TSL Transpiler: Support more matrix types, bool vectors. #30517
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Related issue: #27538
Description
The fix in #30501 is incomplete and does not account for
mat[234]x[234]types. Additionally, I addedbvec[234]type specifiers.hvec[234],dvec[234], andfvec[234]are reserved in the language but not used. This is still far from complete, and both storage qualifiers and storage type specifiers (e.g.sampler2D) are not supported. Further, suffixes and octal/hex representations are not tokenized correctly, if at all. I assume this is functionally only for porting ShaderToy shaders (unminified; no preprocessor) in examples, so this is best effort for that purpose. I maintain my own compiler aimed at robustness, but there is no clear way to have that serve as a front-end to node materials and have to maintain an IR over TSL.See "3.8 Keywords" of https://registry.khronos.org/OpenGL/specs/es/3.0/GLSL_ES_Specification_3.00.pdf.