlib_inc.glsl" + +/* +from RenderingServer: +ARRAY_VERTEX = 0, // RG32F or RGB32F (depending on 2D bit) +ARRAY_COLOR = 3, // RGBA8 +ARRAY_TEX_UV = 4, // RG32F +ARRAY_TANGENT = 2, // A2B10G10R10, A flips sign of binormal. +ARRAY_NORMAL = 1, // A2B10G10R10, A is ignored. +ARRAY_TEX_UV2 = 5, // RG32F +ARRAY_CUSTOM0 = 6, // Depends on ArrayCustomFormat. +ARRAY_CUSTOM1 = 7, +ARRAY_CUSTOM2 = 8, +ARRAY_CUSTOM3 = 9, +ARRAY_BONES = 10, // RGBA16UI (x2 if 8 weights) +ARRAY_WEIGHTS = 11, // RGBA16UNORM (x2 if 8 weights) +ARRAY_INDEX = 12, // 16 or 32 bits depending on length > 0xFFFF. +ARRAY_MAX = 13 +*/ + +/* INPUT ATTRIBS */ -layout(location = 0) in highp vec4 vertex_attrib; +layout(location = 0) in vec3 vertex_attrib; /* clang-format on */ + +#ifdef NORMAL_USED layout(location = 1) in vec3 normal_attrib; +#endif -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) +#if defined(TANGENT_USED) || defined(NORMAL_MAP_USED) || defined(LIGHT_ANISOTROPY_USED) layout(location = 2) in vec4 tangent_attrib; #endif -#if defined(ENABLE_COLOR_INTERP) +#if defined(COLOR_USED) layout(location = 3) in vec4 color_attrib; #endif -#if defined(ENABLE_UV_INTERP) +#ifdef UV_USED layout(location = 4) in vec2 uv_attrib; #endif -#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) +#if defined(UV2_USED) || defined(USE_LIGHTMAP) layout(location = 5) in vec2 uv2_attrib; #endif -#ifdef USE_SKELETON - -#ifdef USE_SKELETON_SOFTWARE - -layout(location = 13) in highp vec4 bone_transform_row_0; -layout(location = 14) in highp vec4 bone_transform_row_1; -layout(location = 15) in highp vec4 bone_transform_row_2; +#if defined(CUSTOM0_USED) +layout(location = 6) in vec4 custom0_attrib; +#endif -#else +#if defined(CUSTOM1_USED) +layout(location = 7) in vec4 custom1_attrib; +#endif -layout(location = 6) in vec4 bone_ids; -layout(location = 7) in highp vec4 bone_weights; +#if defined(CUSTOM2_USED) +layout(location = 8) in vec4 custom2_attrib; +#endif -uniform highp sampler2D bone_transforms; // texunit:-1 -uniform ivec2 skeleton_texture_size; +#if defined(CUSTOM3_USED) +layout(location = 9) in vec4 custom3_attrib; +#endif +#if defined(BONES_USED) || defined(USE_PARTICLE_TRAILS) +layout(location = 10) in uvec4 bone_attrib; #endif +#if defined(WEIGHTS_USED) || defined(USE_PARTICLE_TRAILS) +layout(location = 11) in vec4 weight_attrib; #endif -#ifdef USE_INSTANCING +layout(std140) uniform SceneData { // ubo:3 + mat4 projection_matrix; + mat4 inv_projection_matrix; + mat4 inv_view_matrix; + mat4 view_matrix; -layout(location = 8) in highp vec4 instance_xform_row_0; -layout(location = 9) in highp vec4 instance_xform_row_1; -layout(location = 10) in highp vec4 instance_xform_row_2; + vec2 viewport_size; + vec2 screen_pixel_size; -layout(location = 11) in highp vec4 instance_color; -layout(location = 12) in highp vec4 instance_custom_data; + mediump vec4 ambient_light_color_energy; -#endif + mediump float ambient_color_sky_mix; + uint ambient_flags; + bool material_uv2_mode; + float opaque_prepass_threshold; + //bool use_ambient_light; + //bool use_ambient_cubemap; + //bool use_reflection_cubemap; -// -// uniforms -// + mat3 radiance_inverse_xform; -uniform highp mat4 inv_view_matrix; -uniform highp mat4 view_matrix; -uniform highp mat4 projection_matrix; -uniform highp mat4 projection_inverse_matrix; + uint directional_light_count; + float z_far; + float z_near; + float pad; -uniform highp mat4 world_transform; + bool fog_enabled; + float fog_density; + float fog_height; + float fog_height_density; -uniform highp float time; + vec3 fog_light_color; + float fog_sun_scatter; -uniform highp vec2 viewport_size; + float fog_aerial_perspective; -#ifdef RENDER_DEPTH -uniform float light_bias; -uniform float light_normal_bias; -#endif + float time; + float reflection_multiplier; // one normally, zero when rendering reflections -// -// varyings -// + bool pancake_shadows; +} +scene_data; -#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) -out highp vec4 position_interp; +uniform highp mat4 world_transform; + +#ifdef USE_LIGHTMAP +uniform highp vec4 lightmap_uv_rect; #endif +/* Varyings */ + out highp vec3 vertex_interp; +#ifdef NORMAL_USED out vec3 normal_interp; - -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) -out vec3 tangent_interp; -out vec3 binormal_interp; #endif #if defined(ENABLE_COLOR_INTERP) @@ -113,537 +151,155 @@ out vec4 color_interp; out vec2 uv_interp; #endif -#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) +#if defined(ENABLE_UV2_INTERP) out vec2 uv2_interp; -#endif - -/* clang-format off */ - -VERTEX_SHADER_GLOBALS - -/* clang-format on */ - -#ifdef RENDER_DEPTH_DUAL_PARABOLOID - -out highp float dp_clip; -uniform highp float shadow_dual_paraboloid_render_zfar; -uniform highp float shadow_dual_paraboloid_render_side; - -#endif - -#if defined(USE_SHADOW) && defined(USE_LIGHTING) - -uniform highp mat4 light_shadow_matrix; -out highp vec4 shadow_coord; - -#if defined(LIGHT_USE_PSSM2) || defined(LIGHT_USE_PSSM4) -uniform highp mat4 light_shadow_matrix2; -out highp vec4 shadow_coord2; -#endif - -#if defined(LIGHT_USE_PSSM4) - -uniform highp mat4 light_shadow_matrix3; -uniform highp mat4 light_shadow_matrix4; -out highp vec4 shadow_coord3; -out highp vec4 shadow_coord4; - -#endif - -#endif - -#if defined(USE_VERTEX_LIGHTING) && defined(USE_LIGHTING) - -out highp vec3 diffuse_interp; -out highp vec3 specular_interp; - -// general for all lights -uniform highp vec4 light_color; -uniform highp vec4 shadow_color; -uniform highp float light_specular; - -// directional -uniform highp vec3 light_direction; - -// omni -uniform highp vec3 light_position; - -uniform highp float light_range; -uniform highp float light_attenuation; - -// spot -uniform highp float light_spot_attenuation; -uniform highp float light_spot_range; -uniform highp float light_spot_angle; - -void light_compute( - vec3 N, - vec3 L, - vec3 V, - vec3 light_color, - vec3 attenuation, - float roughness) { -//this makes lights behave closer to linear, but then addition of lights looks bad -//better left disabled - -//#define SRGB_APPROX(m_var) m_var = pow(m_var,0.4545454545); -/* -#define SRGB_APPROX(m_var) {\ - float S1 = sqrt(m_var);\ - float S2 = sqrt(S1);\ - float S3 = sqrt(S2);\ - m_var = 0.662002687 * S1 + 0.684122060 * S2 - 0.323583601 * S3 - 0.0225411470 * m_var;\ - } -*/ -#define SRGB_APPROX(m_var) - - float NdotL = dot(N, L); - float cNdotL = max(NdotL, 0.0); // clamped NdotL - float NdotV = dot(N, V); - float cNdotV = max(NdotV, 0.0); - -#if defined(DIFFUSE_OREN_NAYAR) - vec3 diffuse_brdf_NL; #else - float diffuse_brdf_NL; // BRDF times N.L for calculating diffuse radiance -#endif - -#if defined(DIFFUSE_LAMBERT_WRAP) - // energy conserving lambert wrap shader - diffuse_brdf_NL = max(0.0, (NdotL + roughness) / ((1.0 + roughness) * (1.0 + roughness))); - -#elif defined(DIFFUSE_OREN_NAYAR) - - { - // see http://mimosa-pudica.net/improved-oren-nayar.html - float LdotV = dot(L, V); - - float s = LdotV - NdotL * NdotV; - float t = mix(1.0, max(NdotL, NdotV), step(0.0, s)); - - float sigma2 = roughness * roughness; // TODO: this needs checking - vec3 A = 1.0 + sigma2 * (-0.5 / (sigma2 + 0.33) + 0.17 * diffuse_color / (sigma2 + 0.13)); - float B = 0.45 * sigma2 / (sigma2 + 0.09); - - diffuse_brdf_NL = cNdotL * (A + vec3(B) * s / t) * (1.0 / M_PI); - } -#else - // lambert by default for everything else - diffuse_brdf_NL = cNdotL * (1.0 / M_PI); +#ifdef USE_LIGHTMAP +out vec2 uv2_interp; #endif - - SRGB_APPROX(diffuse_brdf_NL) - - diffuse_interp += light_color * diffuse_brdf_NL * attenuation; - - if (roughness > 0.0) { - // D - float specular_brdf_NL = 0.0; - -#if !defined(SPECULAR_DISABLED) - //normalized blinn always unless disabled - vec3 H = normalize(V + L); - float cNdotH = max(dot(N, H), 0.0); - float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; - float blinn = pow(cNdotH, shininess) * cNdotL; - blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); - specular_brdf_NL = blinn; #endif - SRGB_APPROX(specular_brdf_NL) - specular_interp += specular_brdf_NL * light_color * attenuation * (1.0 / M_PI); - } -} - +#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) +out vec3 tangent_interp; +out vec3 binormal_interp; #endif -#ifdef USE_VERTEX_LIGHTING - -#ifdef USE_REFLECTION_PROBE1 - -uniform highp mat4 refprobe1_local_matrix; -out mediump vec4 refprobe1_reflection_normal_blend; -uniform highp vec3 refprobe1_box_extents; +#if defined(USE_MATERIAL) -#ifndef USE_LIGHTMAP -out mediump vec3 refprobe1_ambient_normal; -#endif - -#endif //reflection probe1 +/* clang-format off */ +layout(std140) uniform UniformData { // ubo:1 -#ifdef USE_REFLECTION_PROBE2 +#MATERIAL_UNIFORMS -uniform highp mat4 refprobe2_local_matrix; -out mediump vec4 refprobe2_reflection_normal_blend; -uniform highp vec3 refprobe2_box_extents; +}; +/* clang-format on */ -#ifndef USE_LIGHTMAP -out mediump vec3 refprobe2_ambient_normal; #endif -#endif //reflection probe2 - -#endif //vertex lighting for refprobes - -#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) - -out vec4 fog_interp; - -uniform mediump vec4 fog_color_base; -#ifdef LIGHT_MODE_DIRECTIONAL -uniform mediump vec4 fog_sun_color_amount; -#endif +/* clang-format off */ -uniform bool fog_transmit_enabled; -uniform mediump float fog_transmit_curve; +#GLOBALS -#ifdef FOG_DEPTH_ENABLED -uniform highp float fog_depth_begin; -uniform mediump float fog_depth_curve; -uniform mediump float fog_max_distance; -#endif +/* clang-format on */ -#ifdef FOG_HEIGHT_ENABLED -uniform highp float fog_height_min; -uniform highp float fog_height_max; -uniform mediump float fog_height_curve; -#endif +out highp vec4 position_interp; -#endif //fog +invariant gl_Position; void main() { - highp vec4 vertex = vertex_attrib; + highp vec3 vertex = vertex_attrib; - mat4 model_matrix = world_transform; - -#ifdef USE_INSTANCING - { - highp mat4 m = mat4( - instance_xform_row_0, - instance_xform_row_1, - instance_xform_row_2, - vec4(0.0, 0.0, 0.0, 1.0)); - model_matrix = model_matrix * transpose(m); - } + highp mat4 model_matrix = world_transform; +#ifdef NORMAL_USED + vec3 normal = normal_attrib * 2.0 - 1.0; #endif + mat3 model_normal_matrix = mat3(model_matrix); - vec3 normal = normal_attrib; - -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - vec3 tangent = tangent_attrib.xyz; - float binormalf = tangent_attrib.a; - vec3 binormal = normalize(cross(normal, tangent) * binormalf); +#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) + vec3 tangent; + float binormalf; + tangent = normal_tangent_attrib.xyz; + binormalf = normal_tangent_attrib.a; #endif #if defined(ENABLE_COLOR_INTERP) color_interp = color_attrib; -#ifdef USE_INSTANCING - color_interp *= instance_color; #endif + +#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) + vec3 binormal = normalize(cross(normal, tangent) * binormalf); #endif #if defined(ENABLE_UV_INTERP) uv_interp = uv_attrib; #endif -#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) +#ifdef USE_LIGHTMAP + uv2_interp = lightmap_uv_rect.zw * uv2_attrib + lightmap_uv_rect.xy; +#else +#if defined(ENABLE_UV2_INTERP) uv2_interp = uv2_attrib; #endif +#endif #if defined(OVERRIDE_POSITION) highp vec4 position; #endif + mat4 projection_matrix = scene_data.projection_matrix; + mat4 inv_projection_matrix = scene_data.inv_projection_matrix; -#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) - vertex = model_matrix * vertex; - normal = normalize((model_matrix * vec4(normal, 0.0)).xyz); -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - - tangent = normalize((model_matrix * vec4(tangent, 0.0)).xyz); - binormal = normalize((model_matrix * vec4(binormal, 0.0)).xyz); -#endif -#endif - -#ifdef USE_SKELETON - - highp mat4 bone_transform = mat4(0.0); - -#ifdef USE_SKELETON_SOFTWARE - // passing the transform as attributes - - bone_transform[0] = vec4(bone_transform_row_0.x, bone_transform_row_1.x, bone_transform_row_2.x, 0.0); - bone_transform[1] = vec4(bone_transform_row_0.y, bone_transform_row_1.y, bone_transform_row_2.y, 0.0); - bone_transform[2] = vec4(bone_transform_row_0.z, bone_transform_row_1.z, bone_transform_row_2.z, 0.0); - bone_transform[3] = vec4(bone_transform_row_0.w, bone_transform_row_1.w, bone_transform_row_2.w, 1.0); + vec4 instance_custom = vec4(0.0); -#else - // look up transform from the "pose texture" - { - for (int i = 0; i < 4; i++) { - ivec2 tex_ofs = ivec2(int(bone_ids[i]) * 3, 0); + // Using world coordinates +#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) - highp mat4 b = mat4( - texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(0, 0)), - texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(1, 0)), - texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(2, 0)), - vec4(0.0, 0.0, 0.0, 1.0)); - - bone_transform += transpose(b) * bone_weights[i]; - } - } + vertex = (model_matrix * vec4(vertex, 1.0)).xyz; +#ifdef NORMAL_USED + normal = model_normal_matrix * normal; #endif - model_matrix = model_matrix * bone_transform; - -#endif +#if defined(TANGENT_USED) || defined(NORMAL_MAP_USED) || defined(LIGHT_ANISOTROPY_USED) -#ifdef USE_INSTANCING - vec4 instance_custom = instance_custom_data; -#else - vec4 instance_custom = vec4(0.0); + tangent = model_normal_matrix * tangent; + binormal = model_normal_matrix * binormal; #endif +#endif - mat4 local_projection_matrix = projection_matrix; - - mat4 modelview = view_matrix * model_matrix; float roughness = 1.0; -#define projection_matrix local_projection_matrix -#define world_transform model_matrix + mat4 modelview = scene_data.view_matrix * model_matrix; + mat3 modelview_normal = mat3(scene_data.view_matrix) * model_normal_matrix; float point_size = 1.0; { - /* clang-format off */ - -VERTEX_SHADER_CODE - - /* clang-format on */ +#CODE : VERTEX } gl_PointSize = point_size; - vec4 outvec = vertex; - // use local coordinates + // Using local coordinates (default) #if !defined(SKIP_TRANSFORM_USED) && !defined(VERTEX_WORLD_COORDS_USED) - vertex = modelview * vertex; - normal = normalize((modelview * vec4(normal, 0.0)).xyz); - -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - tangent = normalize((modelview * vec4(tangent, 0.0)).xyz); - binormal = normalize((modelview * vec4(binormal, 0.0)).xyz); -#endif -#endif - -#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) - vertex = view_matrix * vertex; - normal = normalize((view_matrix * vec4(normal, 0.0)).xyz); -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - tangent = normalize((view_matrix * vec4(tangent, 0.0)).xyz); - binormal = normalize((view_matrix * vec4(binormal, 0.0)).xyz); -#endif -#endif - - vertex_interp = vertex.xyz; - normal_interp = normal; - -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - tangent_interp = tangent; - binormal_interp = binormal; -#endif - -#ifdef RENDER_DEPTH - -#ifdef RENDER_DEPTH_DUAL_PARABOLOID - - vertex_interp.z *= shadow_dual_paraboloid_render_side; - normal_interp.z *= shadow_dual_paraboloid_render_side; - - dp_clip = vertex_interp.z; //this attempts to avoid noise caused by objects sent to the other parabolloid side due to bias - - //for dual paraboloid shadow mapping, this is the fastest but least correct way, as it curves straight edges - - highp vec3 vtx = vertex_interp + normalize(vertex_interp) * light_bias; - highp float distance = length(vtx); - vtx = normalize(vtx); - vtx.xy /= 1.0 - vtx.z; - vtx.z = (distance / shadow_dual_paraboloid_render_zfar); - vtx.z = vtx.z * 2.0 - 1.0; - - vertex_interp = vtx; - -#else - float z_ofs = light_bias; - z_ofs += (1.0 - abs(normal_interp.z)) * light_normal_bias; - - vertex_interp.z -= z_ofs; -#endif //dual parabolloid - -#endif //depth - -//vertex lighting -#if defined(USE_VERTEX_LIGHTING) && defined(USE_LIGHTING) - //vertex shaded version of lighting (more limited) - vec3 L; - vec3 light_att; - -#ifdef LIGHT_MODE_OMNI - vec3 light_vec = light_position - vertex_interp; - 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); - - vec3 attenuation = vec3(omni_attenuation); - light_att = vec3(omni_attenuation); - } else { - light_att = vec3(0.0); - } - - L = normalize(light_vec); - -#endif - -#ifdef LIGHT_MODE_SPOT - - vec3 light_rel_vec = light_position - vertex_interp; - float light_length = length(light_rel_vec); - float normalized_distance = light_length / light_range; - - 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 angle = dot(-normalize(light_rel_vec), spot_dir); - - 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); - } - - L = normalize(light_rel_vec); + vertex = (modelview * vec4(vertex, 1.0)).xyz; +#ifdef NORMAL_USED + normal = modelview_normal * normal; #endif -#ifdef LIGHT_MODE_DIRECTIONAL - vec3 light_vec = -light_direction; - light_att = vec3(1.0); //no base attenuation - L = normalize(light_vec); #endif - diffuse_interp = vec3(0.0); - specular_interp = vec3(0.0); - light_compute(normal_interp, L, -normalize(vertex_interp), light_color.rgb, light_att, roughness); - -#endif - -//shadows (for both vertex and fragment) -#if defined(USE_SHADOW) && defined(USE_LIGHTING) - - vec4 vi4 = vec4(vertex_interp, 1.0); - shadow_coord = light_shadow_matrix * vi4; +#if defined(TANGENT_USED) || defined(NORMAL_MAP_USED) || defined(LIGHT_ANISOTROPY_USED) -#if defined(LIGHT_USE_PSSM2) || defined(LIGHT_USE_PSSM4) - shadow_coord2 = light_shadow_matrix2 * vi4; + binormal = modelview_normal * binormal; + tangent = modelview_normal * tangent; #endif -#if defined(LIGHT_USE_PSSM4) - shadow_coord3 = light_shadow_matrix3 * vi4; - shadow_coord4 = light_shadow_matrix4 * vi4; + // Using world coordinates +#if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) + vertex = (scene_data.view_matrix * vec4(vertex, 1.0)).xyz; +#ifdef NORMAL_USED + normal = (scene_data.view_matrix * vec4(normal, 0.0)).xyz; #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; +#if defined(TANGENT_USED) || defined(NORMAL_MAP_USED) || defined(LIGHT_ANISOTROPY_USED) + binormal = (scene_data.view_matrix * vec4(binormal, 0.0)).xyz; + tangent = (scene_data.view_matrix * vec4(tangent, 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; - } + vertex_interp = vertex; +#ifdef NORMAL_USED + normal_interp = normal; #endif -#ifdef FOG_HEIGHT_ENABLED - { - float y = (inv_view_matrix * vec4(vertex_interp, 1.0)).y; - fog_amount = max(fog_amount, pow(smoothstep(fog_height_min, fog_height_max, y), fog_height_curve)); - } +#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) + tangent_interp = tangent; + binormal_interp = binormal; #endif - fog_interp = vec4(fog_color, fog_amount); - -#endif //fog - -#endif //use vertex lighting #if defined(OVERRIDE_POSITION) gl_Position = position; @@ -651,333 +307,230 @@ VERTEX_SHADER_CODE gl_Position = projection_matrix * vec4(vertex_interp, 1.0); #endif -#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) - position_interp = gl_Position; +#ifdef MODE_RENDER_DEPTH + if (scene_data.pancake_shadows) { + if (gl_Position.z <= 0.00001) { + gl_Position.z = 0.00001; + } + } #endif + + position_interp = gl_Position; } /* 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 - -#define M_PI 3.14159265359 -#define SHADER_IS_SRGB true - -// -// uniforms -// - -uniform highp mat4 inv_view_matrix; -/* clang-format on */ -uniform highp mat4 view_matrix; -uniform highp mat4 projection_matrix; -uniform highp mat4 projection_inverse_matrix; - -uniform highp mat4 world_transform; +#[fragment] -uniform highp float time; -uniform highp vec2 viewport_size; - -#if defined(SCREEN_UV_USED) -uniform vec2 screen_pixel_size; +// Default to SPECULAR_SCHLICK_GGX. +#if !defined(SPECULAR_DISABLED) && !defined(SPECULAR_SCHLICK_GGX) && !defined(SPECULAR_TOON) +#define SPECULAR_SCHLICK_GGX #endif -#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 +#if !defined(MODE_RENDER_DEPTH) || defined(TANGENT_USED) || defined(NORMAL_MAP_USED) || defined(LIGHT_ANISOTROPY_USED) +#ifndef NORMAL_USED +#define NORMAL_USED #endif - -#ifdef USE_REFLECTION_PROBE1 - -#ifdef USE_VERTEX_LIGHTING - -in mediump vec4 refprobe1_reflection_normal_blend; -#ifndef USE_LIGHTMAP -in 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; +#include "tonemap_inc.glsl" +#include "stdlib_inc.glsl" -#endif //use vertex lighting +/* texture unit usage, N is max_texture_unity-N -uniform bool refprobe1_exterior; +1-color correction // In tonemap_inc.glsl +2-radiance +3-directional_shadow +4-positional_shadow +5-screen +6-depth -uniform highp samplerCube reflection_probe1; //texunit:-5 +*/ -uniform float refprobe1_intensity; -uniform vec4 refprobe1_ambient; +uniform highp mat4 world_transform; +/* clang-format on */ -#endif //USE_REFLECTION_PROBE1 +#define M_PI 3.14159265359 +#define SHADER_IS_SRGB false -#ifdef USE_REFLECTION_PROBE2 +/* Varyings */ -#ifdef USE_VERTEX_LIGHTING +#if defined(ENABLE_COLOR_INTERP) +in vec4 color_interp; +#endif -in mediump vec4 refprobe2_reflection_normal_blend; -#ifndef USE_LIGHTMAP -in mediump vec3 refprobe2_ambient_normal; +#if defined(ENABLE_UV_INTERP) +in vec2 uv_interp; #endif +#if defined(ENABLE_UV2_INTERP) +in vec2 uv2_interp; #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, +#ifdef USE_LIGHTMAP +in vec2 uv2_interp; +#endif #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; +#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) +in vec3 tangent_interp; +in vec3 binormal_interp; #endif - if (exterior) { - reflection.rgb = mix(skybox, reflection.rgb, blend); - } - reflection.rgb *= intensity; - reflection.a = blend; - reflection.rgb *= blend; +in highp vec3 vertex_interp; +in vec3 normal_interp; - reflection_accum += reflection; +/* PBR CHANNELS */ -#ifndef USE_LIGHTMAP +#ifdef USE_RADIANCE_MAP - vec4 ambient_out; -#ifndef USE_VERTEX_LIGHTING +layout(std140) uniform Radiance { // ubo:2 - vec3 amb_normal = (local_matrix * vec4(normal, 0.0)).xyz; -#endif + mat4 