I tried using various drivers, many different loops, even unrolled the whole loop myself, but it didn't helped. Finally I tried running, the same program on a desktop GeForce GTX 460, and it worked....

Nope, that's not it. If i start to unroll the loop by hand I can get few times more data processed without any issue, that would cause an error while processing in a loop.

Thanks, for your reply.

I tried adding this option, but it gives me compilation errors.

I changed the code fixing all the warnings, and now it's like this:



"uniform sampler2D myTexture;"...

Hello,

I'm trying to write an image fusion program in OpenGL/GLSL. At one point I need to calculate a cumulated histogram for a 7x7 pixel area. In fragment shader I'm trying to use a function:

...