Fix Metal Mipmap Behvior #3610
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Fix Metal Mipmap Behvior #3610
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cwfitzgerald
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There are a few other things that don't look right with lod_clamp but could be addressed by a different PR.
lod_max_clampneeds to default to32(right now it defaults tof32::MAX)lod_clampis set toNoneiflod_max_clamp > 32which doesn't seem rightdx12andvulkanthen map alod_clamp: Noneto0.0..16.0which also doesn't seem right; I think we should makelod_clamprequired at the hal level
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K, went a little hog wild fixing up sampler stuff. I also brought aniso behavior inline with the spec and made the errors better. |
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Ah, actually one remaining thing regarding the LOD changes, could you also update the Default impl of the sampler descriptors? I'm not sure why we have 2 types of |
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Checklist
cargo clippy.RUSTFLAGS=--cfg=web_sys_unstable_apis cargo clippy --target wasm32-unknown-unknownif applicable.Description
Couple issues I found when debugging a problem:
NotMipmapped(which unconditionally samples mip 0) when the LodClamp was None. This is incorrect, LodClamp of None just means there's no restrictions on the Lod.texelFetch-ing texels of different mipmaps. This would potentially blend the mipmap levels in an unintended way.Also resolves #3275.
Testing
Tested using rend3.