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Results tagged with glsl
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user 15179
A programming language for OpenGL shaders.
6
votes
Accepted
GLSL subroutine not being used
After a lot of pain, I figured out that I was indirectly calling glUseProgram() twice with my framework. The first time, to set the subroutine, the second time, in the draw() method of my shader prog …
- 253
6
votes
1
answer
1k
views
GLSL subroutine not being used
I'm using a gaussian blur fragment shader. In it, I thought it would be concise to include 2 subroutines: one for selecting the horizontal texture coordinate offsets, and another for the vertical tex …
- 253
3
votes
2
answers
3k
views
Optimizing gaussian blur with linear filtering
There's a few (here, and here) gaussian blur tutorials out there suggesting that you can essentially cut the number of texture lookups in a gaussian blur shader in half by exploiting the GPU's hardwar …
- 253