Addons - Compute Prefix Sum #32231
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Addons - Compute Prefix Sum #32231
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work on src use setup approach and register functions that need to be created bitcountNode revert glslNodeBuilder changes lint-fix revert unintended changes to glslNodeBuilder and MathNode, change bitCount helper function names remove extra _include change mainLayout function to accurately reflect WGSL documentation (component wise bitCounts rather than accumulative bitCounts fix nodeType init branch fix prefix sum from other branch eod changes validate reduction, fix display/debug issues fix prefix sum errors fix fix spine scan and work on fixing downsweep add comments work work working prefix sum
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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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| import { | ||
| StorageInstancedBufferAttribute | ||
| } from 'three'; | ||
| import { Fn, If, instancedArray, invocationLocalIndex, countTrailingZeros, Loop, workgroupArray, subgroupSize, workgroupBarrier, workgroupId, uint, select, invocationSubgroupIndex, dot, uvec4, vec4, float, subgroupAdd, array, subgroupShuffle, subgroupInclusiveAdd, subgroupBroadcast, invocationSubgroupMetaIndex, arrayBuffer, storage } from 'three/tsl'; |
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Related issue: #31990
Description
Adds a GPGPU Prefix Sum module to the addons for the WebGPURenderer and adjusts some of the syntax in the other GPGPU examples.
In draft till #31990 is complete since it relies heavily on countTrailingZeros and needs to be rebased.