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> Also it had forward texture mapping which significantly improves cache utilization and would be beneficial even today. Not really. Forward texture mapping si
by pezezin 7mo ago
> Also it had forward texture mapping which significantly improves cache utilization and would be beneficial even today.
Not really. Forward texture mapping simplifies texture access by making framebuffer access non-linear, reverse texture mapping has the opposite tradeoff. But that is assuming rectangular textures without UV mapping, like the Sega Saturn did; the moment you use UV mapping texture access will be non-linear no matter what. Besides that, forward texture mapping has serious difficulties the moment texture and screen sampling ratios don't match, which is pretty much always.
There is a reason why only the Saturn and the NV-1 used forward texture mapping, and the technology was abandoned afterwards.