Гамма-коррекция

shaders/bulb.frag

@@ -10,6 +10,11 @@ layout(std140, binding = 1) uniform Material
 
 in vec3 pos_local;
 
+layout(std140, binding = 4) uniform gamma
+{
+    float inv_gamma;
+};
+
 out vec4 color;
 
 uniform float angle;
@@ -19,7 +24,7 @@ void main()
 {   
     float cosA = dot(normalize(pos_local), normalize(direction));
     if (degrees(acos(cosA)) <= angle)
-        color = vec4(ka, 1);
+        color = vec4(pow(ka, vec3(inv_gamma)), 1);
     else
         discard;
 }

shaders/lighting.frag

@@ -41,6 +41,11 @@ uniform sampler2DArray sunShadowDepth;
 uniform samplerCubeArray pointShadowDepth;
 uniform sampler2D ssao;
 
+layout(std140, binding = 4) uniform gamma
+{
+    float inv_gamma;
+};
+
 out vec4 color; 
 
 void main() 
@@ -190,4 +195,7 @@ void main()
             }
         }
     }
+
+    // Применение гамма-коррекции
+    color.rgb = pow(color.rgb, vec3(inv_gamma));
 } 

shaders/skybox.frag

@@ -1,12 +1,17 @@
-#version 330 core
+#version 420 core
 out vec4 FragColor;
 
 in vec3 TexCoords;
 
 uniform samplerCube skybox;
 
+layout(std140, binding = 4) uniform gamma
+{
+    float inv_gamma;
+};
+
 void main()
 {    
-    FragColor = texture(skybox, TexCoords);
+    FragColor.rgb = pow(texture(skybox, TexCoords).rgb, vec3(inv_gamma));
     gl_FragDepth = 0.9999f;
 }