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
|
// [config]
// expect_result: fail
// glsl_version: 1.10
//
// [end config]
/* FAIL
*
* From page 17 (page 23 of the PDF) of the GLSL 1.20 spec:
*
* "Samplers cannot be treated as l-values; hence cannot be used as
* out or inout function parameters, nor can they be assigned into."
*/
uniform sampler3D volShadSampler0;
struct VolShad
{
sampler3D texture;
int samples;
int channels;
mat4 worldToScreen;
};
vec3 testfunc(VolShad vs, vec3 p)
{
return vec3(1.0, 1.0, 1.0);
}
void main()
{
VolShad volShad0;
volShad0.texture = volShadSampler0;
volShad0.samples = 8;
volShad0.channels = 3;
volShad0.worldToScreen = mat4(0.987538, 0.9114460, 0.6269080, 0.6269080,
0.000000, 2.2036100, -0.496881, -0.496880,
1.031690, -0.872442, -0.600081, -0.600081,
-47.4917, 35.483100, 75.264900, 75.364800);
vec3 outputColor = testfunc(volShad0, vec3(1, 1, 1));
gl_FragColor = vec4(outputColor, 1);
}
|
