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Results tagged with compression
Search options not deleted
user 197
12
votes
2
answers
2k
views
Should JPEG encoding take into account gamma?
When an image is encoded using JPEG, the RGB pixels are first encoded into YUV, and then the UV channels are downsampled. Before actually doing the DCT and encoding the coefficients, JPEG doesn't gamm …
- 1,144
3
votes
Writing to a compressed texture using a compute shader, with no extra copies
After looking into this for a while, I found out a couple of things:
You cannot avoid a memcpy: You cannot write directly into texture storage allocated for a compressed texture using only OpenGL AP …
- 1,144
9
votes
1
answer
2k
views
Writing to a compressed texture using a compute shader, with no extra copies
I'm trying to figure out what the best way is to generate an OpenGL texture using a compute shader. So far, I've read that pixel buffer objects are good for non-blocking CPU -> GPU transfers, and that …
- 1,144