diff options
Diffstat (limited to 'drivers/gles3/shaders/scene.glsl')
| -rw-r--r-- | drivers/gles3/shaders/scene.glsl | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl index 4f2be8bf60..84daf839e9 100644 --- a/drivers/gles3/shaders/scene.glsl +++ b/drivers/gles3/shaders/scene.glsl @@ -104,8 +104,8 @@ layout(location = 14) in highp vec4 instance_xform2; layout(location = 15) in highp uvec4 instance_color_custom_data; // Color packed into xy, Custom data into zw. #endif -layout(std140) uniform GlobalVariableData { //ubo:1 - vec4 global_variables[MAX_GLOBAL_VARIABLES]; +layout(std140) uniform GlobalShaderUniformData { //ubo:1 + vec4 global_shader_uniforms[MAX_GLOBAL_SHADER_UNIFORMS]; }; layout(std140) uniform SceneData { // ubo:2 @@ -399,8 +399,8 @@ uniform samplerCube radiance_map; // texunit:-2 #endif -layout(std140) uniform GlobalVariableData { //ubo:1 - vec4 global_variables[MAX_GLOBAL_VARIABLES]; +layout(std140) uniform GlobalShaderUniformData { //ubo:1 + vec4 global_shader_uniforms[MAX_GLOBAL_SHADER_UNIFORMS]; }; /* Material Uniforms */ @@ -495,7 +495,7 @@ struct LightData { //this structure needs to be as packed as possible mediump float cone_attenuation; mediump float cone_angle; mediump float specular_amount; - bool shadow_enabled; + mediump float shadow_opacity; }; #ifndef DISABLE_LIGHT_OMNI layout(std140) uniform OmniLightData { // ubo:5 @@ -686,7 +686,10 @@ void light_compute(vec3 N, vec3 L, vec3 V, float A, vec3 light_color, float atte #endif // LIGHT_ANISOTROPY_USED // F float cLdotH5 = SchlickFresnel(cLdotH); - vec3 F = mix(vec3(cLdotH5), vec3(1.0), f0); + // Calculate Fresnel using cheap approximate specular occlusion term from Filament: + // https://google.github.io/filament/Filament.html#lighting/occlusion/specularocclusion + float f90 = clamp(50.0 * f0.g, 0.0, 1.0); + vec3 F = f0 + (f90 - f0) * cLdotH5; vec3 specular_brdf_NL = cNdotL * D * F * G; @@ -751,7 +754,7 @@ void light_process_omni(uint idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 f if (omni_lights[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)); + size_A = max(0.0, 1.0 - 1.0 / sqrt(1.0 + t * t)); } light_compute(normal, normalize(light_rel_vec), eye_vec, size_A, color, omni_attenuation, f0, roughness, metallic, omni_lights[idx].specular_amount, albedo, alpha, @@ -800,7 +803,7 @@ void light_process_spot(uint idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 f if (spot_lights[idx].size > 0.0) { float t = spot_lights[idx].size / max(0.001, light_length); - size_A = max(0.0, 1.0 - 1 / sqrt(1 + t * t)); + size_A = max(0.0, 1.0 - 1.0 / sqrt(1.0 + t * t)); } light_compute(normal, normalize(light_rel_vec), eye_vec, size_A, color, spot_attenuation, f0, roughness, metallic, spot_lights[idx].specular_amount, albedo, alpha, @@ -1049,6 +1052,7 @@ void main() { #else vec3 ref_vec = reflect(-view, normal); #endif + ref_vec = mix(ref_vec, normal, roughness * roughness); float horizon = min(1.0 + dot(ref_vec, normal), 1.0); ref_vec = scene_data.radiance_inverse_xform * ref_vec; specular_light = textureLod(radiance_map, ref_vec, roughness * RADIANCE_MAX_LOD).rgb; @@ -1107,7 +1111,7 @@ void main() { 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 * f0 + env.y; + specular_light *= env.x * f0 + env.y * clamp(50.0 * f0.g, 0.0, 1.0); #endif } |