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Update README with shader optimization details

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Added information about using textureQueryLod() and textureSize() for shader simplification.
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Rich Geldreich
2026-02-26 12:34:45 -05:00
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commit 3503e0b9e6
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shader_deblocking/README.md
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@@ -46,7 +46,7 @@ The shader can be easily simplified to sample the texture less by using less tap
Many variations and optimizations of this basic idea are possible. *Now shader engineers can directly impact memory consumption.* The better your deblocking shaders are tuned or your specific content, the bigger the ASTC block size you can ship. ASTC texture deblocking pixel shader engineering is now a memory optimization skill.
A simpler, [faster 5 tap filter variant is here](https://pastebin.com/jsF6nUZg). In practice, this usually looks just as good on most textures/images.
A simpler, [faster 5 tap filter variant is here](https://pastebin.com/jsF6nUZg). In practice, this usually looks just as good on most textures/images. ` textureQueryLod()` and `textureSize()` could also be used (with some API's) to simplify the shader further.
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