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Filtering Approaches for Real-Time Anti-Aliasing

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Presentation on theme: "Filtering Approaches for Real-Time Anti-Aliasing"— Presentation transcript:

1 Filtering Approaches for Real-Time Anti-Aliasing

2 Filtering Approaches for Real-Time Anti-Aliasing Distance-to-edge AA (DEAA) Hugh Malan CCP Games

3 Results

4 Distance to edge

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8 The postprocess

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10 Results

11 Problems Undersampling: Triangles thinner than a pixel Long, thin triangles - eg a very long quad Foreshortened triangles near silhouettes of organic objects, such as characters Subpixel gaps No distance-to-edge information: Interpenetrating geometry Shadow edges Texture aliasing

12 Other uses for the DEAA buffer Simulate transparency with alpha-to-coverage Better alpha-tested edges, eg foliage


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