feat: VRMUtils.precompileShaders
#1554
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`precompileShaders` is a function to time slice the shader compilations to prevent the main thread from being blocked This function only supports WebGLRenderer at the moment
improve time slicing efficiency by using `renderer.compileAsync`
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This PR introduces
VRMUtils.precompileShaders.precompileShadersis a function to time slice the shader compilations to prevent the main thread from being blocked.This function only supports WebGLRenderer at the moment.
Points need review
VRMUtilslately,,,WebGLRenderer.compile(),WebGLRenderer.compileAsync(),WebGLRenderer.initTexture()precompileShaders,compileShaders,compileShadersAsync,precompile,compile,timeslicedCompile,timeslicedCompileAsync,prepareMaterials,prepareMaterialsAsync, ...Promiseother than loader plugins.