diff options
Diffstat (limited to 'drivers/gles2/shaders/scene.glsl')
| -rw-r--r-- | drivers/gles2/shaders/scene.glsl | 458 |
1 files changed, 409 insertions, 49 deletions
diff --git a/drivers/gles2/shaders/scene.glsl b/drivers/gles2/shaders/scene.glsl index da4c3a84f1..cc3bae060f 100644 --- a/drivers/gles2/shaders/scene.glsl +++ b/drivers/gles2/shaders/scene.glsl @@ -27,15 +27,15 @@ attribute vec3 normal_attrib; // attrib:1 attribute vec4 tangent_attrib; // attrib:2 #endif -#ifdef ENABLE_COLOR_INTERP +#if defined(ENABLE_COLOR_INTERP) attribute vec4 color_attrib; // attrib:3 #endif -#ifdef ENABLE_UV_INTERP +#if defined(ENABLE_UV_INTERP) attribute vec2 uv_attrib; // attrib:4 #endif -#ifdef ENABLE_UV2_INTERP +#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) attribute vec2 uv2_attrib; // attrib:5 #endif @@ -43,9 +43,9 @@ attribute vec2 uv2_attrib; // attrib:5 #ifdef USE_SKELETON_SOFTWARE -attribute highp vec4 bone_transform_row_0; // attrib:8 -attribute highp vec4 bone_transform_row_1; // attrib:9 -attribute highp vec4 bone_transform_row_2; // attrib:10 +attribute highp vec4 bone_transform_row_0; // attrib:13 +attribute highp vec4 bone_transform_row_1; // attrib:14 +attribute highp vec4 bone_transform_row_2; // attrib:15 #else @@ -102,15 +102,15 @@ varying vec3 tangent_interp; varying vec3 binormal_interp; #endif -#ifdef ENABLE_COLOR_INTERP +#if defined(ENABLE_COLOR_INTERP) varying vec4 color_interp; #endif -#ifdef ENABLE_UV_INTERP +#if defined(ENABLE_UV_INTERP) varying vec2 uv_interp; #endif -#ifdef ENABLE_UV2_INTERP +#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) varying vec2 uv2_interp; #endif @@ -130,11 +130,6 @@ uniform highp float shadow_dual_paraboloid_render_side; #if defined(USE_SHADOW) && defined(USE_LIGHTING) -#ifdef LIGHT_MODE_DIRECTIONAL -uniform highp sampler2D light_directional_shadow; // texunit:-3 -uniform highp vec4 light_split_offsets; -#endif - uniform highp mat4 light_shadow_matrix; varying highp vec4 shadow_coord; @@ -170,7 +165,7 @@ uniform vec3 light_direction; uniform vec3 light_position; uniform float light_range; -uniform vec4 light_attenuation; +uniform float light_attenuation; // spot uniform float light_spot_attenuation; @@ -262,6 +257,34 @@ void light_compute( #endif +#ifdef USE_VERTEX_LIGHTING + +#ifdef USE_REFLECTION_PROBE1 + +uniform mat4 refprobe1_local_matrix; +varying mediump vec4 refprobe1_reflection_normal_blend; +uniform vec3 refprobe1_box_extents; + +#ifndef USE_LIGHTMAP +varying mediump vec3 refprobe1_ambient_normal; +#endif + +#endif //reflection probe1 + +#ifdef USE_REFLECTION_PROBE2 + +uniform mat4 refprobe2_local_matrix; +varying mediump vec4 refprobe2_reflection_normal_blend; +uniform vec3 refprobe2_box_extents; + +#ifndef USE_LIGHTMAP +varying mediump vec3 refprobe2_ambient_normal; +#endif + +#endif //reflection probe2 + +#endif //vertex lighting for refprobes + void main() { highp vec4 vertex = vertex_attrib; @@ -277,6 +300,7 @@ void main() { vec4(0.0, 0.0, 0.0, 1.0)); world_matrix = world_matrix * transpose(m); } + #endif vec3 normal = normal_attrib * normal_mult; @@ -288,18 +312,18 @@ void main() { vec3 binormal = normalize(cross(normal, tangent) * binormalf); #endif -#ifdef ENABLE_COLOR_INTERP +#if defined(ENABLE_COLOR_INTERP) color_interp = color_attrib; #ifdef USE_INSTANCING color_interp *= instance_color; #endif #endif -#ifdef ENABLE_UV_INTERP +#if defined(ENABLE_UV_INTERP) uv_interp = uv_attrib; #endif -#ifdef ENABLE_UV2_INTERP +#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) uv2_interp = uv2_attrib; #endif @@ -438,10 +462,15 @@ VERTEX_SHADER_CODE float normalized_distance = light_length / light_range; - float omni_attenuation = pow(1.0 - normalized_distance, light_attenuation.w); + if (normalized_distance < 1.0) { - vec3 attenuation = vec3(omni_attenuation); - light_att = vec3(omni_attenuation); + float omni_attenuation = pow(1.0 - normalized_distance, light_attenuation); + + vec3 attenuation = vec3(omni_attenuation); + light_att = vec3(omni_attenuation); + } else { + light_att = vec3(0.0); + } L = normalize(light_vec); @@ -453,17 +482,30 @@ VERTEX_SHADER_CODE float light_length = length(light_rel_vec); float normalized_distance = light_length / light_range; - float spot_attenuation = pow(1.0 - normalized_distance, light_attenuation.w); - vec3 spot_dir = light_direction; + if (normalized_distance < 1.0) { - float spot_cutoff = light_spot_angle; + float spot_attenuation = pow(1.0 - normalized_distance, light_attenuation); + vec3 spot_dir = light_direction; - float scos = max(dot(-normalize(light_rel_vec), spot_dir), spot_cutoff); - float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_cutoff)); + float spot_cutoff = light_spot_angle; - spot_attenuation *= 1.0 - pow(spot_rim, light_spot_attenuation); + 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); + } - light_att = vec3(spot_attenuation); L = normalize(light_rel_vec); #endif @@ -492,12 +534,55 @@ VERTEX_SHADER_CODE #if defined(LIGHT_USE_PSSM4) shadow_coord3 = light_shadow_matrix3 * vi4; - shadow_coord3 = light_shadow_matrix3 * vi4; + shadow_coord4 = light_shadow_matrix4 * vi4; #endif #endif //use shadow and use lighting +#ifdef USE_VERTEX_LIGHTING + +#ifdef USE_REFLECTION_PROBE1 + { + vec3 ref_normal = normalize(reflect(vertex_interp, normal_interp)); + vec3 local_pos = (refprobe1_local_matrix * vec4(vertex_interp, 1.0)).xyz; + vec3 inner_pos = abs(local_pos / refprobe1_box_extents); + float blend = max(inner_pos.x, max(inner_pos.y, inner_pos.z)); + + { + vec3 local_ref_vec = (refprobe1_local_matrix * vec4(ref_normal, 0.0)).xyz; + refprobe1_reflection_normal_blend.xyz = local_ref_vec; + refprobe1_reflection_normal_blend.a = blend; + } +#ifndef USE_LIGHTMAP + + refprobe1_ambient_normal = (refprobe1_local_matrix * vec4(normal_interp, 0.0)).xyz; +#endif + } + +#endif //USE_REFLECTION_PROBE1 + +#ifdef USE_REFLECTION_PROBE2 + { + vec3 ref_normal = normalize(reflect(vertex_interp, normal_interp)); + vec3 local_pos = (refprobe2_local_matrix * vec4(vertex_interp, 1.0)).xyz; + vec3 inner_pos = abs(local_pos / refprobe2_box_extents); + float blend = max(inner_pos.x, max(inner_pos.y, inner_pos.z)); + + { + vec3 local_ref_vec = (refprobe2_local_matrix * vec4(ref_normal, 0.0)).xyz; + refprobe2_reflection_normal_blend.xyz = local_ref_vec; + refprobe2_reflection_normal_blend.a = blend; + } +#ifndef USE_LIGHTMAP + + refprobe2_ambient_normal = (refprobe2_local_matrix * vec4(normal_interp, 0.0)).xyz; +#endif + } + +#endif //USE_REFLECTION_PROBE2 + +#endif //use vertex lighting gl_Position = projection_matrix * vec4(vertex_interp, 1.0); } @@ -537,7 +622,7 @@ uniform mat4 world_transform; uniform highp float time; -#ifdef SCREEN_UV_USED +#if defined(SCREEN_UV_USED) uniform vec2 screen_pixel_size; #endif @@ -548,10 +633,168 @@ uniform vec2 screen_pixel_size; uniform highp sampler2D screen_texture; //texunit:-4 #endif -#ifdef USE_RADIANCE_MAP +#ifdef USE_REFLECTION_PROBE1 + +#ifdef USE_VERTEX_LIGHTING + +varying mediump vec4 