radiance_inverse_xform; + float radiance_ambient_contribution; +}; - 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); - } +#define RADIANCE_MAX_LOD 5.0 - ambient_out.a = blend; - ambient_out.rgb *= blend; - ambient_accum += ambient_out; +uniform sampler2D radiance_map; // texunit:-2 -#endif +vec3 textureDualParaboloid(sampler2D p_tex, vec3 p_vec, float p_roughness) { + vec3 norm = normalize(p_vec); + norm.xy /= 1.0 + abs(norm.z); + norm.xy = norm.xy * vec2(0.5, 0.25) + vec2(0.5, 0.25); + if (norm.z > 0.0) { + norm.y = 0.5 - norm.y + 0.5; + } + return textureLod(p_tex, norm.xy, p_roughness * RADIANCE_MAX_LOD).xyz; } -#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; +/* Material Uniforms */ -#endif +#if defined(USE_MATERIAL) -#ifdef USE_RADIANCE_MAP +/* clang-format off */ +layout(std140) uniform UniformData { -uniform samplerCube radiance_map; // texunit:-2 +#MATERIAL_UNIFORMS -uniform mat4 radiance_inverse_xform; +}; +/* clang-format on */ #endif -uniform vec4 bg_color; -uniform float bg_energy; - -uniform float ambient_sky_contribution; -uniform vec4 ambient_color; -uniform float ambient_energy; +layout(std140) uniform SceneData { // ubo:3 + mat4 projection_matrix; + mat4 inv_projection_matrix; + mat4 inv_view_matrix; + mat4 view_matrix; -#ifdef USE_LIGHTING + vec2 viewport_size; + vec2 screen_pixel_size; -uniform highp vec4 shadow_color; + mediump vec4 ambient_light_color_energy; -#ifdef USE_VERTEX_LIGHTING + mediump float ambient_color_sky_mix; + uint ambient_flags; + bool material_uv2_mode; + float opaque_prepass_threshold; + //bool use_ambient_light; + //bool use_ambient_cubemap; + //bool use_reflection_cubemap; -//get from vertex -in highp vec3 diffuse_interp; -in highp vec3 specular_interp; + mat3 radiance_inverse_xform; -uniform highp vec3 light_direction; //may be used by fog, so leave here + uint directional_light_count; + float z_far; + float z_near; + float pad; -#else -//done in fragment -// general for all lights -uniform highp vec4 light_color; + bool fog_enabled; + float fog_density; + float fog_height; + float fog_height_density; -uniform highp float light_specular; + vec3 fog_light_color; + float fog_sun_scatter; -// directional -uniform highp vec3 light_direction; -// omni -uniform highp vec3 light_position; + float fog_aerial_perspective; -uniform highp float light_attenuation; + float time; + float reflection_multiplier; // one normally, zero when rendering reflections -// spot -uniform highp float light_spot_attenuation; -uniform highp float light_spot_range; -uniform highp float light_spot_angle; -#endif + bool pancake_shadows; +} +scene_data; -//this is needed outside above if because dual paraboloid wants it -uniform highp float light_range; +/* clang-format off */ -#ifdef USE_SHADOW +#GLOBALS -uniform highp vec2 shadow_pixel_size; +/* clang-format on */ -#if defined(LIGHT_MODE_OMNI) || defined(LIGHT_MODE_SPOT) -uniform highp sampler2D light_shadow_atlas; //texunit:-3 -#endif +//directional light data -#ifdef LIGHT_MODE_DIRECTIONAL -uniform highp sampler2D light_directional_shadow; // texunit:-3 -uniform highp vec4 light_split_offsets; -#endif +#ifdef USE_LIGHT_DIRECTIONAL -in highp vec4 shadow_coord; +struct DirectionalLightData { + mediump vec3 direction; + mediump float energy; + mediump vec3 color; + mediump float size; + mediump vec3 pad; + mediump float specular; +}; -#if defined(LIGHT_USE_PSSM2) || defined(LIGHT_USE_PSSM4) -in highp vec4 shadow_coord2; #endif -#if defined(LIGHT_USE_PSSM4) - -in highp vec4 shadow_coord3; -in highp vec4 shadow_coord4; +// omni and spot +#ifdef USE_LIGHT_POSITIONAL +struct LightData { //this structure needs to be as packed as possible + highp vec3 position; + highp float inv_radius; -#endif + mediump vec3 direction; + highp float size; -uniform vec4 light_clamp; + mediump vec3 color; + mediump float attenuation; -#endif // light shadow + mediump float cone_attenuation; + mediump float cone_angle; + mediump float specular_amount; + bool shadow_enabled; +}; -// directional shadow +layout(std140) uniform OmniLightData { // ubo:4 -#endif + LightData omni_lights[MAX_LIGHT_DATA_STRUCTS]; +}; -// -// varyings -// +layout(std140) uniform SpotLightData { // ubo:5 -#if defined(RENDER_DEPTH) && defined(USE_RGBA_SHADOWS) -in highp vec4 position_interp; -#endif + LightData spot_lights[MAX_LIGHT_DATA_STRUCTS]; +}; -in highp vec3 vertex_interp; -in vec3 normal_interp; +uniform highp samplerCubeShadow positional_shadow; // texunit:-6 -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) -in vec3 tangent_interp; -in vec3 binormal_interp; -#endif +uniform int omni_light_indices[MAX_FORWARD_LIGHTS]; +uniform int omni_light_count; -#if defined(ENABLE_COLOR_INTERP) -in vec4 color_interp; -#endif +uniform int spot_light_indices[MAX_FORWARD_LIGHTS]; +uniform int spot_light_count; -#if defined(ENABLE_UV_INTERP) -in vec2 uv_interp; -#endif +uniform int reflection_indices[MAX_FORWARD_LIGHTS]; +uniform int reflection_count; -#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) -in vec2 uv2_interp; #endif -in vec3 view_interp; +uniform highp sampler2D screen_texture; // texunit:-5 +uniform highp sampler2D depth_buffer; // texunit:-6 layout(location = 0) out vec4 frag_color; +in highp vec4 position_interp; + 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; @@ -985,95 +538,31 @@ vec3 F0(float metallic, float specular, vec3 albedo) { return mix(vec3(dielectric), albedo, vec3(metallic)); } -/* clang-format off */ - -FRAGMENT_SHADER_GLOBALS - -/* clang-format on */ - -#ifdef RENDER_DEPTH_DUAL_PARABOLOID - -in highp float dp_clip; - -#endif - -#ifdef USE_LIGHTING - -// This returns the G_GGX function divided by 2 cos_theta_m, where in practice cos_theta_m is either N.L or N.V. -// We're dividing this factor off because the overall term we'll end up looks like -// (see, for example, the first unnumbered equation in B. Burley, "Physically Based Shading at Disney", SIGGRAPH 2012): -// -// F(L.V) D(N.H) G(N.L) G(N.V) / (4 N.L N.V) -// -// We're basically regouping this as -// -// F(L.V) D(N.H) [G(N.L)/(2 N.L)] [G(N.V) / (2 N.V)] -// -// and thus, this function implements the [G(N.m)/(2 N.m)] part with m = L or V. -// -// The contents of the D and G (G1) functions (GGX) are taken from -// 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) - // Eq. (19), although see Heitz (2014) the about the problems with his derivation. - // It nevertheless approximates GGX well with k = alpha/2. - float k = 0.5 * alpha; - return 0.5 / (cos_theta_m * (1.0 - k) + k); - - // float cos2 = cos_theta_m * cos_theta_m; - // 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); -} - +#if defined(USE_LIGHT_DIRECTIONAL) || defined(USE_LIGHT_POSITIONAL) float D_GGX(float cos_theta_m, float alpha) { - float alpha2 = alpha * alpha; - float d = 1.0 + (alpha2 - 1.0) * cos_theta_m * cos_theta_m; - 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); - float s_x = alpha_x * cos_phi; - 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 a = cos_theta_m * alpha; + float k = alpha / (1.0 - cos_theta_m * cos_theta_m + a * a); + return k * k * (1.0 / M_PI); } -*/ -// 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); +// From Earl Hammon, Jr. "PBR Diffuse Lighting for GGX+Smith Microsurfaces" https://www.gdcvault.com/play/1024478/PBR-Diffuse-Lighting-for-GGX +float V_GGX(float NdotL, float NdotV, float alpha) { + return 0.5 / mix(2.0 * NdotL * NdotV, NdotL + NdotV, alpha); } -float D_GGX_anisotropic(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi, float NdotH) { +float D_GGX_anisotropic(float cos_theta_m, float alpha_x, float alpha_y, float cos_phi, float sin_phi) { float alpha2 = alpha_x * alpha_y; - highp vec3 v = vec3(alpha_y * cos_phi, alpha_x * sin_phi, alpha2 * NdotH); + highp vec3 v = vec3(alpha_y * cos_phi, alpha_x * sin_phi, alpha2 * cos_theta_m); 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); */ +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 SchlickFresnel(float u) { @@ -1082,109 +571,64 @@ float SchlickFresnel(float u) { return m2 * m2 * m; // pow(m,5) } -float GTR1(float NdotH, float a) { - if (a >= 1.0) - return 1.0 / M_PI; - float a2 = a * a; - float t = 1.0 + (a2 - 1.0) * NdotH * NdotH; - return (a2 - 1.0) / (M_PI * log(a2) * t); -} +void light_compute(vec3 N, vec3 L, vec3 V, float A, vec3 light_color, float attenuation, vec3 f0, uint orms, float specular_amount, vec3 albedo, inout float alpha, +#ifdef LIGHT_BACKLIGHT_USED + vec3 backlight, +#endif +#ifdef LIGHT_RIM_USED + float rim, float rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + float clearcoat, float clearcoat_roughness, vec3 vertex_normal, +#endif +#ifdef LIGHT_ANISOTROPY_USED + vec3 B, vec3 T, float anisotropy, +#endif + inout vec3 diffuse_light, inout vec3 specular_light) { -void light_compute( - vec3 N, - vec3 L, - vec3 V, - vec3 B, - vec3 T, - vec3 light_color, - vec3 attenuation, - vec3 diffuse_color, - vec3 transmission, - float specular_blob_intensity, - float roughness, - float metallic, - float specular, - float rim, - float rim_tint, - float clearcoat, - float clearcoat_roughness, - float anisotropy, - inout vec3 diffuse_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 + vec4 orms_unpacked = unpackUnorm4x8(orms); -//#define SRGB_APPROX(m_var) m_var = pow(m_var,0.4545454545); -/* -#define SRGB_APPROX(m_var) {\ - float S1 = sqrt(m_var);\ - float S2 = sqrt(S1);\ - float S3 = sqrt(S2);\ - m_var = 0.662002687 * S1 + 0.684122060 * S2 - 0.323583601 * S3 - 0.0225411470 * m_var;\ - } -*/ -#define SRGB_APPROX(m_var) + float roughness = orms_unpacked.y; + float metallic = orms_unpacked.z; #if defined(USE_LIGHT_SHADER_CODE) // light is written by the light shader vec3 normal = N; - vec3 albedo = diffuse_color; vec3 light = L; vec3 view = V; /* clang-format off */ -LIGHT_SHADER_CODE + +#CODE : LIGHT /* clang-format on */ #else - float NdotL = dot(N, L); + float NdotL = min(A + dot(N, L), 1.0); float cNdotL = max(NdotL, 0.0); // clamped NdotL float NdotV = dot(N, V); - float cNdotV = max(abs(NdotV), 1e-6); + float cNdotV = max(NdotV, 0.0); -#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_BLINN) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_USE_CLEARCOAT) +#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_CLEARCOAT_USED) 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); +#if defined(SPECULAR_SCHLICK_GGX) + float cNdotH = clamp(A + dot(N, H), 0.0, 1.0); #endif -#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_USE_CLEARCOAT) - float cLdotH = max(dot(L, H), 0.0); +#if defined(DIFFUSE_BURLEY) || defined(SPECULAR_SCHLICK_GGX) || defined(LIGHT_CLEARCOAT_USED) + float cLdotH = clamp(A + dot(L, H), 0.0, 1.0); #endif if (metallic < 1.0) { -#if defined(DIFFUSE_OREN_NAYAR) - vec3 diffuse_brdf_NL; -#else float diffuse_brdf_NL; // BRDF times N.L for calculating diffuse radiance -#endif #if defined(DIFFUSE_LAMBERT_WRAP) // energy