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by cma
1796 days ago
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The parent article already discusses that article, saying those GPUs don't use TBR in areas where the primitive count is too high or something: > Another class of hybrid architecture is one that is often referred to as tile-based immediate-mode rendering. As dissected in this article[1], this hybrid architecture is used since NVIDIA’s Maxwell GPUs. Does that mean that this architecture is like a TBR one, or that it shares all benefits of both worlds? Well, not really… What the article and the video fails to show is what happens when you increase the primitive count. Guillemot’s test application doesn’t support large primitive counts, but the effect is already visible if we crank up both the primitive and attribute count. After a certain threshold it can be noted that not all primitives are rasterized within a tile before the GPU starts rasterizing the next tile, thus we’re clearly not talking about a traditional TBR architecture. [1] https://www.realworldtech.com/tile-based-rasterization-nvidi... |
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