blob: 1511ad19a578f53cdea104683cb6e56bf8a80621 (
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[require]
GLSL >= 1.10
[vertex shader]
varying vec4 color;
void main()
{
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
vec4 vc = vec4(gl_Vertex.x - 2.0,
gl_Vertex.x + 2.0,
gl_Vertex.y + 2.0,
gl_Vertex.y - 2.0);
color = clamp(vc, 0.0, 1.0);
}
[fragment shader]
varying vec4 color;
void main()
{
gl_FragColor = color * 0.5 + 0.25;
}
[test]
draw rect -1 -1 2 2
probe all rgba 0.25 0.75 0.75 0.25
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