| Priority | medium |
|---|---|
| Bug ID | 82586 |
| Assignee | dri-devel@lists.freedesktop.org |
| Summary | UBO matrix in std140 struct does not work |
| Severity | normal |
| Classification | Unclassified |
| OS | All |
| Reporter | pavol@klacansky.com |
| Hardware | Other |
| Status | NEW |
| Version | git |
| Component | Drivers/Gallium/r600 |
| Product | Mesa |
I am not sure if the problem is actually in my code, but I tested it on nVidia
driver and it worked (but their compiler might have a fix for it internally).
Here is vertex shader:
#version 330
layout(location = 0) in vec4 position;
layout(std140) uniform Matrices {
mat4 model;
mat4 view;
mat4 projection;
} matrices;
out gl_PerVertex {
vec4 gl_Position;
};
/* interpolate to compute normal in fragment shader */
out vec3 v_position;
void main(void)
{
v_position = vec3(matrices.view * matrices.model * position);
gl_Position = matrices.projection * matrices.view * matrices.model *
position;
}
If I use only one matrix from the uniform it works. I have printed UBOs values
and they are just identity matrices.
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