It's kind of weird to me that GPUs don't have planar textures now, I guess... maybe it shouldn't be weird to me, but it is?
@cmuratori So it just seems weird that textures are still all about interleaving. What am I missing?
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@cmuratori Interesting question, paging@Simon_Fe1 :) -
@webmarco@Simon_Fe1 I'm guessing it has something to do with things like 5-bit channels being too hard to do planar (like RGB565)?
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@cmuratori filtering is more efficient with swizzled textures, no? -
@kamidphish Swizzling != interleaving - they're different! - Show replies
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@cmuratori If you only used, say, R and A some of the time, maybe? Otherwise cache usage & bandwidth is better if channels are interleaved. -
@nothings Why is cache usage and bandwidth better if it is interleaved? You always have to fetch 16 texels at a time for the "warp"... - Show replies
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@cmuratori maybe in this way is simpler to skip some pixels, also in a shader if you want to use the different channel of a pixel... -
@cmuratori theye are already there and not somewhere else in the buffer. Maybe, never written any gpu code
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