1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
|
[require]
GLSL >= 1.40
[vertex shader passthrough]
[fragment shader]
#version 140
/* On i965, the instruction for loading from a UBO array is likely to
* encounter trouble with the saturate flag produced by this clamping.
*/
uniform int i;
uniform ubo1 {
vec4 color[2];
};
void main()
{
gl_FragColor = 0.25 + 0.5 * clamp(color[i], 0.0, 1.0);
}
[test]
uniform int i 1
uniform vec4 color[0] 0.5 0.5 0.5 0.5
uniform vec4 color[1] -1 0 1 2
draw rect -1 -1 2 2
probe all rgba 0.25 0.25 0.75 0.75
|