lost_soul

A 3D walking simulator game
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skybox.fs (704B)

      1 #version 330
      2 
      3 // Input vertex attributes (from vertex shader)
      4 in vec3 fragPosition;
      5 
      6 // Input uniform values
      7 uniform samplerCube environmentMap;
      8 uniform bool vflipped;
      9 uniform bool doGamma;
     10 
     11 // Output fragment color
     12 out vec4 finalColor;
     13 
     14 void main()
     15 {
     16     // Fetch color from texture map
     17     vec3 color = vec3(0.0);
     18 
     19     if (vflipped) color = texture(environmentMap, vec3(fragPosition.x, -fragPosition.y, fragPosition.z)).rgb;
     20     else color = texture(environmentMap, fragPosition).rgb;
     21 
     22     if (doGamma)// Apply gamma correction
     23     {
     24         color = color/(color + vec3(1.0));
     25         color = pow(color, vec3(1.0/2.2));
     26     }
     27 
     28     // Calculate final fragment color
     29     finalColor = vec4(color, 1.0);
     30 }