conserving lambert wrap shader diffuse_brdf_NL = max(0.0, (NdotL + roughness) / ((1.0 + roughness) * (1.0 + roughness))); - -#elif defined(DIFFUSE_OREN_NAYAR) - - { - // see http://mimosa-pudica.net/improved-oren-nayar.html - float LdotV = dot(L, V); - - float s = LdotV - NdotL * NdotV; - float t = mix(1.0, max(NdotL, NdotV), step(0.0, s)); - - float sigma2 = roughness * roughness; // TODO: this needs checking - vec3 A = 1.0 + sigma2 * (-0.5 / (sigma2 + 0.33) + 0.17 * diffuse_color / (sigma2 + 0.13)); - float B = 0.45 * sigma2 / (sigma2 + 0.09); - - diffuse_brdf_NL = cNdotL * (A + vec3(B) * s / t) * (1.0 / M_PI); - } - #elif defined(DIFFUSE_TOON) diffuse_brdf_NL = smoothstep(-roughness, max(roughness, 0.01), NdotL); @@ -1196,230 +640,208 @@ LIGHT_SHADER_CODE 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); - float energyFactor = mix(roughness, 1.0, 1.0 / 1.51); - float fd90 = energyBias + 2.0 * VoH * VoH * roughness; - float f0 = 1.0; - float lightScatter = f0 + (fd90 - f0) * pow(1.0 - cNdotL, 5.0); - float viewScatter = f0 + (fd90 - f0) * pow(1.0 - cNdotV, 5.0); - - diffuse_brdf_NL = lightScatter * viewScatter * energyFactor; - */ } #else // lambert diffuse_brdf_NL = cNdotL * (1.0 / M_PI); #endif - SRGB_APPROX(diffuse_brdf_NL) - - diffuse_light += light_color * diffuse_color * diffuse_brdf_NL * attenuation; + diffuse_light += light_color * diffuse_brdf_NL * attenuation; -#if defined(TRANSMISSION_USED) - diffuse_light += light_color * diffuse_color * (vec3(1.0 / M_PI) - diffuse_brdf_NL) * transmission * attenuation; +#if defined(LIGHT_BACKLIGHT_USED) + diffuse_light += light_color * (vec3(1.0 / M_PI) - diffuse_brdf_NL) * backlight * attenuation; #endif -#if defined(LIGHT_USE_RIM) +#if defined(LIGHT_RIM_USED) float rim_light = pow(max(0.0, 1.0 - cNdotV), max(0.0, (1.0 - roughness) * 16.0)); - diffuse_light += rim_light * rim * mix(vec3(1.0), diffuse_color, rim_tint) * light_color; + diffuse_light += rim_light * rim * mix(vec3(1.0), albedo, rim_tint) * light_color; #endif } - if (roughness > 0.0) { - -#if defined(SPECULAR_SCHLICK_GGX) - vec3 specular_brdf_NL = vec3(0.0); -#else - float specular_brdf_NL = 0.0; -#endif + if (roughness > 0.0) { // FIXME: roughness == 0 should not disable specular light entirely -#if defined(SPECULAR_BLINN) - - //normalized blinn - float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; - float blinn = pow(cNdotH, shininess) * cNdotL; - blinn *= (shininess + 8.0) * (1.0 / (8.0 * M_PI)); - specular_brdf_NL = blinn; - -#elif defined(SPECULAR_PHONG) - - vec3 R = normalize(-reflect(L, N)); - 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) * (1.0 / (8.0 * M_PI)); - specular_brdf_NL = (phong) / max(4.0 * cNdotV * cNdotL, 0.75); + // D -#elif defined(SPECULAR_TOON) +#if defined(SPECULAR_TOON) vec3 R = normalize(-reflect(L, N)); float RdotV = dot(R, V); float mid = 1.0 - roughness; mid *= mid; - specular_brdf_NL = smoothstep(mid - roughness * 0.5, mid + roughness * 0.5, RdotV) * mid; + float intensity = smoothstep(mid - roughness * 0.5, mid + roughness * 0.5, RdotV) * mid; + diffuse_light += light_color * intensity * attenuation * specular_amount; // write to diffuse_light, as in toon shading you generally want no reflection #elif defined(SPECULAR_DISABLED) // none.. + #elif defined(SPECULAR_SCHLICK_GGX) // shlick+ggx as default - -#if defined(LIGHT_USE_ANISOTROPY) float alpha_ggx = roughness * roughness; +#if defined(LIGHT_ANISOTROPY_USED) + float aspect = sqrt(1.0 - anisotropy * 0.9); 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, cNdotH); - //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); float G = V_GGX_anisotropic(ax, ay, dot(T, V), dot(T, L), dot(B, V), dot(B, L), cNdotV, cNdotL); - -#else - float alpha_ggx = roughness * roughness; +#else // LIGHT_ANISOTROPY_USED 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 - vec3 f0 = F0(metallic, specular, diffuse_color); +#endif // LIGHT_ANISOTROPY_USED + // F float cLdotH5 = SchlickFresnel(cLdotH); vec3 F = mix(vec3(cLdotH5), vec3(1.0), f0); - specular_brdf_NL = cNdotL * D * F * G; + vec3 specular_brdf_NL = cNdotL * D * F * G; + specular_light += specular_brdf_NL * light_color * attenuation * specular_amount; #endif - SRGB_APPROX(specular_brdf_NL) - specular_light += specular_brdf_NL * light_color * specular_blob_intensity * attenuation; - -#if defined(LIGHT_USE_CLEARCOAT) +#if defined(LIGHT_CLEARCOAT_USED) + // Clearcoat ignores normal_map, use vertex normal instead + float ccNdotL = max(min(A + dot(vertex_normal, L), 1.0), 0.0); + float ccNdotH = clamp(A + dot(vertex_normal, H), 0.0, 1.0); + float ccNdotV = max(dot(vertex_normal, V), 1e-4); #if !defined(SPECULAR_SCHLICK_GGX) float cLdotH5 = SchlickFresnel(cLdotH); #endif - float Dr = GTR1(cNdotH, mix(.1, .001, clearcoat_roughness)); + float Dr = D_GGX(ccNdotH, mix(0.001, 0.1, clearcoat_roughness)); + float Gr = 0.25 / (cLdotH * cLdotH); 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 clearcoat_specular_brdf_NL = 0.25 * clearcoat * Gr * Fr * Dr * cNdotL; + float clearcoat_specular_brdf_NL = clearcoat * Gr * Fr * Dr * cNdotL; - specular_light += clearcoat_specular_brdf_NL * light_color * specular_blob_intensity * attenuation; -#endif + specular_light += clearcoat_specular_brdf_NL * light_color * attenuation * specular_amount; + // TODO: Clearcoat adds light to the scene right now (it is non-energy conserving), both diffuse and specular need to be scaled by (1.0 - FR) + // but to do so we need to rearrange this entire function +#endif // LIGHT_CLEARCOAT_USED } #ifdef USE_SHADOW_TO_OPACITY - alpha = min(alpha, clamp(1.0 - length(attenuation), 0.0, 1.0)); + alpha = min(alpha, clamp(1.0 - attenuation, 0.0, 1.0)); #endif -#endif //defined(USE_LIGHT_SHADER_CODE) +#endif //defined(LIGHT_CODE_USED) } -#endif -// shadows - -#ifdef USE_SHADOW - -#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 +float get_omni_attenuation(float distance, float inv_range, float decay) { + float nd = distance * inv_range; + nd *= nd; + nd *= nd; // nd^4 + nd = max(1.0 - nd, 0.0); + nd *= nd; // nd^2 + return nd * pow(max(distance, 0.0001), -decay); +} +void light_process_omni(uint idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 f0, uint orms, float shadow, vec3 albedo, inout float alpha, +#ifdef LIGHT_BACKLIGHT_USED + vec3 backlight, #endif - -#define SAMPLE_SHADOW_TEXEL(p_shadow, p_pos, p_depth) step(p_depth, SHADOW_DEPTH(texture(p_shadow, p_pos))) -#define SAMPLE_SHADOW_TEXEL_PROJ(p_shadow, p_pos) step(p_pos.z, SHADOW_DEPTH(textureProj(p_shadow, p_pos))) - -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); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(0.0, shadow_pixel_size.y), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(0.0, -shadow_pixel_size.y), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(shadow_pixel_size.x, shadow_pixel_size.y), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(-shadow_pixel_size.x, shadow_pixel_size.y), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(shadow_pixel_size.x, -shadow_pixel_size.y), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(-shadow_pixel_size.x, -shadow_pixel_size.y), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(shadow_pixel_size.x * 2.0, 0.0), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(-shadow_pixel_size.x * 2.0, 0.0), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(0.0, shadow_pixel_size.y * 2.0), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(0.0, -shadow_pixel_size.y * 2.0), depth); - return avg * (1.0 / 13.0); +#ifdef LIGHT_TRANSMITTANCE_USED + vec4 transmittance_color, + float transmittance_depth, + float transmittance_boost, #endif - -#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); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(0.0, shadow_pixel_size.y), depth); - avg += SAMPLE_SHADOW_TEXEL(shadow, pos + vec2(0.0, -shadow_pixel_size.y), depth); - return avg * (1.0 / 5.0); - +#ifdef LIGHT_RIM_USED + float rim, float rim_tint, #endif +#ifdef LIGHT_CLEARCOAT_USED + float clearcoat, float clearcoat_roughness, vec3 vertex_normal, +#endif +#ifdef LIGHT_ANISOTROPY_USED + vec3 binormal, vec3 tangent, float anisotropy, +#endif + inout vec3 diffuse_light, inout vec3 specular_light) { + vec3 light_rel_vec = omni_lights[idx].position - vertex; + float light_length = length(light_rel_vec); + float omni_attenuation = get_omni_attenuation(light_length, omni_lights[idx].inv_radius, omni_lights[idx].attenuation); + vec3 light_attenuation = vec3(omni_attenuation); + vec3 color = omni_lights[idx].color; + float size_A = 0.0; + + if (omni_lights.data[idx].size > 0.0) { + float t = omni_lights[idx].size / max(0.001, light_length); + size_A = max(0.0, 1.0 - 1 / sqrt(1 + t * t)); + } -#if !defined(SHADOW_MODE_PCF_5) || !defined(SHADOW_MODE_PCF_13) - - return SAMPLE_SHADOW_TEXEL_PROJ(shadow, spos); + light_compute(normal, normalize(light_rel_vec), eye_vec, size_A, color, light_attenuation, f0, orms, omni_lights[idx].specular_amount, albedo, alpha, +#ifdef LIGHT_BACKLIGHT_USED + backlight, +#endif +#ifdef LIGHT_RIM_USED + rim * omni_attenuation, rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_roughness, vertex_normal, #endif +#ifdef LIGHT_ANISOTROPY_USED + binormal, tangent, anisotropy, +#endif + diffuse_light, + specular_light); } +void light_process_spot(uint idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 f0, uint orms, float shadow, vec3 albedo, inout float alpha, +#ifdef LIGHT_BACKLIGHT_USED + vec3 backlight, #endif - -#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) - -#if defined(USE_VERTEX_LIGHTING) - -in vec4 fog_interp; - -#else -uniform mediump vec4 fog_color_base; -#ifdef LIGHT_MODE_DIRECTIONAL -uniform mediump vec4 fog_sun_color_amount; +#ifdef LIGHT_RIM_USED + float rim, float rim_tint, +#endif +#ifdef LIGHT_CLEARCOAT_USED + float clearcoat, float clearcoat_roughness, vec3 vertex_normal, #endif +#ifdef LIGHT_ANISOTROPY_USED + vec3 binormal, vec3 tangent, float anisotropy, +#endif + inout vec3 diffuse_light, + inout vec3 specular_light) { -uniform bool fog_transmit_enabled; -uniform mediump float fog_transmit_curve; + vec3 light_rel_vec = spot_lights[idx].position - vertex; + float light_length = length(light_rel_vec); + float spot_attenuation = get_omni_attenuation(light_length, spot_lights[idx].inv_radius, spot_lights[idx].attenuation); + vec3 spot_dir = spot_lights[idx].direction; + float scos = max(dot(-normalize(light_rel_vec), spot_dir), spot_lights[idx].cone_angle); + float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_lights[idx].cone_angle)); + spot_attenuation *= 1.0 - pow(spot_rim, spot_lights[idx].cone_attenuation); + float light_attenuation = spot_attenuation; + vec3 color = spot_lights[idx].color; + + float size_A = 0.0; + + if (spot_lights.data[idx].size > 0.0) { + float t = spot_lights.data[idx].size / max(0.001, light_length); + size_A = max(0.0, 1.0 - 1 / sqrt(1 + t * t)); + } -#ifdef FOG_DEPTH_ENABLED -uniform highp float fog_depth_begin; -uniform mediump float fog_depth_curve; -uniform mediump float fog_max_distance; + light_compute(normal, normalize(light_rel_vec), eye_vec, size_A, color, light_attenuation, f0, orms, spot_lights[idx].specular_amount, albedo, alpha, +#ifdef LIGHT_BACKLIGHT_USED + backlight, #endif - -#ifdef FOG_HEIGHT_ENABLED -uniform highp float fog_height_min; -uniform highp float fog_height_max; -uniform mediump float fog_height_curve; +#ifdef LIGHT_RIM_USED + rim * spot_attenuation, rim_tint, #endif - -#endif //vertex lit -#endif //fog +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_roughness, vertex_normal, +#endif +#ifdef LIGHT_ANISOTROPY_USED + binormal, tangent, anisotropy, +#endif + diffuse_light, specular_light); +} +#endif // defined(USE_LIGHT_DIRECTIONAL) || defined(USE_LIGHT_POSITIONAL) void main() { -#ifdef RENDER_DEPTH_DUAL_PARABOLOID - - if (dp_clip > 0.0) - discard; -#endif - highp vec3 vertex = vertex_interp; + //lay out everything, whatever is unused is optimized away anyway + vec3 vertex = vertex_interp; vec3 view = -normalize(vertex_interp); vec3 albedo = vec3(1.0); - vec3 transmission = vec3(0.0); + vec3 backlight = vec3(0.0); + vec4 transmittance_color = vec4(0.0, 0.0, 0.0, 1.0); + float transmittance_depth = 0.0; + float transmittance_boost = 0.0; float metallic = 0.0; float specular = 0.5; vec3 emission = vec3(0.0); @@ -1430,617 +852,235 @@ void main() { float clearcoat_roughness = 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; + vec4 fog = vec4(0.0); +#if defined(CUSTOM_RADIANCE_USED) + vec4 custom_radiance = vec4(0.0); +#endif +#if defined(CUSTOM_IRRADIANCE_USED) + vec4 custom_irradiance = vec4(0.0); #endif -#if defined(ENABLE_AO) float ao = 1.0; float ao_light_affect = 0.0; -#endif -#if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) - vec3 binormal = normalize(binormal_interp) * side; - vec3 tangent = normalize(tangent_interp) * side; + float alpha = 1.0; + +#if defined(TANGENT_USED) || defined(NORMAL_MAP_USED) || defined(LIGHT_ANISOTROPY_USED) + vec3 binormal = normalize(binormal_interp); + vec3 tangent = normalize(tangent_interp); #else vec3 binormal = vec3(0.0); vec3 tangent = vec3(0.0); #endif - vec3 normal = normalize(normal_interp) * side; -#if defined(ENABLE_NORMALMAP) - vec3 normalmap = vec3(0.5); +#ifdef NORMAL_USED + vec3 normal = normalize(normal_interp); + +#if defined(DO_SIDE_CHECK) + if (!gl_FrontFacing) { + normal = -normal; + } #endif - float normaldepth = 1.0; -#if defined(ALPHA_SCISSOR_USED) - float alpha_scissor = 0.5; +#endif //NORMAL_USED + +#ifdef UV_USED + vec2 uv = uv_interp; #endif -#if defined(SCREEN_UV_USED) - vec2 screen_uv = gl_FragCoord.xy * screen_pixel_size; +#if defined(UV2_USED) || defined(USE_LIGHTMAP) + vec2 uv2 = uv2_interp; #endif - { - /* clang-format off */ +#if defined(COLOR_USED) + vec4 color = color_interp; +#endif -FRAGMENT_SHADER_CODE +#if defined(NORMAL_MAP_USED) - /* clang-format on */ - } + vec3 normal_map = vec3(0.5); +#endif -#if defined(ENABLE_NORMALMAP) - normalmap.xy = normalmap.xy * 2.0 - 1.0; - normalmap.z = sqrt(max(0.0, 1.0 - dot(normalmap.xy, normalmap.xy))); + float normal_map_depth = 1.0; - normal = normalize(mix(normal_interp, tangent * normalmap.x + binormal * normalmap.y + normal * normalmap.z, normaldepth)) * side; - //normal = normalmap; -#endif + vec2 screen_uv = gl_FragCoord.xy * scene_data.screen_pixel_size + scene_data.screen_pixel_size * 0.5; //account for center - normal = normalize(normal); + float sss_strength = 0.0; - vec3 N = normal; +#ifdef ALPHA_SCISSOR_USED + float alpha_scissor_threshold = 1.0; +#endif // ALPHA_SCISSOR_USED - vec3 specular_light = vec3(0.0, 0.0, 0.0); - vec3 diffuse_light = vec3(0.0, 0.0, 0.0); - vec3 ambient_light = vec3(0.0, 0.0, 0.0); +#ifdef ALPHA_HASH_USED + float alpha_hash_scale = 1.0; +#endif // ALPHA_HASH_USED - vec3 eye_position = view; +#ifdef ALPHA_ANTIALIASING_EDGE_USED + float alpha_antialiasing_edge = 0.0; + vec2 alpha_texture_coordinate = vec2(0.0, 0.0); +#endif // ALPHA_ANTIALIASING_EDGE_USED + { +#CODE : FRAGMENT + } -#if !defined(USE_SHADOW_TO_OPACITY) +#ifndef USE_SHADOW_TO_OPACITY #if defined(ALPHA_SCISSOR_USED) - if (alpha < alpha_scissor) { + if (alpha < alpha_scissor_threshold) { discard; } #endif // ALPHA_SCISSOR_USED -#ifdef USE_DEPTH_PREPASS - if (alpha < 0.1) { +#ifdef USE_OPAQUE_PREPASS +#if !defined(ALPHA_SCISSOR_USED) + + if (alpha < scene_data.opaque_prepass_threshold) { discard; } -#endif // USE_DEPTH_PREPASS -#endif // !USE_SHADOW_TO_OPACITY +#endif // not ALPHA_SCISSOR_USED +#endif // USE_OPAQUE_PREPASS -#ifdef BASE_PASS - - // IBL precalculations - float ndotv = clamp(dot(normal, eye_position), 0.0, 1.0); - vec3 f0 = F0(metallic, specular, albedo); - vec3 F = f0 + (max(vec3(1.0 - roughness), f0) - f0) * pow(1.0 - ndotv, 5.0); - -#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); - ref_vec = normalize((radiance_inverse_xform * vec4(ref_vec, 0.0)).xyz); - - ref_vec.z *= -1.0; - - specular_light = textureCubeLod(radiance_map, ref_vec, roughness * RADIANCE_MAX_LOD).xyz * bg_energy; -#ifndef USE_LIGHTMAP - { - vec3 ambient_dir = normalize((radiance_inverse_xform * vec4(normal, 0.0)).xyz); - vec3 env_ambient = textureCubeLod(radiance_map, ambient_dir, 4.0).xyz * bg_energy; - env_ambient *= 1.0 - F; +#endif // !USE_SHADOW_TO_OPACITY - ambient_light = mix(ambient_color.rgb, env_ambient, ambient_sky_contribution); - } -#endif +#ifdef NORMAL_MAP_USED -#else + normal_map.xy = normal_map.xy * 2.0 - 1.0; + normal_map.z = sqrt(max(0.0, 1.0 - dot(normal_map.xy, normal_map.xy))); //always ignore Z, as it can be RG packed, Z may be pos/neg, etc. - ambient_light = ambient_color.rgb; - specular_light = bg_color.rgb * bg_energy; + normal = normalize(mix(normal, tangent * normal_map.x + binormal * normal_map.y + normal * normal_map.z, normal_map_depth)); #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 LIGHT_ANISOTROPY_USED -#ifdef USE_REFLECTION_PROBE1 + if (anisotropy > 0.01) { + //rotation matrix + mat3 rot = mat3(tangent, binormal, normal); + //make local to space + tangent = normalize(rot * vec3(anisotropy_flow.x, anisotropy_flow.y, 0.0)); + binormal = normalize(rot * vec3(-anisotropy_flow.y, anisotropy_flow.x, 0.0)); + } - 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 +#ifndef MODE_RENDER_DEPTH + vec3 f0 = F0(metallic, specular, albedo); + // Convert albedo to linear. Approximation from: http://chilliant.blogspot.com/2012/08/srgb-approximations-for-hlsl.html + albedo = albedo * (albedo * (albedo * 0.305306011 + 0.682171111) + 0.012522878); + vec3 specular_light = vec3(0.0, 0.0, 0.0); + vec3 diffuse_light = vec3(0.0, 0.0, 0.0); + vec3 ambient_light = vec3(0.0, 0.0, 0.0); -#ifdef USE_REFLECTION_PROBE2 +#ifdef BASE_PASS + /////////////////////// LIGHTING ////////////////////////////// - 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); + // IBL precalculations + float ndotv = clamp(dot(normal, view), 0.0, 1.0); + vec3 F = f0 + (max(vec3(1.0 - roughness), f0) - f0) * pow(1.0 - ndotv, 5.0); -#endif // USE_REFLECTION_PROBE2 + // Calculate IBL + // Calculate Reflection probes + // Caclculate Lightmaps - if (reflection_accum.a > 0.0) { - specular_light = reflection_accum.rgb / reflection_accum.a; - } + float specular_blob_intensity = 1.0; -#ifndef USE_LIGHTMAP - if (ambient_accum.a > 0.0) { - ambient_light = ambient_accum.rgb / ambient_accum.a; - } +#if defined(SPECULAR_TOON) + specular_blob_intensity *= specular * 2.0; #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 computed before lighting happens, - // but after environment and reflection probes are added - //TODO: this curve is not really designed for gammaspace, should be adjusted + // scales the specular reflections, needs to be be computed before lighting happens, + // but after environment, GI, and reflection probes are added + // Environment brdf approximation (Lazarov 2013) + // see https://www.unrealengine.com/en-US/blog/physically-based-shading-on-mobile 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, view), 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; - specular_light *= env.x * F + env.y; - + specular_light *= env.x * f0 + env.y; #endif } -#ifdef USE_LIGHTMAP - //ambient light will come entirely from lightmap is lightmap is used - ambient_light = texture(lightmap, uv2_interp).rgb * lightmap_energy; -#endif - -#ifdef USE_LIGHTMAP_CAPTURE - { - vec3 cone_dirs[12]; - cone_dirs[0] = vec3(0.0, 0.0, 1.0); - cone_dirs[1] = vec3(0.866025, 0.0, 0.5); - cone_dirs[2] = vec3(0.267617, 0.823639, 0.5); - cone_dirs[3] = vec3(-0.700629, 0.509037, 0.5); - cone_dirs[4] = vec3(-0.700629, -0.509037, 0.5); - cone_dirs[5] = vec3(0.267617, -0.823639, 0.5); - cone_dirs[6] = vec3(0.0, 0.0, -1.0); - cone_dirs[7] = vec3(0.866025, 0.0, -0.5); - cone_dirs[8] = vec3(0.267617, 0.823639, -0.5); - cone_dirs[9] = vec3(-0.700629, 0.509037, -0.5); - cone_dirs[10] = vec3(-0.700629, -0.509037, -0.5); - cone_dirs[11] = vec3(0.267617, -0.823639, -0.5); - - vec3 local_normal = normalize(inv_view_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 - -// -// Lighting -// -#ifdef USE_LIGHTING - -#ifndef USE_VERTEX_LIGHTING - vec3 L; -#endif - vec3 light_att = vec3(1.0); - -#ifdef LIGHT_MODE_OMNI - -#ifndef USE_VERTEX_LIGHTING - vec3 light_vec = light_position - vertex; - 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); - - light_att = vec3(omni_attenuation); - } else { - light_att = vec3(0.0); - } - L = normalize(light_vec); - -#endif - -#if !defined(SHADOWS_DISABLED) - -#ifdef USE_SHADOW - { - highp vec4 splane = shadow_coord; - float shadow_len = length(splane.xyz); - - splane.xyz = normalize(splane.xyz); - - vec4 clamp_rect = light_clamp; - - if (splane.z >= 0.0) { - splane.z += 1.0; - - clamp_rect.y += clamp_rect.w; - } else { - splane.z = 1.0 - splane.z; - } - - splane.xy /= splane.z; - splane.xy = splane.xy * 0.5 + 0.5; - 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); - - light_att *= mix(shadow_color.rgb, vec3(1.0), shadow); - } -#endif - -#endif //SHADOWS_DISABLED - -#endif //type omni - -#ifdef LIGHT_MODE_DIRECTIONAL - -#ifndef USE_VERTEX_LIGHTING - vec3 light_vec = -light_direction; - L = normalize(light_vec); -#endif - float depth_z = -vertex.z; - -#if !defined(SHADOWS_DISABLED) +#endif // BASE_PASS -#ifdef USE_SHADOW + //this saves some VGPRs + uint orms = packUnorm4x8(vec4(ao, roughness, metallic, specular)); -#ifdef USE_VERTEX_LIGHTING - //compute shadows in a mobile friendly way +#ifdef USE_LIGHT_DIRECTIONAL -#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); + float size_A = directional_lights[i].size; - 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; + light_compute(normal, directional_lights[i].direction, normalize(view), size_A, directional_lights[i].color * directional_lights[i].energy, shadow, f0, orms, 1.0, albedo, alpha, +#ifdef