wzw9803
commented
1 year ago I tested Oasis, Three, T3d - master, T3d - feat-specular-antiAliasing - SPECULAR_AA2, Babylon, PlayCanvas antialiasing with the same model. PlayCanvas uses TAA anti-aliasing. I think the effect is the best when the camera is still, so we take the effect of PlayCanvas as the standard and have the following conclusions:
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Babylon anti-aliasing works best, but maybe a bit too much, some highlight details seem to be lost. (maybe caused by different lighting)
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T3d - feat-specular-antiAliasing - SPECULAR_AA2 Anti-aliasing effect Second, the advantage is that the anti-aliasing strength is adjustable, you can choose between anti-aliasing and highlight details, and adjust it to the highest strength, which is closer to the Babylon effect.
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Oasis is slightly better than Three because Oasis handles NormalMap.
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Three.
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T3d - master
Now we are still not sure which anti-aliasing method to use, so this branch is temporarily reserved, and more scenarios may be needed for testing.
Resources: Test Model: dreadroamer
In this commit, we optimized the anti-aliasing of specular. Instead of only filtering geometryNormal before, we added filtering for normalMap.
This is a small change. We plan to do another optimization in the future. We may add some parameters to the material to control the strength of anti-aliasing to meet the different needs of different scenarios.
And thanks again for the relevant information provided by @VanderSP!
Reference : Tokuyoshi and Kaplanya, Stable Geometric Specular Antialiasing with Projected-Space NDF Filtering, 2021 Tokuyoshi and Kaplanyan, Improved Geometric Specular Antialiasing, 2019 Tokuyoshi, Error Reduction and Simplification for Shading Anti-Aliasing, 2017 Kaplanyan, Rendering Highly Specular Materials, 2016 Kaplanyan, NDFFiltering, 2016 Rock-Solid Shading, Dan Baker and Stephen Hill, 2012 Stephen Hill, Specular Showdown, 2011