Nodes: IndexNode - invocationLocalIndex
#29202
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📦 Bundle sizeFull ESM build, minified and gzipped.
🌳 Bundle size after tree-shakingMinimal build including a renderer, camera, empty scene, and dependencies.
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sunag
reviewed
Aug 22, 2024
sunag
changed the title
invocationLocalIndex
This was referenced Aug 26, 2024
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Description
Adds a new LOCAL scope to IndexNode. This scope allows the user to access the local_invocation_index builtin as a node within a TSL function. While this functionality is primarily intended for use in applications targeting WebGPU, I'm investigating whether parity with the WebGLBackend could potentially be maintained by taking the modulus of the gl_instanceID by a compute shader's workgroup size.
Reference definition here:
https://www.w3.org/TR/WGSL/#local-invocation-index-builtin-value