22 lines
420 B
GLSL
22 lines
420 B
GLSL
uniform samplerCube tex;
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uniform mat4 InvProjView;
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uniform vec2 screen;
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#if __VERSION__ >= 130
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out vec4 FragColor;
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#else
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#define FragColor gl_FragColor
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#endif
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void main(void)
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{
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vec3 eyedir = gl_FragCoord.xyz / vec3(screen, 1.);
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eyedir = 2.0 * eyedir - 1.0;
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vec4 tmp = (InvProjView * vec4(eyedir, 1.));
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eyedir = tmp.xyz / tmp.w;
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vec4 color = texture(tex, eyedir);
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FragColor = vec4(color.xyz, 1.);
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}
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