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GPU Gems 2: Programming Techniques for High-Performance Graphics and General-Purpose Computation by Randima Fernando, Matt Pharr

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Chapter 21. High-Quality Antialiased Rasterization

Dan WexlerNVIDIA Corporation

Eric EndertonNVIDIA Corporation

Finely detailed 3D geometry can show significant aliasing artifacts if rendered using native hardware multisampling, because multisampling is currently limited to one-pixel box filtering and low sampling rates. This chapter describes a tiled supersampling technique for rendering images of arbitrary resolution with arbitrarily wide user-defined filters and high sampling rates. The code presented here is used in the Gelato film renderer to produce images of uncompromising quality using the GPU. Figure 21-1 shows an example.

An Image Rendered with Gelato

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