fix: add global model cache to prevent duplicate loads and browser lag - #923
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khozakhulile27-netizen wants to merge 3 commits into
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fix: add global model cache to prevent duplicate loads and browser lag#923khozakhulile27-netizen wants to merge 3 commits into
khozakhulile27-netizen wants to merge 3 commits into
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khozakhulile27-netizen
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Abse2001 and
ShiboSoftwareDev
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May 23, 2026 06:59
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/claim #93 This PR adds a global in-memory model cache ( |
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✅ All CI checks passing (format-check, type-check, test, Vercel). This PR is ready for review and merge. |
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/attempt #93 |
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Shibosoftwaredev please review |
MikeGarciaAGM
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Jun 9, 2026
MikeGarciaAGM
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Looks good. Adding a global model cache is a practical way to avoid duplicate loads and the change stays well contained.
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Closes #93
Problem
The
load3DModelutility had no caching, so the same 3D model file (STL/OBJ/GLTF/WRL) would be fetched and parsed multiple times when multiple components share the same model URL. This caused duplicate network requests and redundant Three.js geometry creation, making the browser laggy.Fix
Added a
window.TSCIRCUIT_MODEL_CACHEglobal Map that stores in-flight load promises. Before fetching, the function checks the cache. If a cached result exists, it clones theObject3D(so each usage gets its own independent scene graph node) instead of re-fetching.This follows the same pattern already used in
use-global-obj-loader.ts.