tests/shaders/glsl-vs-functions-2.shader_test

   1 [require]
   2 GLSL >= 1.10
   3
   4 [vertex shader]
   5 vec4 y_adjust(vec4 pos)
   6 {
   7         vec4 x;
   8
   9         if (pos.x > 0.0)
  10                 x = vec4(-0.5, 0.0, 0.0, 0.0);
  11         else
  12                 x = vec4(1.5, 0.0, 0.0, 0.0);
  13
  14         if (pos.y > 0.0)
  15                 return vec4(0.0, -0.5, 0.5, 0.0) + x;
  16         else
  17                 return vec4(0.0, 1.5, 0.5, 0.0) + x;
  18 }
  19
  20 void main()
  21 {
  22         gl_FrontColor = gl_Vertex + y_adjust(gl_Vertex);
  23         gl_Position = gl_Vertex;
  24 }
  25
  26 [fragment shader]
  27 void main()
  28 {
  29         gl_FragColor = gl_Color;
  30 }
  31
  32 [test]
  33 draw rect -1 -1 2 2
  34 probe all rgb 0.5 0.5 0.5 0.5