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?
@nothings I guess if you assume that you're always using all four most of the time, then yeah, you get less "overfill" in the cache.
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@cmuratori@nothings Some parts of texture units are built RGBA-wide, so using only a few channels wastes gates. -
@cmuratori@nothings Also, most are designed so planar means multiple fetches, so you redo UV/mip calcs for each plane. - Show replies
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