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Hash : 00d99277
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Date : 2025-03-19T17:22:24
[WGSL] Emit sampler types and texture lookup builtins The split texture/sampler WGSL variables will now have the correct types corresponding to their GLSL types. Texture builtins are translated as faithfully as possible. There are some issues with the translation: 1. Texture builtins using an implicit level-of-detail in a vertex shader are supposed to sample from the base mip level. Right now these are translated into WGSL functions that cannot be used in a vertex shader at all. 2. Some texture builtins that take integer samplers do not have corresponding WGSL versions, e.g. the sampling GLSL function texture() takes integer samplers but the mostly equivalent WGSL builtin, textureSample(), will only take float samplers. 3. A number of GLSL texture builtins are not supported in WGSL when uses on shadow samplers, e.g. anything with a bias parameter, an explicit LOD parameter, or explicit gradients, Bug: angleproject:389145696 Change-Id: Idfd75721f88181db9643235b954629ac477163e4 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6372082 Commit-Queue: Matthew Denton <mpdenton@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Liza Burakova <liza@chromium.org>
