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1. Adrian Cochrane (alcinnz@floss.social)'s status on Wednesday, 08-Mar-2023 07:12:37 JST Adrian Cochrane

   These triangles typically cover only a couple of tiles, so processing them involves deciding whether to render them & dispatching to the appropriate tiles, one at a time.

   After completing interpolation, possibly subsampling the registered texture if any, & maybe running a fragment-shader we need to merge the results.

   An output-tile cache could significantly reduce reads/writes. Clustering each tile's processing could help, as could loosely-sorting the tile processing order.

   4/4 Fin for now!

   • Adrian Cochrane (alcinnz@floss.social)'s status on Wednesday, 08-Mar-2023 07:15:34 JST Adrian Cochrane

     in reply to

     P.S. The PlayStation1 GPU just rendered triangles, with no depth-buffer. There was a seperate co-processor for floating-point multiply-adds. Devs had to depth-sort triangles, which was less efficient & couldn't always be done perfectly.

     That's where its iconic quirks come from.

     4.5/4 Truly fin!