diff options
Diffstat (limited to 'drivers/gles3/shaders/scene.glsl')
| -rw-r--r-- | drivers/gles3/shaders/scene.glsl | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl index 12cbe02d0c..bcaf4a57a8 100644 --- a/drivers/gles3/shaders/scene.glsl +++ b/drivers/gles3/shaders/scene.glsl @@ -3,6 +3,8 @@ #define M_PI 3.14159265359 +#define SHADER_IS_SRGB false + /* from VisualServer: @@ -514,6 +516,7 @@ VERTEX_SHADER_CODE /* clang-format off */ [fragment] + /* texture unit usage, N is max_texture_unity-N 1-skeleton @@ -533,6 +536,7 @@ uniform highp mat4 world_transform; /* clang-format on */ #define M_PI 3.14159265359 +#define SHADER_IS_SRGB false /* Varyings */ @@ -1020,16 +1024,27 @@ LIGHT_SHADER_CODE #if defined(SPECULAR_BLINN) + //normalized blinn vec3 H = normalize(V + L); float cNdotH = max(dot(N, H), 0.0); - float intensity = pow(cNdotH, (1.0 - roughness) * 256.0); + float cVdotH = max(dot(V, H), 0.0); + float cLdotH = max(dot(L, H), 0.0); + float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; + float blinn = pow(cNdotH, shininess); + blinn *= (shininess + 8.0) / (8.0 * 3.141592654); + float intensity = (blinn) / max(4.0 * cNdotV * cNdotL, 0.75); + specular_light += light_color * intensity * specular_blob_intensity * attenuation; #elif defined(SPECULAR_PHONG) vec3 R = normalize(-reflect(L, N)); float cRdotV = max(0.0, dot(R, V)); - float intensity = pow(cRdotV, (1.0 - roughness) * 256.0); + float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25; + float phong = pow(cRdotV, shininess); + phong *= (shininess + 8.0) / (8.0 * 3.141592654); + float intensity = (phong) / max(4.0 * cNdotV * cNdotL, 0.75); + specular_light += light_color * intensity * specular_blob_intensity * attenuation; #elif defined(SPECULAR_TOON) @@ -1070,11 +1085,11 @@ LIGHT_SHADER_CODE float G = G_GGX_2cos(cNdotL, alpha) * G_GGX_2cos(cNdotV, alpha); #endif // F - float F0 = 1.0; // FIXME - float cLdotH5 = SchlickFresnel(cLdotH); - float F = mix(cLdotH5, 1.0, F0); + //float F0 = 1.0; + //float cLdotH5 = SchlickFresnel(cLdotH); + //float F = mix(cLdotH5, 1.0, F0); - float specular_brdf_NL = cNdotL * D * F * G; + float specular_brdf_NL = cNdotL * D /* F */ * G; specular_light += specular_brdf_NL * light_color * specular_blob_intensity * attenuation; #endif @@ -1121,8 +1136,9 @@ float sample_shadow(highp sampler2DShadow shadow, vec2 shadow_pixel_size, vec2 p avg += textureProj(shadow, vec4(pos + vec2(0.0, shadow_pixel_size.y * 2.0), depth, 1.0)); avg += textureProj(shadow, vec4(pos + vec2(0.0, -shadow_pixel_size.y * 2.0), depth, 1.0)); return avg * (1.0 / 13.0); +#endif -#elif defined(SHADOW_MODE_PCF_5) +#ifdef SHADOW_MODE_PCF_5 float avg = textureProj(shadow, vec4(pos, depth, 1.0)); avg += textureProj(shadow, vec4(pos + vec2(shadow_pixel_size.x, 0.0), depth, 1.0)); @@ -1131,7 +1147,9 @@ float sample_shadow(highp sampler2DShadow shadow, vec2 shadow_pixel_size, vec2 p avg += textureProj(shadow, vec4(pos + vec2(0.0, -shadow_pixel_size.y), depth, 1.0)); return avg * (1.0 / 5.0); -#else +#endif + +#if !defined(SHADOW_MODE_PCF_5) || !defined(SHADOW_MODE_PCF_13) return textureProj(shadow, vec4(pos, depth, 1.0)); |