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# This test verifies that varyings are assigned correctly when a fragment
# shader doesn't read from all elements of a varying array.
#
# This used to fail due to a bug in st/mesa that was visible in Overlord.
[require]
GLSL >= 1.10
[vertex shader]
uniform vec4 data;
varying vec4 a[3];
varying float b;
void main()
{
a[0] = data.xxxx;
a[1] = data.yyyy;
a[2] = data.zzzz;
b = data.w;
gl_Position = gl_Vertex;
}
[fragment shader]
varying vec4 a[3];
varying float b;
void main()
{
gl_FragColor = vec4(a[0].x, a[2].x, b, 1.0);
}
[test]
uniform vec4 data 0.2 0.4 0.6 0.8
draw rect -1 -1 2 2
probe all rgba 0.2 0.6 0.8 1.0
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