LIGHT_BACKLIGHT_USED + backlight, #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); +#ifdef LIGHT_RIM_USED + rim, rim_tint, #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); +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_roughness, normalize(normal_interp), #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); - } +#ifdef LIGHT_ANISOTROPY_USED + binormal, + tangent, anisotropy, #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); + diffuse_light, + specular_light); - if (depth_z < light_split_offsets.y) { - float shadow_att = 1.0; - float pssm_fade = 0.0; +#endif //#USE_LIGHT_DIRECTIONAL -#ifdef LIGHT_USE_PSSM_BLEND - float shadow_att2 = 1.0; - float pssm_blend = 0.0; - bool use_blend = true; +#ifdef USE_LIGHT_POSITIONAL + float shadow = 0.0; + for (int i = 0; i < omni_light_count; i++) { + light_process_omni(omni_light_indices[i], vertex, view, normal, f0, orms, shadow, albedo, alpha, +#ifdef LIGHT_BACKLIGHT_USED + backlight, #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); +#ifdef LIGHT_RIM_USED + rim, + rim_tint, #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; +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_roughness, normalize(normal_interp), #endif - } -#ifdef LIGHT_USE_PSSM_BLEND - if (use_blend) { - shadow_att = mix(shadow_att, shadow_att2, pssm_blend); - } +#ifdef LIGHT_ANISOTROPY_USED + tangent, binormal, anisotropy, #endif - light_att *= mix(shadow_color.rgb, vec3(1.0), shadow_att); + diffuse_light, specular_light); } -#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) { -#elif defined(LIGHT_USE_PSSM2) - if (depth_z < light_split_offsets.y) { -#else - if (depth_z < light_split_offsets.x) { -#endif //pssm2 - - highp vec4 pssm_coord; - float pssm_fade = 0.0; - -#ifdef LIGHT_USE_PSSM_BLEND - float pssm_blend; - 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) { - pssm_coord = shadow_coord; - -#ifdef LIGHT_USE_PSSM_BLEND - pssm_coord2 = shadow_coord2; - - pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); -#endif - } else { - pssm_coord = shadow_coord2; - -#ifdef LIGHT_USE_PSSM_BLEND - pssm_coord2 = shadow_coord3; - - pssm_blend = smoothstep(light_split_offsets.x, light_split_offsets.y, depth_z); -#endif - } - } else { - if (depth_z < light_split_offsets.z) { - pssm_coord = shadow_coord3; - -#if defined(LIGHT_USE_PSSM_BLEND) - pssm_coord2 = shadow_coord4; - pssm_blend = smoothstep(light_split_offsets.y, light_split_offsets.z, depth_z); + for (int i = 0; i < spot_light_count; i++) { + light_process_spot(spot_light_indices[i], vertex, view, normal, f0, orms, shadow, albedo, alpha, +#ifdef LIGHT_BACKLIGHT_USED + backlight, #endif - - } else { - pssm_coord = shadow_coord4; - pssm_fade = smoothstep(light_split_offsets.z, light_split_offsets.w, depth_z); - -#if defined(LIGHT_USE_PSSM_BLEND) - use_blend = false; -#endif - } - } - -#endif // LIGHT_USE_PSSM4 - -#ifdef LIGHT_USE_PSSM2 - if (depth_z < light_split_offsets.x) { - pssm_coord = shadow_coord; - -#ifdef LIGHT_USE_PSSM_BLEND - pssm_coord2 = shadow_coord2; - pssm_blend = smoothstep(0.0, light_split_offsets.x, depth_z); +#ifdef LIGHT_RIM_USED + rim, + rim_tint, #endif - } else { - 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; +#ifdef LIGHT_CLEARCOAT_USED + clearcoat, clearcoat_roughness, normalize(normal_interp), #endif - } - -#endif // LIGHT_USE_PSSM2 - -#if !defined(LIGHT_USE_PSSM4) && !defined(LIGHT_USE_PSSM2) - { - pssm_coord = shadow_coord; - } -#endif - - 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), pssm_blend); - } +#ifdef LIGHT_ANISOTROPY_USED + tangent, + binormal, anisotropy, #endif - - light_att *= mix(shadow_color.rgb, vec3(1.0), shadow); - } + diffuse_light, specular_light); } -#endif //use vertex lighting - -#endif //use shadow - -#endif // SHADOWS_DISABLED - -#endif - -#ifdef LIGHT_MODE_SPOT - - light_att = vec3(1.0); - -#ifndef USE_VERTEX_LIGHTING - - vec3 light_rel_vec = light_position - vertex; - float light_length = length(light_rel_vec); - float normalized_distance = light_length / light_range; - 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 angle = dot(-normalize(light_rel_vec), spot_dir); - - 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); - } - - L = normalize(light_rel_vec); - -#endif - -#if !defined(SHADOWS_DISABLED) - -#ifdef USE_SHADOW - { - highp vec4 splane = shadow_coord; - - float shadow = sample_shadow(light_shadow_atlas, splane); - light_att *= mix(shadow_color.rgb, vec3(1.0), shadow); - } -#endif - -#endif // SHADOWS_DISABLED - -#endif // LIGHT_MODE_SPOT - -#ifdef USE_VERTEX_LIGHTING - //vertex lighting - - specular_light += specular_interp * specular_blob_intensity * light_att; - diffuse_light += diffuse_interp * albedo * light_att; - -#else - //fragment lighting - light_compute( - normal, - L, - eye_position, - binormal, - tangent, - light_color.xyz, - light_att, - albedo, - transmission, - specular_blob_intensity * light_specular, - roughness, - metallic, - specular, - rim, - rim_tint, - clearcoat, - clearcoat_roughness, - anisotropy, - diffuse_light, - specular_light, - alpha); - -#endif //vertex lighting - -#endif //USE_LIGHTING - //compute and merge - -#ifdef USE_SHADOW_TO_OPACITY +#endif // USE_LIGHT_POSITIONAL +#endif //!MODE_RENDER_DEPTH +#if defined(USE_SHADOW_TO_OPACITY) alpha = min(alpha, clamp(length(ambient_light), 0.0, 1.0)); #if defined(ALPHA_SCISSOR_USED) @@ -2049,105 +1089,50 @@ FRAGMENT_SHADER_CODE } #endif // ALPHA_SCISSOR_USED -#ifdef USE_DEPTH_PREPASS - if (alpha < 0.1) { +#ifdef USE_OPAQUE_PREPASS +#if !defined(ALPHA_SCISSOR_USED) + + if (alpha < opaque_prepass_threshold) { discard; } -#endif // USE_DEPTH_PREPASS -#endif // !USE_SHADOW_TO_OPACITY +#endif // not ALPHA_SCISSOR_USED +#endif // USE_OPAQUE_PREPASS -#ifndef RENDER_DEPTH +#endif // USE_SHADOW_TO_OPACITY -#ifdef SHADELESS +#ifdef MODE_RENDER_DEPTH +//nothing happens, so a tree-ssa optimizer will result in no fragment shader :) +#else // !MODE_RENDER_DEPTH - frag_color = vec4(albedo, alpha); -#else - - ambient_light *= albedo; - -#if defined(ENABLE_AO) - ambient_light *= ao; - ao_light_affect = mix(1.0, ao, ao_light_affect); - specular_light *= ao_light_affect; - diffuse_light *= ao_light_affect; -#endif + specular_light *= scene_data.reflection_multiplier; + ambient_light *= albedo; //ambient must be multiplied by albedo at the end + // base color remapping diffuse_light *= 1.0 - metallic; ambient_light *= 1.0 - metallic; +#ifdef MODE_UNSHADED + frag_color = vec4(albedo, alpha); +#else frag_color = vec4(ambient_light + diffuse_light + specular_light, alpha); - - //add emission if in base pass #ifdef BASE_PASS frag_color.rgb += emission; #endif - // frag_color = vec4(normal, 1.0); - -//apply fog -#if defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) - -#if defined(USE_VERTEX_LIGHTING) - -#if defined(BASE_PASS) - frag_color.rgb = mix(frag_color.rgb, fog_interp.rgb, fog_interp.a); -#else - frag_color.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 +#endif //MODE_UNSHADED - { - float fog_z = smoothstep(fog_depth_begin, fog_max_distance, length(vertex)); + // Tonemap before writing as we are writing to an sRGB framebuffer + frag_color.rgb *= exposure; + frag_color.rgb = apply_tonemapping(frag_color.rgb, white); + frag_color.rgb = linear_to_srgb(frag_color.rgb); - fog_amount = pow(fog_z, fog_depth_curve) * fog_color_base.a; - - if (fog_transmit_enabled) { - vec3 total_light = frag_color.rgb; - float transmit = pow(fog_z, fog_transmit_curve); - fog_color = mix(max(total_light, fog_color), fog_color, transmit); - } - } +#ifdef USE_BCS + frag_color.rgb = apply_bcs(frag_color.rgb, bcs); #endif -#ifdef FOG_HEIGHT_ENABLED - { - float y = (inv_view_matrix * vec4(vertex, 1.0)).y; - fog_amount = max(fog_amount, pow(smoothstep(fog_height_min, fog_height_max, y), fog_height_curve)); - } +#ifdef USE_COLOR_CORRECTION + frag_color.rgb = apply_color_correction(frag_color.rgb, color_correction); #endif -#if defined(BASE_PASS) - frag_color.rgb = mix(frag_color.rgb, fog_color, fog_amount); -#else - frag_color.rgb *= (1.0 - fog_amount); -#endif // BASE_PASS - -#endif //use vertex lit - -#endif // defined(FOG_DEPTH_ENABLED) || defined(FOG_HEIGHT_ENABLED) - -#endif //unshaded - -#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); - frag_color = comp; - -#endif -#endif +#endif //!MODE_RENDER_DEPTH } diff --git a/drivers/gles3/shaders/stdlib_inc.glsl b/drivers/gles3/shaders/stdlib_inc.glsl index 2eddf9d479..3d976e9ab8 100644 --- a/drivers/gles3/shaders/stdlib_inc.glsl +++ b/drivers/gles3/shaders/stdlib_inc.glsl @@ -1,5 +1,5 @@ -//TODO: only needed by GLES_OVER_GL +#ifdef USE_GLES_OVER_GL uint float2half(uint f) { return ((f >> uint(16)) & uint(0x8000)) | ((((f & uint(0x7f800000)) - uint(0x38000000)) >> uint(13)) & uint(0x7c00)) | @@ -56,3 +56,4 @@ vec4 unpackSnorm4x8(uint p) { vec4 v = vec4(float(p & uint(0xffff)), float((p >> uint(8)) & uint(0xffff)), float((p >> uint(16)) & uint(0xffff)), float(p >> uint(24))); return clamp((v - vec4(127.0)) * vec4(0.00787401574), vec4(-1.0), vec4(1.0)); } +#endif diff --git a/drivers/gles3/storage/material_storage.cpp b/drivers/gles3/storage/material_storage.cpp index 0641b4e87b..a3111da28a 100644 --- a/drivers/gles3/storage/material_storage.cpp +++ b/drivers/gles3/storage/material_storage.cpp @@ -900,6 +900,42 @@ _FORCE_INLINE_ static void _fill_std140_ubo_empty(ShaderLanguage::DataType type, /////////////////////////////////////////////////////////////////////////// // MaterialData +// Look up table to translate ShaderLanguage::DataType to GL_TEXTURE_* +static const GLenum target_from_type[ShaderLanguage::TYPE_MAX] = { + GL_TEXTURE_2D, // TYPE_VOID, + GL_TEXTURE_2D, // TYPE_BOOL, + GL_TEXTURE_2D, // TYPE_BVEC2, + GL_TEXTURE_2D, // TYPE_BVEC3, + GL_TEXTURE_2D, // TYPE_BVEC4, + GL_TEXTURE_2D, // TYPE_INT, + GL_TEXTURE_2D, // TYPE_IVEC2, + GL_TEXTURE_2D, // TYPE_IVEC3, + GL_TEXTURE_2D, // TYPE_IVEC4, + GL_TEXTURE_2D, // TYPE_UINT, + GL_TEXTURE_2D, // TYPE_UVEC2, + GL_TEXTURE_2D, // TYPE_UVEC3, + GL_TEXTURE_2D, // TYPE_UVEC4, + GL_TEXTURE_2D, // TYPE_FLOAT, + GL_TEXTURE_2D, // TYPE_VEC2, + GL_TEXTURE_2D, // TYPE_VEC3, + GL_TEXTURE_2D, // TYPE_VEC4, + GL_TEXTURE_2D, // TYPE_MAT2, + GL_TEXTURE_2D, // TYPE_MAT3, + GL_TEXTURE_2D, // TYPE_MAT4, + GL_TEXTURE_2D, // TYPE_SAMPLER2D, + GL_TEXTURE_2D, // TYPE_ISAMPLER2D, + GL_TEXTURE_2D, // TYPE_USAMPLER2D, + GL_TEXTURE_2D_ARRAY, // TYPE_SAMPLER2DARRAY, + GL_TEXTURE_2D_ARRAY, // TYPE_ISAMPLER2DARRAY, + GL_TEXTURE_2D_ARRAY, // TYPE_USAMPLER2DARRAY, + GL_TEXTURE_3D, // TYPE_SAMPLER3D, + GL_TEXTURE_3D, // TYPE_ISAMPLER3D, + GL_TEXTURE_3D, // TYPE_USAMPLER3D, + GL_TEXTURE_CUBE_MAP, // TYPE_SAMPLERCUBE, + GL_TEXTURE_CUBE_MAP, // TYPE_SAMPLERCUBEARRAY, + GL_TEXTURE_2D, // TYPE_STRUCT +}; + void MaterialData::update_uniform_buffer(const Map<StringName, ShaderLanguage::ShaderNode::Uniform> &p_uniforms, const uint32_t *p_uniform_offsets, const