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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
[require]
GLSL >= 1.10
[vertex shader]
/* Verify that array varyings and non-array varyings are properly placed
* together. If they are, the result in the fragment program will be:
*
* (( 0.0, 0.2, 1.0, 0.33) + (-1.0, 0.3, 0.0, 0.33) + ( 1.0, 0.0, -1.0, 0.34))
* * ( 2.0, 2.0, 2.0, 0.0) =
*
* ((-1.0, 0.5, 1.0, 0.66) + ( 1.0, 0.0, -1.0, 0.34))
* * ( 2.0, 2.0, 2.0, 0.0) =
*
* ((0.0, 0.5, 0.0, 1.0) * (2.0, 2.0, 2.0, 1.0) =
*
* (0.0, 1.0, 0.0, 1.0)
*
* If either element of the array overlaps one of the non-arrays, a different
* value will result.
*
* This reproduces one of the errors seen in the Humus demo Raytraced Shadows.
* See bugzilla #29784.
*/
varying vec4 a;
varying vec4 b[2];
varying vec4 c;
void main()
{
gl_Position = gl_Vertex;
a = vec4( 0.0, 0.2, 1.0, 0.33);
b[0] = vec4(-1.0, 0.3, 0.0, 0.33);
b[1] = vec4( 1.0, 0.0, -1.0, 0.34);
c = vec4( 2.0, 2.0, 2.0, 1.0);
}
[fragment shader]
varying vec4 a;
varying vec4 b[2];
varying vec4 c;
void main()
{
gl_FragColor = (a + b[0] + b[1]) * c;
}
[test]
draw rect -1 -1 2 2
relative probe rgba (0.1, 0.1) (0.0, 1.0, 0.0, 1.0)
|
