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Merge remote-tracking branch 'origin/rnv/vtk_opengl2_backend' into V8_1_BR
[modules/gui.git] / src / VTKViewer / resources / Background.fs.glsl
1 #version 130
2
3 #if (__VERSION__ >= 130)
4   out vec4 outColor;
5   #define Texture2D texture
6 #else
7   #define outColor gl_FragColor
8   #define Texture2D texture2D
9 #endif
10
11 uniform int       uUseTexture;
12 uniform sampler2D uBackgroundTexture;
13
14 in vec4 VSColor;
15 void main()
16 {
17   if (uUseTexture == 1)
18     outColor = Texture2D(uBackgroundTexture, VSColor.xy);
19   else
20     outColor = VSColor;
21 }