All PSNR figures are luma PSNR. Each image was transcoded from the same compressed texture data.
ETC1 41.233
DXT1 40.9
ETC1 45.964
DXT1 45.322
ETC1 46.461
DXT1 44.865
ETC1 43.785
DXT1 43.406
ETC1 33.516
DXT1 33.339
Interesting to read:
ReplyDelete"Full transcoding on the GPU will only work on those GPU's that support LZ in hardware (or possibly a compute shader)"
just for curiosity:
can name these GPUs? all desktop GPUs supporting DXT formats support LZ in hardware?
mobile wise any GPU with LZ support?
should your work make vendors expose LZ hardware decoding in some way on graphic APIs?
thanks..
I know that some modern consoles support LZ in hardware. I'm no expert on this, but I suspect some AMD chips have LZ in hardware. It may also be possible to do a reasonable LZ decompressor in a compute shader.
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