And just to head off the discussion that happens every single thread:
- Yes, the PS1 had "jittery" vertices because 16 bits is not enough precision
- No, it was not because of using integers, you can use integers (AKA fixed-point) to do 3D just fine. If it had been 16.16 (32 bits total) it would probably look fine.
- No, this isn't the cause of the texture warping, that's because unlike the N64 it only supported affine texture mapping, not perspective-correct texture mapping. The PS1 saw every 3D triangle as just a 2D triangle, and texture mapping in 2D differs from texture mapping in 3D
- Yes, the texture warping is why many of the best-looking PS1 games were basically built on a grid or found other ways to use a large amount of small triangles instead of a small amount of large triangles.
- Yes, the PS1 had "jittery" vertices because 16 bits is not enough precision
- No, it was not because of using integers, you can use integers (AKA fixed-point) to do 3D just fine. If it had been 16.16 (32 bits total) it would probably look fine.
- No, this isn't the cause of the texture warping, that's because unlike the N64 it only supported affine texture mapping, not perspective-correct texture mapping. The PS1 saw every 3D triangle as just a 2D triangle, and texture mapping in 2D differs from texture mapping in 3D
- Yes, the texture warping is why many of the best-looking PS1 games were basically built on a grid or found other ways to use a large amount of small triangles instead of a small amount of large triangles.