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cof
11-10-2005, 11:23 PM
I am working on a morphable model at the moment. I have a dataset of some heads and want to morph between them.
i compute my vertices in the fragment shader (since i have 24 pipelines there) as a linear combination of my datas of the dataset. I write the result in a Vertex Buffer Object, which I received as a sampler2D in my frag shader. I am not quite sure if my Vertex Shader in a second rendering pass has the possiblity to access this data or if I have to pass it pack to the CPU first, what would be kind of a loss since the appropriate data is already in shared memory between vertex and texture memory.

yooyo
11-11-2005, 12:45 AM
Readback data into some PBO, then rebind that PBO as VBO and setup vertex pointer. This should work...

yooyo