refprobe1_reflection_normal_blend; +#ifndef USE_LIGHTMAP +varying mediump vec3 refprobe1_ambient_normal; +#endif + +#else + +uniform bool refprobe1_use_box_project; +uniform vec3 refprobe1_box_extents; +uniform vec3 refprobe1_box_offset; +uniform mat4 refprobe1_local_matrix; + +#endif //use vertex lighting + +uniform bool refprobe1_exterior; + +uniform highp samplerCube reflection_probe1; //texunit:-5 + +uniform float refprobe1_intensity; +uniform vec4 refprobe1_ambient; + +#endif //USE_REFLECTION_PROBE1 + +#ifdef USE_REFLECTION_PROBE2 + +#ifdef USE_VERTEX_LIGHTING + +varying mediump vec4 refprobe2_reflection_normal_blend; +#ifndef USE_LIGHTMAP +varying mediump vec3 refprobe2_ambient_normal; +#endif + +#else + +uniform bool refprobe2_use_box_project; +uniform vec3 refprobe2_box_extents; +uniform vec3 refprobe2_box_offset; +uniform mat4 refprobe2_local_matrix; + +#endif //use vertex lighting + +uniform bool refprobe2_exterior; + +uniform highp samplerCube reflection_probe2; //texunit:-6 + +uniform float refprobe2_intensity; +uniform vec4 refprobe2_ambient; + +#endif //USE_REFLECTION_PROBE2 #define RADIANCE_MAX_LOD 6.0 +#if defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2) + +void reflection_process(samplerCube reflection_map, +#ifdef USE_VERTEX_LIGHTING + vec3 ref_normal, +#ifndef USE_LIGHTMAP + vec3 amb_normal, +#endif + float ref_blend, + +#else //no vertex lighting + vec3 normal, vec3 vertex, + mat4 local_matrix, + bool use_box_project, vec3 box_extents, vec3 box_offset, +#endif //vertex lighting + bool exterior, float intensity, vec4 ref_ambient, float roughness, vec3 ambient, vec3 skybox, inout highp vec4 reflection_accum, inout highp vec4 ambient_accum) { + + vec4 reflection; + +#ifdef USE_VERTEX_LIGHTING + + reflection.rgb = textureCubeLod(reflection_map, ref_normal, roughness * RADIANCE_MAX_LOD).rgb; + + float blend = ref_blend; //crappier blend formula for vertex + blend *= blend; + blend = max(0.0, 1.0 - blend); + +#else //fragment lighting + + vec3 local_pos = (local_matrix * vec4(vertex, 1.0)).xyz; + + if (any(greaterThan(abs(local_pos), box_extents))) { //out of the reflection box + return; + } + + vec3 inner_pos = abs(local_pos / box_extents); + float blend = max(inner_pos.x, max(inner_pos.y, inner_pos.z)); + blend = mix(length(inner_pos), blend, blend); + blend *= blend; + blend = max(0.0, 1.0 - blend); + + //reflect and make local + vec3 ref_normal = normalize(reflect(vertex, normal)); + ref_normal = (local_matrix * vec4(ref_normal, 0.0)).xyz; + + if (use_box_project) { //box project + + vec3 nrdir = normalize(ref_normal); + vec3 rbmax = (box_extents - local_pos) / nrdir; + vec3 rbmin = (-box_extents - local_pos) / nrdir; + + vec3 rbminmax = mix(rbmin, rbmax, vec3(greaterThan(nrdir, vec3(0.0, 0.0, 0.0)))); + + float fa = min(min(rbminmax.x, rbminmax.y), rbminmax.z); + vec3 posonbox = local_pos + nrdir * fa; + ref_normal = posonbox - box_offset.xyz; + } + + reflection.rgb = textureCubeLod(reflection_map, ref_normal, roughness * RADIANCE_MAX_LOD).rgb; +#endif + + if (exterior) { + reflection.rgb = mix(skybox, reflection.rgb, blend); + } + reflection.rgb *= intensity; + reflection.a = blend; + reflection.rgb *= blend; + + reflection_accum += reflection; + +#ifndef USE_LIGHTMAP + + vec4 ambient_out; +#ifndef USE_VERTEX_LIGHTING + + vec3 amb_normal = (local_matrix * vec4(normal, 0.0)).xyz; +#endif + + ambient_out.rgb = textureCubeLod(reflection_map, amb_normal, RADIANCE_MAX_LOD).rgb; + ambient_out.rgb = mix(ref_ambient.rgb, ambient_out.rgb, ref_ambient.a); + if (exterior) { + ambient_out.rgb = mix(ambient, ambient_out.rgb, blend); + } + + ambient_out.a = blend; + ambient_out.rgb *= blend; + ambient_accum += ambient_out; + +#endif +} + +#endif //use refprobe 1 or 2 + +#ifdef USE_LIGHTMAP +uniform mediump sampler2D lightmap; //texunit:-4 +uniform mediump float lightmap_energy; +#endif + +#ifdef USE_LIGHTMAP_CAPTURE +uniform mediump vec4[12] lightmap_captures; +uniform bool lightmap_capture_sky; + +#endif + +#ifdef USE_RADIANCE_MAP + uniform samplerCube radiance_map; // texunit:-2 uniform mat4 radiance_inverse_xform; @@ -583,7 +826,7 @@ uniform vec3 light_direction; // omni uniform vec3 light_position; -uniform vec4 light_attenuation; +uniform float light_attenuation; // spot uniform float light_spot_attenuation; @@ -640,15 +883,15 @@ varying vec3 tangent_interp; varying vec3 binormal_interp; #endif -#ifdef ENABLE_COLOR_INTERP +#if defined(ENABLE_COLOR_INTERP) varying vec4 color_interp; #endif -#ifdef ENABLE_UV_INTERP +#if defined(ENABLE_UV_INTERP) varying vec2 uv_interp; #endif -#ifdef ENABLE_UV2_INTERP +#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP) varying vec2 uv2_interp; #endif @@ -1034,6 +1277,7 @@ void main() { float clearcoat_gloss = 0.0; float anisotropy = 0.0; vec2 anisotropy_flow = vec2(1.0, 0.0); + float sss_strength = 0.0; //unused float alpha = 1.0; float side = 1.0; @@ -1057,11 +1301,11 @@ void main() { #endif float normaldepth = 1.0; -#ifdef ALPHA_SCISSOR_USED +#if defined(ALPHA_SCISSOR_USED) float alpha_scissor = 0.5; #endif -#ifdef SCREEN_UV_USED +#if defined(SCREEN_UV_USED) vec2 screen_uv = gl_FragCoord.xy * screen_pixel_size; #endif @@ -1091,7 +1335,7 @@ FRAGMENT_SHADER_CODE vec3 eye_position = -normalize(vertex_interp); -#ifdef ALPHA_SCISSOR_USED +#if defined(ALPHA_SCISSOR_USED) if (alpha < alpha_scissor) { discard; } @@ -1123,6 +1367,99 @@ FRAGMENT_SHADER_CODE ambient_light *= ambient_energy; +#if defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2) + + vec4 ambient_accum = vec4(0.0); + vec4 reflection_accum = vec4(0.0); + +#ifdef USE_REFLECTION_PROBE1 + + reflection_process(reflection_probe1, +#ifdef USE_VERTEX_LIGHTING + refprobe1_reflection_normal_blend.rgb, +#ifndef USE_LIGHTMAP + refprobe1_ambient_normal, +#endif + refprobe1_reflection_normal_blend.a, +#else + normal_interp, vertex_interp, refprobe1_local_matrix, + refprobe1_use_box_project, refprobe1_box_extents, refprobe1_box_offset, +#endif + refprobe1_exterior, refprobe1_intensity, refprobe1_ambient, roughness, + ambient_light, specular_light, reflection_accum, ambient_accum); + +#endif // USE_REFLECTION_PROBE1 + +#ifdef USE_REFLECTION_PROBE2 + + reflection_process(reflection_probe2, +#ifdef USE_VERTEX_LIGHTING + refprobe2_reflection_normal_blend.rgb, +#ifndef USE_LIGHTMAP + refprobe2_ambient_normal, +#endif + refprobe2_reflection_normal_blend.a, +#else + normal_interp, vertex_interp, refprobe2_local_matrix, + refprobe2_use_box_project, refprobe2_box_extents, refprobe2_box_offset, +#endif + refprobe2_exterior, refprobe2_intensity, refprobe2_ambient, roughness, + ambient_light, specular_light, reflection_accum, ambient_accum); + +#endif // USE_REFLECTION_PROBE2 + + if (reflection_accum.a > 0.0) { + specular_light = reflection_accum.rgb / reflection_accum.a; + } + +#ifndef USE_LIGHTMAP + if (ambient_accum.a > 0.0) { + ambient_light = ambient_accum.rgb / ambient_accum.a; + } +#endif + +#endif // defined(USE_REFLECTION_PROBE1) || defined(USE_REFLECTION_PROBE2) + +#ifdef