Updated the notes on Kaiser filtering with some additional info and example images using NVIDIA Texture Tools to generate the mipmaps. Short version: Unity's Kaiser filter implementation is bad.
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How does the RGSS example work wrt mipmaps, if it only does tex2Dlod with the _Bias as the mip level?
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I am not using tex2Dlod, I’m using tex2Dbias, so it’s still relying on the GPU’s own mip level calculations, and allows for anisotropic filtering.
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Thanks
@bgolus. High quality article, clearly explained with useful visuals, and a great introduction to mip mapping. FYI:@Firefox frequently got stuck loading gifs (they got stuck like the image shows).@googlechrome had no problem. Maybe not a@Medium issue after all.pic.twitter.com/mfCLVqsAX0
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Happens in Chrome too. Might be related to using an ad blocker. Really it's because Medium is weird, hence the warning at the start.
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kick-ass post, thank you for this
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i feel the underlying problem we're looking at here is maintaining sampled integrals under transformation. i wonder if it is possible to store integrals with moments that give us more plausible gradients than simple trilinear lerps.
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Very cool. I tried doing something like this to smooth out low res point sampled textures for a stylized game, worked like a charm but it used a deferred renderer and produced a bunch of artifacts when shading. Probably lots of potential for VR though.
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Were you using point filtered textures with no mipmaps? If you're using a custom engine, you would probably be better off setting the min filter to linear and mag filter to point. Otherwise you could do something like this:https://forum.unity.com/threads/retro-shader-problems.464185/#post-3021722 …
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This is one of the best articles I've ever read!! And I want to especially thank you for this paragraph... I know exactly who it's calling out
and that misunderstanding of such a fundamental thing as mip-mapping had always been frustrating to seepic.twitter.com/okZmFXo2aJ
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I don't know if this article (or my more direct twitter pestering) helped, but I don't think I've heard them mention mip mapping in the last few videos they've done.
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