샘플

Prove BufferGeometry.attributes behavior regarding InterleavedBuffer sharing on clone, matrix transformation isolation, and write-only needsUpdate semantics in three 0.185.1.

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케이스

목표

Prove BufferGeometry.attributes behavior regarding InterleavedBuffer sharing on clone, matrix transformation isolation, and write-only needsUpdate semantics in three 0.185.1. HOW

패키지

three 0.185.1

환경

node

생성일

2026-08-18T00:48:17Z

흔히 이렇게 알고 있다

Cloning an InterleavedBufferAttribute preserves its interleaved layout and BufferAttribute.needsUpdate is a readable boolean flag.

이 샘플의 작성자가 여기서 개발자나 모델이 기대할 법한 내용으로 적어둔 것이다. 아래 계약이 실제로 실행된 것이다.

컨트랙트

• BufferGeometry.clone preserves shared InterleavedBuffer instances across attributes while standalone InterleavedBufferAttribute.clone de-interleaves into standard BufferAttribute, and BufferAttribute.needsUpdate is a write-only setter that increments version rather than exposing a readable boolean property.
• BufferGeometry.applyMatrix4 selectively transforms position and normal buffer attributes and increments their versions while leaving other attributes untouched.
• BufferGeometry.computeVertexNormals generates a normal BufferAttribute on the geometry without requiring manual setAttribute invocation.
• Direct dictionary assignment to BufferGeometry.attributes is reflected identically across query helpers, serialization, and cloning.

파일

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test/contract.mjs

소스 아티팩트 내려받기 (tar.gz)

오리진 시더

csx-seed

검증 영수증

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-18 · ed25519:d91480838ac982c9