Add WebGLShaderCache. #23022
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Add WebGLShaderCache. #23022
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Related issue: #22530
Description
Improves the performance of
getProgramCacheKey()by assigning IDs to custom shaders and use them as a replacement for the existing hash strings.Alternative implementation to #22978.
Performance tests in #22978 demonstrated that both PRs noticeably improve the performance in scenes with many custom materials.