USE_LIGHTMAP + //ambient light will come entirely from lightmap is lightmap is used + ambient_light = texture2D(lightmap, uv2_interp).rgb * lightmap_energy; +#endif + +#ifdef USE_LIGHTMAP_CAPTURE + { + vec3 cone_dirs[12] = vec3[]( + vec3(0, 0, 1), + vec3(0.866025, 0, 0.5), + vec3(0.267617, 0.823639, 0.5), + vec3(-0.700629, 0.509037, 0.5), + vec3(-0.700629, -0.509037, 0.5), + vec3(0.267617, -0.823639, 0.5), + vec3(0, 0, -1), + vec3(0.866025, 0, -0.5), + vec3(0.267617, 0.823639, -0.5), + vec3(-0.700629, 0.509037, -0.5), + vec3(-0.700629, -0.509037, -0.5), + vec3(0.267617, -0.823639, -0.5)); + + vec3 local_normal = normalize(camera_matrix * vec4(normal, 0.0)).xyz; + vec4 captured = vec4(0.0); + float sum = 0.0; + for (int i = 0; i < 12; i++) { + float amount = max(0.0, dot(local_normal, cone_dirs[i])); //not correct, but creates a nice wrap around effect + captured += lightmap_captures[i] * amount; + sum += amount; + } + + captured /= sum; + + if (lightmap_capture_sky) { + ambient_light = mix(ambient_light, captured.rgb, captured.a); + } else { + ambient_light = captured.rgb; + } + } +#endif + #endif //BASE PASS // @@ -1142,10 +1479,14 @@ FRAGMENT_SHADER_CODE float light_length = length(light_vec); float normalized_distance = light_length / light_range; + if (normalized_distance < 1.0) { - float omni_attenuation = pow(1.0 - normalized_distance, light_attenuation.w); + float omni_attenuation = pow(1.0 - normalized_distance, light_attenuation); - light_att = vec3(omni_attenuation); + light_att = vec3(omni_attenuation); + } else { + light_att = vec3(0.0); + } L = normalize(light_vec); #endif @@ -1311,17 +1652,25 @@ FRAGMENT_SHADER_CODE float light_length = length(light_rel_vec); float normalized_distance = light_length / light_range; - float spot_attenuation = pow(1.0 - normalized_distance, light_attenuation.w); - vec3 spot_dir = light_direction; + if (normalized_distance < 1.0) { + float spot_attenuation = pow(1.0 - normalized_distance, light_attenuation); + vec3 spot_dir = light_direction; - float spot_cutoff = light_spot_angle; + float spot_cutoff = light_spot_angle; + float angle = dot(-normalize(light_rel_vec), spot_dir); - float scos = max(dot(-normalize(light_rel_vec), spot_dir), spot_cutoff); - float spot_rim = max(0.0001, (1.0 - scos) / (1.0 - spot_cutoff)); + 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); - spot_attenuation *= 1.0 - pow(spot_rim, light_spot_attenuation); - - light_att = vec3(spot_attenuation); + light_att = vec3(spot_attenuation); + } else { + light_att = vec3(0.0); + } + } else { + light_att = vec3(0.0); + } L = normalize(light_rel_vec); @@ -1394,8 +1743,13 @@ FRAGMENT_SHADER_CODE // environment BRDF approximation - // TODO shadeless { + +#if defined(DIFFUSE_TOON) + //simplify for toon, as + specular_light *= specular * metallic * albedo * 2.0; +#else + //TODO: this curve is not really designed for gammaspace, should be adjusted const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022); const vec4 c1 = vec4(1.0, 0.0425, 1.04, -0.04); vec4 r = roughness * c0 + c1; @@ -1405,9 +1759,15 @@ FRAGMENT_SHADER_CODE vec3 specular_color = metallic_to_specular_color(metallic, specular, albedo); specular_light *= AB.x * specular_color + AB.y; +#endif } gl_FragColor = vec4(ambient_light + diffuse_light + specular_light, alpha); + + //add emission if in base pass +#ifdef BASE_PASS + gl_FragColor.rgb += emission; +#endif // gl_FragColor = vec4(normal, 1.0); #endif //unshaded |