blob: 2f7d485d885d3517a6f28b5ed19a7978fcc35a2f (
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[require]
GLSL >= 1.10
[vertex shader]
void main()
{
gl_Position = gl_Vertex;
}
[fragment shader]
uniform vec4 color;
void main()
{
gl_FragColor = ((vec4(0.5, 0.0, 0.0, 0.0) + color) -
vec4(1.0, 0.0, 0.0, 0.0));
}
[test]
uniform vec4 color 0.5 1.0 0.0 0.0
draw rect -1 -1 2 2
probe all rgba 0.0 1.0 0.0 0.0
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