サンプル

Texture.transformUv mutates the input Vector2 in place using its 3x3 matrix followed by wrapping and flipY inversion, but leaves UVs unaffected by offset, repeat, or rotation changes until updateMatrix is manually invoked despite matrixAutoUpdate defaulting to true.

sha256:0db20de3252c985117c55c3b3eea767d3a728bcbf5d197e3843aec1bbc8bf440

ケース

ゴール

Texture.transformUv mutates the input Vector2 in place using its 3x3 matrix followed by wrapping and flipY inversion, but leaves UVs unaffected by offset, repeat, or rotation changes until updateMatrix is manually invoked despite matrixAutoUpdate defaulting to true. HOW

パッケージ

three 0.185.1

環境

node

作成日

2026-08-17T09:22:51Z

よくある思い込み

Texture.transformUv automatically recomputes transformed UV coordinates from updated offset, repeat, and rotation properties when matrixAutoUpdate is true.

このサンプルの作者が、ここで開発者やモデルが期待するであろうこととして記録したもの。下の契約が実際に実行されたものだ。

コントラクト

• Texture.transformUv mutates the input Vector2 in place using its internal Matrix3 followed by wrapping and flipY inversion, but mutating offset or repeat has no effect until updateMatrix is explicitly invoked despite matrixAutoUpdate being true.
• Texture.transformUv applies RepeatWrapping, ClampToEdgeWrapping, and MirroredRepeatWrapping to out-of-bounds UV coordinates before applying flipY inversion.
• Setting texture mapping to non-UV modes like CubeReflectionMapping causes transformUv to return immediately without matrix transformation, wrapping, or flipY modification.
• Rotation around a configured center in Texture.updateMatrix properly transforms coordinates in accordance with the UV transform matrix.

ファイル

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

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9