blob: 26c55d36b14f8ee35430fc34ebf0e73170492b53 (
plain)
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[require]
GLSL >= 1.20
[vertex shader]
varying vec4 values[4];
uniform int index;
void main()
{
values[0] = vec4(0.2);
values[index] = vec4(0.4);
values[2] = vec4(0.6);
values[3] = vec4(0.7);
gl_Position = gl_Vertex;
}
[fragment shader]
varying vec4 values[4];
uniform float f0;
uniform float f1;
void main()
{
gl_FragColor = (f0 * values[0] +
f1 * values[1] +
f0 * values[2] +
f0 * values[3]);
}
[test]
uniform int index 1
uniform float f0 0.0
uniform float f1 1.0
draw rect -1 -1 2 2
probe rgba 1 1 0.4 0.4 0.4 0.4
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