summaryrefslogtreecommitdiff
path: root/tests/shaders/glsl-fs-clamp-5.shader_test
blob: 0bcdaedbb1a21311dbe001cc0945625fadae1ee7 (plain)
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
[require]
GLSL >= 1.10

[vertex shader]
void main()
{
	gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}

[fragment shader]
uniform vec4 color;

void main()
{
	/* The i965 driver failed when it was faced with a saturate of
	 * a uniform -- https://bugs.freedesktop.org/show_bug.cgi?id=57166
	 */
	gl_FragColor = clamp(color, 0.0, 1.0) * 0.5 + 0.25;
}

[test]
uniform vec4 color -1.0 1.0 2.0 0.0

draw rect -1 -1 2 2
probe all rgba 0.25 0.75 0.75 0.25