Map<StringName, Variant> &p_parameters, uint8_t *p_buffer, uint32_t p_buffer_size, bool p_use_linear_color) { MaterialStorage *material_storage = MaterialStorage::get_singleton(); bool uses_global_buffer = false; @@ -1275,13 +1311,13 @@ MaterialStorage *MaterialStorage::get_singleton() { MaterialStorage::MaterialStorage() { singleton = this; - shader_data_request_func[RS::SHADER_SPATIAL] = nullptr; + shader_data_request_func[RS::SHADER_SPATIAL] = _create_scene_shader_func; shader_data_request_func[RS::SHADER_CANVAS_ITEM] = _create_canvas_shader_func; shader_data_request_func[RS::SHADER_PARTICLES] = nullptr; shader_data_request_func[RS::SHADER_SKY] = _create_sky_shader_func; shader_data_request_func[RS::SHADER_FOG] = nullptr; - material_data_request_func[RS::SHADER_SPATIAL] = nullptr; + material_data_request_func[RS::SHADER_SPATIAL] = _create_scene_material_func; material_data_request_func[RS::SHADER_CANVAS_ITEM] = _create_canvas_material_func; material_data_request_func[RS::SHADER_PARTICLES] = nullptr; material_data_request_func[RS::SHADER_SKY] = _create_sky_material_func; @@ -1365,16 +1401,12 @@ MaterialStorage::MaterialStorage() { actions.render_mode_defines["unshaded"] = "#define MODE_UNSHADED\n"; actions.render_mode_defines["light_only"] = "#define MODE_LIGHT_ONLY\n"; - actions.base_texture_binding_index = 0; - actions.base_uniform_string = ""; - actions.global_buffer_array_variable = ""; - shaders.compiler_canvas.initialize(actions); } { // Setup Scene compiler - /* + //shader compiler ShaderCompiler::DefaultIdentifierActions actions; @@ -1529,11 +1561,6 @@ MaterialStorage::MaterialStorage() { actions.render_mode_defines["sss_mode_skin"] = "#define SSS_MODE_SKIN\n"; actions.render_mode_defines["specular_schlick_ggx"] = "#define SPECULAR_SCHLICK_GGX\n"; - - actions.custom_samplers["SCREEN_TEXTURE"] = "material_samplers[3]"; // linear filter with mipmaps - actions.custom_samplers["DEPTH_TEXTURE"] = "material_samplers[3]"; - actions.custom_samplers["NORMAL_ROUGHNESS_TEXTURE"] = "material_samplers[1]"; // linear filter - actions.render_mode_defines["specular_toon"] = "#define SPECULAR_TOON\n"; actions.render_mode_defines["specular_disabled"] = "#define SPECULAR_DISABLED\n"; actions.render_mode_defines["shadows_disabled"] = "#define SHADOWS_DISABLED\n"; @@ -1541,19 +1568,10 @@ MaterialStorage::MaterialStorage() { actions.render_mode_defines["shadow_to_opacity"] = "#define USE_SHADOW_TO_OPACITY\n"; actions.render_mode_defines["unshaded"] = "#define MODE_UNSHADED\n"; - actions.sampler_array_name = "material_samplers"; - actions.base_texture_binding_index = 1; - actions.texture_layout_set = RenderForwardClustered::MATERIAL_UNIFORM_SET; - actions.base_uniform_string = "material."; - actions.base_varying_index = 10; - actions.default_filter = ShaderLanguage::FILTER_LINEAR_MIPMAP; actions.default_repeat = ShaderLanguage::REPEAT_ENABLE; - actions.global_buffer_array_variable = "global_variables.data"; - actions.instance_uniform_index_variable = "instances.data[instance_index].instance_uniforms_ofs"; - compiler.initialize(actions); - */ + shaders.compiler_scene.initialize(actions); } { @@ -1664,13 +1682,8 @@ ShaderCompiler::DefaultIdentifierActions actions; actions.usage_defines["QUARTER_RES_COLOR"] = "\n#define USES_QUARTER_RES_COLOR\n"; actions.render_mode_defines["disable_fog"] = "#define DISABLE_FOG\n"; - actions.base_texture_binding_index = 1; - actions.texture_layout_set = 1; - actions.base_varying_index = 10; - actions.default_filter = ShaderLanguage::FILTER_LINEAR_MIPMAP; actions.default_repeat = ShaderLanguage::REPEAT_ENABLE; - actions.global_buffer_array_variable = "global_variables"; shaders.compiler_sky.initialize(actions); } @@ -2914,42 +2927,6 @@ void CanvasMaterialData::update_parameters(const Map<StringName, Variant> &p_par return update_parameters_internal(p_parameters, p_uniform_dirty, p_textures_dirty, shader_data->uniforms, shader_data->ubo_offsets.ptr(), shader_data->texture_uniforms, shader_data->default_texture_params, shader_data->ubo_size); } -// Look up table to translate ShaderLanguage::DataType to GL_TEXTURE_* -static const GLenum target_from_type[ShaderLanguage::TYPE_MAX] = { - GL_TEXTURE_2D, // TYPE_VOID, - GL_TEXTURE_2D, // TYPE_BOOL, - GL_TEXTURE_2D, // TYPE_BVEC2, - GL_TEXTURE_2D, // TYPE_BVEC3, - GL_TEXTURE_2D, // TYPE_BVEC4, - GL_TEXTURE_2D, // TYPE_INT, - GL_TEXTURE_2D, // TYPE_IVEC2, - GL_TEXTURE_2D, // TYPE_IVEC3, - GL_TEXTURE_2D, // TYPE_IVEC4, - GL_TEXTURE_2D, // TYPE_UINT, - GL_TEXTURE_2D, // TYPE_UVEC2, - GL_TEXTURE_2D, // TYPE_UVEC3, - GL_TEXTURE_2D, // TYPE_UVEC4, - GL_TEXTURE_2D, // TYPE_FLOAT, - GL_TEXTURE_2D, // TYPE_VEC2, - GL_TEXTURE_2D, // TYPE_VEC3, - GL_TEXTURE_2D, // TYPE_VEC4, - GL_TEXTURE_2D, // TYPE_MAT2, - GL_TEXTURE_2D, // TYPE_MAT3, - GL_TEXTURE_2D, // TYPE_MAT4, - GL_TEXTURE_2D, // TYPE_SAMPLER2D, - GL_TEXTURE_2D, // TYPE_ISAMPLER2D, - GL_TEXTURE_2D, // TYPE_USAMPLER2D, - GL_TEXTURE_2D_ARRAY, // TYPE_SAMPLER2DARRAY, - GL_TEXTURE_2D_ARRAY, // TYPE_ISAMPLER2DARRAY, - GL_TEXTURE_2D_ARRAY, // TYPE_USAMPLER2DARRAY, - GL_TEXTURE_3D, // TYPE_SAMPLER3D, - GL_TEXTURE_3D, // TYPE_ISAMPLER3D, - GL_TEXTURE_3D, // TYPE_USAMPLER3D, - GL_TEXTURE_CUBE_MAP, // TYPE_SAMPLERCUBE, - GL_TEXTURE_CUBE_MAP, // TYPE_SAMPLERCUBEARRAY, - GL_TEXTURE_2D, // TYPE_STRUCT -}; - void CanvasMaterialData::bind_uniforms() { // Bind Material Uniforms glBindBufferBase(GL_UNIFORM_BUFFER, RasterizerCanvasGLES3::MATERIAL_UNIFORM_BUFFER_OBJECT, uniform_buffer); @@ -2958,7 +2935,7 @@ void CanvasMaterialData::bind_uniforms() { ShaderCompiler::GeneratedCode::Texture *texture_uniforms = shader_data->texture_uniforms.ptrw(); for (int ti = 0; ti < texture_cache.size(); ti++) { Texture *texture = TextureStorage::get_singleton()->get_texture(textures[ti]); - glActiveTexture(GL_TEXTURE1 + ti); + glActiveTexture(GL_TEXTURE1 + ti); // Start at GL_TEXTURE1 because texture slot 0 is used by the base texture glBindTexture(target_from_type[texture_uniforms[ti].type], texture->tex_id); // Set sampler state here as the same texture can be used in multiple places with different flags @@ -3203,4 +3180,297 @@ void SkyMaterialData::bind_uniforms() { } } +//////////////////////////////////////////////////////////////////////////////// +// Scene SHADER + +void SceneShaderData::set_code(const String &p_code) { + //compile + + code = p_code; + valid = false; + ubo_size = 0; + uniforms.clear(); + uses_screen_texture = false; + + if (code.is_empty()) { + return; //just invalid, but no error + } + + ShaderCompiler::GeneratedCode gen_code; + + int blend_modei = BLEND_MODE_MIX; + int depth_testi = DEPTH_TEST_ENABLED; + int alpha_antialiasing_modei = ALPHA_ANTIALIASING_OFF; + int cull_modei = CULL_BACK; + int depth_drawi = DEPTH_DRAW_OPAQUE; + + uses_point_size = false; + uses_alpha = false; + uses_alpha_clip = false; + uses_blend_alpha = false; + uses_depth_pre_pass = false; + uses_discard = false; + uses_roughness = false; + uses_normal = false; + wireframe = false; + + unshaded = false; + uses_vertex = false; + uses_position = false; + uses_sss = false; + uses_transmittance = false; + uses_screen_texture = false; + uses_depth_texture = false; + uses_normal_texture = false; + uses_time = false; + writes_modelview_or_projection = false; + uses_world_coordinates = false; + uses_particle_trails = false; + + ShaderCompiler::IdentifierActions actions; + actions.entry_point_stages["vertex"] = ShaderCompiler::STAGE_VERTEX; + actions.entry_point_stages["fragment"] = ShaderCompiler::STAGE_FRAGMENT; + actions.entry_point_stages["light"] = ShaderCompiler::STAGE_FRAGMENT; + + actions.render_mode_values["blend_add"] = Pair<int *, int>(&blend_modei, BLEND_MODE_ADD); + actions.render_mode_values["blend_mix"] = Pair<int *, int>(&blend_modei, BLEND_MODE_MIX); + actions.render_mode_values["blend_sub"] = Pair<int *, int>(&blend_modei, BLEND_MODE_SUB); + actions.render_mode_values["blend_mul"] = Pair<int *, int>(&blend_modei, BLEND_MODE_MUL); + + actions.render_mode_values["alpha_to_coverage"] = Pair<int *, int>(&alpha_antialiasing_modei, ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE); + actions.render_mode_values["alpha_to_coverage_and_one"] = Pair<int *, int>(&alpha_antialiasing_modei, ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE_AND_TO_ONE); + + actions.render_mode_values["depth_draw_never"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_DISABLED); + actions.render_mode_values["depth_draw_opaque"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_OPAQUE); + actions.render_mode_values["depth_draw_always"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_ALWAYS); + + actions.render_mode_values["depth_test_disabled"] = Pair<int *, int>(&depth_testi, DEPTH_TEST_DISABLED); + + actions.render_mode_values["cull_disabled"] = Pair<int *, int>(&cull_modei, CULL_DISABLED); + actions.render_mode_values["cull_front"] = Pair<int *, int>(&cull_modei, CULL_FRONT); + actions.render_mode_values["cull_back"] = Pair<int *, int>(&cull_modei, CULL_BACK); + + actions.render_mode_flags["unshaded"] = &unshaded; + actions.render_mode_flags["wireframe"] = &wireframe; + actions.render_mode_flags["particle_trails"] = &uses_particle_trails; + + actions.usage_flag_pointers["ALPHA"] = &uses_alpha; + actions.usage_flag_pointers["ALPHA_SCISSOR_THRESHOLD"] = &uses_alpha_clip; + actions.render_mode_flags["depth_prepass_alpha"] = &uses_depth_pre_pass; + + actions.usage_flag_pointers["SSS_STRENGTH"] = &uses_sss; + actions.usage_flag_pointers["SSS_TRANSMITTANCE_DEPTH"] = &uses_transmittance; + + actions.usage_flag_pointers["SCREEN_TEXTURE"] = &uses_screen_texture; + actions.usage_flag_pointers["DEPTH_TEXTURE"] = &uses_depth_texture; + actions.usage_flag_pointers["NORMAL_TEXTURE"] = &uses_normal_texture; + actions.usage_flag_pointers["DISCARD"] = &uses_discard; + actions.usage_flag_pointers["TIME"] = &uses_time; + actions.usage_flag_pointers["ROUGHNESS"] = &uses_roughness; + actions.usage_flag_pointers["NORMAL"] = &uses_normal; + actions.usage_flag_pointers["NORMAL_MAP"] = &uses_normal; + + actions.usage_flag_pointers["POINT_SIZE"] = &uses_point_size; + actions.usage_flag_pointers["POINT_COORD"] = &uses_point_size; + + actions.write_flag_pointers["MODELVIEW_MATRIX"] = &writes_modelview_or_projection; + actions.write_flag_pointers["PROJECTION_MATRIX"] = &writes_modelview_or_projection; + actions.write_flag_pointers["VERTEX"] = &uses_vertex; + actions.write_flag_pointers["POSITION"] = &uses_position; + + actions.uniforms = &uniforms; + + Error err = MaterialStorage::get_singleton()->shaders.compiler_scene.compile(RS::SHADER_SPATIAL, code, &actions, path, gen_code); + ERR_FAIL_COND_MSG(err != OK, "Shader compilation failed."); + + if (version.is_null()) { + version = MaterialStorage::get_singleton()->shaders.scene_shader.version_create(); + } + + depth_draw = DepthDraw(depth_drawi); + depth_test = DepthTest(depth_testi); + cull_mode = Cull(cull_modei); + blend_mode = BlendMode(blend_modei); + alpha_antialiasing_mode = AlphaAntiAliasing(alpha_antialiasing_modei); + +#if 0 + print_line("**compiling shader:"); + print_line("**defines:\n"); + for (int i = 0; i < gen_code.defines.size(); i++) { + print_line(gen_code.defines[i]); + } + + Map<String, String>::Element *el = gen_code.code.front(); + while (el) { + print_line("\n**code " + el->key() + ":\n" + el->value()); + + el = el->next(); + } + + print_line("\n**uniforms:\n" + gen_code.uniforms); + print_line("\n**vertex_globals:\n" + gen_code.stage_globals[ShaderCompiler::STAGE_VERTEX]); + print_line("\n**fragment_globals:\n" + gen_code.stage_globals[ShaderCompiler::STAGE_FRAGMENT]); +#endif + + Vector<StringName> texture_uniform_names; + for (int i = 0; i < gen_code.texture_uniforms.size(); i++) { + texture_uniform_names.push_back(gen_code.texture_uniforms[i].name); + } + + MaterialStorage::get_singleton()->shaders.scene_shader.version_set_code(version, gen_code.code, gen_code.uniforms, gen_code.stage_globals[ShaderCompiler::STAGE_VERTEX], gen_code.stage_globals[ShaderCompiler::STAGE_FRAGMENT], gen_code.defines, texture_uniform_names); + ERR_FAIL_COND(!MaterialStorage::get_singleton()->shaders.scene_shader.version_is_valid(version)); + + ubo_size = gen_code.uniform_total_size; + ubo_offsets = gen_code.uniform_offsets; + texture_uniforms = gen_code.texture_uniforms; + + // if any form of Alpha Antialiasing is enabled, set the blend mode to alpha to coverage + if (alpha_antialiasing_mode != ALPHA_ANTIALIASING_OFF) { + blend_mode = BLEND_MODE_ALPHA_TO_COVERAGE; + } + + valid = true; +} + +void SceneShaderData::set_default_texture_param(const StringName &p_name, RID p_texture, int p_index) { + if (!p_texture.is_valid()) { + if (default_texture_params.has(p_name) && default_texture_params[p_name].has(p_index)) { + default_texture_params[p_name].erase(p_index); + + if (default_texture_params[p_name].is_empty()) { + default_texture_params.erase(p_name); + } + } + } else { + if (!default_texture_params.has(p_name)) { + default_texture_params[p_name] = Map<int, RID>(); + } + default_texture_params[p_name][p_index] = p_texture; + } +} + +void SceneShaderData::get_param_list(List<PropertyInfo> *p_param_list) const { + Map<int, StringName> order; + + for (const KeyValue<StringName, ShaderLanguage::ShaderNode::Uniform> &E : uniforms) { + if (E.value.scope != ShaderLanguage::ShaderNode::Uniform::SCOPE_LOCAL) { + continue; + } + + if (E.value.texture_order >= 0) { + order[E.value.texture_order + 100000] = E.key; + } else { + order[E.value.order] = E.key; + } + } + + for (const KeyValue<int, StringName> &E : order) { + PropertyInfo pi = ShaderLanguage::uniform_to_property_info(uniforms[E.value]); + pi.name = E.value; + p_param_list->push_back(pi); + } +} + +void SceneShaderData::get_instance_param_list(List<RendererMaterialStorage::InstanceShaderParam> *p_param_list) const { + for (const KeyValue<StringName, ShaderLanguage::ShaderNode::Uniform> &E : uniforms) { + if (E.value.scope != ShaderLanguage::ShaderNode::Uniform::SCOPE_INSTANCE) { + continue; + } + + RendererMaterialStorage::InstanceShaderParam p; + p.info = ShaderLanguage::uniform_to_property_info(E.value); + p.info.name = E.key; //supply name + p.index = E.value.instance_index; + p.default_value = ShaderLanguage::constant_value_to_variant(E.value.default_value, E.value.type, E.value.array_size, E.value.hint); + p_param_list->push_back(p); + } +} + +bool SceneShaderData::is_param_texture(const StringName &p_param) const { + if (!uniforms.has(p_param)) { + return false; + } + + return uniforms[p_param].texture_order >= 0; +} + +bool SceneShaderData::is_animated() const { + return false; +} + +bool SceneShaderData::casts_shadows() const { + return false; +} + +Variant SceneShaderData::get_default_parameter(const StringName &p_parameter) const { + if (uniforms.has(p_parameter)) { + ShaderLanguage::ShaderNode::Uniform uniform = uniforms[p_parameter]; + Vector<ShaderLanguage::ConstantNode::Value> default_value = uniform.default_value; + return ShaderLanguage::constant_value_to_variant(default_value, uniform.type, uniform.array_size, uniform.hint); + } + return Variant(); +} + +RS::ShaderNativeSourceCode SceneShaderData::get_native_source_code() const { + return MaterialStorage::get_singleton()->shaders.scene_shader.version_get_native_source_code(version); +} + +SceneShaderData::SceneShaderData() { + valid = false; + uses_screen_texture = false; +} + +SceneShaderData::~SceneShaderData() { + if (version.is_valid()) { + MaterialStorage::get_singleton()->shaders.scene_shader.version_free(version); + } +} + +GLES3::ShaderData *GLES3::_create_scene_shader_func() { + SceneShaderData *shader_data = memnew(SceneShaderData); + return shader_data; +} + +void SceneMaterialData::set_render_priority(int p_priority) { + priority = p_priority - RS::MATERIAL_RENDER_PRIORITY_MIN; //8 bits +} + +void SceneMaterialData::set_next_pass(RID p_pass) { + next_pass = p_pass; +} + +void SceneMaterialData::update_parameters(const Map<StringName, Variant> &p_parameters, bool p_uniform_dirty, bool p_textures_dirty) { + return update_parameters_internal(p_parameters, p_uniform_dirty, p_textures_dirty, shader_data->uniforms, shader_data->ubo_offsets.ptr(), shader_data->texture_uniforms, shader_data->default_texture_params, shader_data->ubo_size); +} + +SceneMaterialData::~SceneMaterialData() { +} + +GLES3::MaterialData *GLES3::_create_scene_material_func(ShaderData *p_shader) { + SceneMaterialData *material_data = memnew(SceneMaterialData); + material_data->shader_data = static_cast<SceneShaderData *>(p_shader); + //update will happen later anyway so do nothing. + return material_data; +} + +void SceneMaterialData::bind_uniforms() { + // Bind Material Uniforms + glBindBufferBase(GL_UNIFORM_BUFFER, 3, uniform_buffer); + + RID *textures = texture_cache.ptrw(); + ShaderCompiler::GeneratedCode::Texture *texture_uniforms = shader_data->texture_uniforms.ptrw(); + for (int ti = 0; ti < texture_cache.size(); ti++) { + Texture *texture = TextureStorage::get_singleton()->get_texture(textures[ti]); + glActiveTexture(GL_TEXTURE0 + ti); + glBindTexture(target_from_type[texture_uniforms[ti].type], texture->tex_id); + + // Set sampler state here as the same texture can be used in multiple places with different flags + // Need to convert sampler state from ShaderLanguage::Texture* to RS::CanvasItemTexture* + RS::CanvasItemTextureFilter filter = RS::CanvasItemTextureFilter((int(texture_uniforms[ti].filter) + 1) % RS::CANVAS_ITEM_TEXTURE_FILTER_MAX); + RS::CanvasItemTextureRepeat repeat = RS::CanvasItemTextureRepeat((int(texture_uniforms[ti].repeat) + 1) % RS::CANVAS_ITEM_TEXTURE_REPEAT_MIRROR); + texture->gl_set_filter(filter); + texture->gl_set_repeat(repeat); + } +} + #endif // !GLES3_ENABLED diff --git a/drivers/gles3/storage/material_storage.h b/drivers/gles3/storage/material_storage.h index 1a7452f66a..f9901f0085 100644 --- a/drivers/gles3/storage/material_storage.h +++ b/drivers/gles3/storage/material_storage.h @@ -45,15 +45,17 @@ #include "drivers/gles3/shaders/copy.glsl.gen.h" #include "../shaders/canvas.glsl.gen.h" +#include "../shaders/scene.glsl.gen.h" #include "../shaders/sky.glsl.gen.h" namespace GLES3 { -/* SHADER Structs */ +/* Shader Structs */ struct Shaders { CanvasShaderGLES3 canvas_shader; SkyShaderGLES3 sky_shader; + SceneShaderGLES3 scene_shader; ShaderCompiler compiler_canvas; ShaderCompiler compiler_scene; @@ -141,7 +143,7 @@ struct Material { update_element(this) {} }; -// CanvasItem Materials +/* CanvasItem Materials */ struct CanvasShaderData : public ShaderData { enum BlendMode { //used internally @@ -249,6 +251,126 @@ struct SkyMaterialData : public MaterialData { MaterialData *_create_sky_material_func(ShaderData *p_shader); +/* Scene Materials */ + +struct SceneShaderData : public ShaderData { + enum BlendMode { //used internally + BLEND_MODE_MIX, + BLEND_MODE_ADD, + BLEND_MODE_SUB, + BLEND_MODE_MUL, + BLEND_MODE_ALPHA_TO_COVERAGE + }; + + enum DepthDraw { + DEPTH_DRAW_DISABLED, + DEPTH_DRAW_OPAQUE, + DEPTH_DRAW_ALWAYS + }; + + enum DepthTest { + DEPTH_TEST_DISABLED, + DEPTH_TEST_ENABLED + }; + + enum Cull { + CULL_DISABLED, + CULL_FRONT, + CULL_BACK + }; + + enum CullVariant { + CULL_VARIANT_NORMAL, + CULL_VARIANT_REVERSED, + CULL_VARIANT_DOUBLE_SIDED, + CULL_VARIANT_MAX + + }; + + enum AlphaAntiAliasing { + ALPHA_ANTIALIASING_OFF, + ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE, + ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE_AND_TO_ONE + }; + + bool valid; + RID version; + + String path; + + Map<StringName, ShaderLanguage::ShaderNode::Uniform> uniforms; + Vector<ShaderCompiler::GeneratedCode::Texture> texture_uniforms; + + Vector<uint32_t> ubo_offsets; + uint32_t ubo_size; + + String code; + Map<StringName, Map<int, RID>> default_texture_params; + + BlendMode blend_mode; + AlphaAntiAliasing alpha_antialiasing_mode; + DepthDraw depth_draw; + DepthTest depth_test; + Cull cull_mode; + + bool uses_point_size; + bool uses_alpha; + bool uses_blend_alpha; + bool uses_alpha_clip; + bool uses_depth_pre_pass; + bool uses_discard; + bool uses_roughness; + bool uses_normal; + bool uses_particle_trails; + bool wireframe; + + bool unshaded; + bool uses_vertex; + bool uses_position; + bool uses_sss; + bool uses_transmittance; + bool uses_screen_texture; + bool uses_depth_texture; + bool uses_normal_texture; + bool uses_time; + bool writes_modelview_or_projection; + bool uses_world_coordinates; + + uint64_t last_pass = 0; + uint32_t index = 0; + + virtual void set_code(const String &p_Code); + virtual void set_default_texture_param(const StringName &p_name, RID p_texture, int p_index); + virtual void get_param_list(List<PropertyInfo> *p_param_list) const; + virtual void get_instance_param_list(List<RendererMaterialStorage::InstanceShaderParam> *p_param_list) const; + + virtual bool is_param_texture(const StringName &p_param) const; + virtual bool is_animated() const; + virtual bool casts_shadows() const; + virtual Variant get_default_parameter(const StringName &p_parameter) const; + virtual RS::ShaderNativeSourceCode get_native_source_code() const; + + SceneShaderData(); + virtual ~SceneShaderData(); +}; + +ShaderData *_create_scene_shader_func(); + +struct SceneMaterialData : public MaterialData { + SceneShaderData *shader_data = nullptr; + uint64_t last_pass = 0; + uint32_t index = 0; + RID next_pass; + uint8_t priority = 0; + virtual void set_render_priority(int p_priority); + virtual void set_next_pass(RID p_pass); + virtual void update_parameters(const Map<StringName, Variant> &p_parameters, bool p_uniform_dirty, bool p_textures_dirty); + virtual void bind_uniforms(); + virtual ~SceneMaterialData(); +}; + +MaterialData *_create_scene_material_func(ShaderData *p_shader); + /* Global variable structs */ struct GlobalVariables { enum { |