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> It's not tearing, it's called affine swim, and on PC is a tell tale sign of a software renderer.

I've never hear the term "affine swim" before. Is it an artifact in rasterization (leaving gaps between triangles) or texturing (the term "affine" suggests that)?

For the rasterization, I've heard the term "watertight rasterization" (or airtight?) being used for a gapless rasterizer. It's not necessarily a software vs. hardware render issue, you can implement a watertight software rasterizer (of course) but I guess in the 1990s this was a performance vs. fidelity issue. And even with early 3d accelerators, the vertex processing was still done in the CPU.




Unfortunately I am not an expert but the Wikipedia article has an explanation: https://en.m.wikipedia.org/wiki/Texture_mapping#Affine_textu...

Affine swim refers to the unique results this kind of texturing results in (it looks like textures are swimming)




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