CodeSampleX

Sample

three 0.185.1: CanvasTexture defaults flipY to true to invert UV y-coordinates during transformUv, leaves transformUv unaffected by offset and repeat changes until updateMatrix is explicitly invoked despite matrixAutoUpdate being true, serializes metadata type as Texture, and dynamically queries width and height from its canvas source.

Verified sample for npm three 0.185.1: CanvasTexture defaults flipY to true to invert UV y-coordinates during transformUv, leaves transformUv unaffected by…

sha256:ccfffdc4d532f6655a078a8aec64c2e1fcba5f233b00b6548e2fc29475452d30

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
2
Signing keys that built it
2
Declared environment node linux x64 node node npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-17
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-18

Case

HOW
Goal
CanvasTexture defaults flipY to true to invert UV y-coordinates during transformUv, leaves transformUv unaffected by offset and repeat changes until updateMatrix is explicitly invoked despite matrixAutoUpdate being true, serializes metadata type as Texture, and dynamically queries width and height from its canvas source.
Packages
Symbols
  • THREE.CanvasTexture
Environment
node
Created
2026-08-17T09:13:42Z

Contract

  1. CanvasTexture transforms UV coordinates with flipY inversion but leaves transformUv unaffected by offset or repeat changes until updateMatrix is called manually, even when matrixAutoUpdate is true.
  2. CanvasTexture constructor applies default texture wrapping, filtering, RGBA format, and NoColorSpace while dynamically computing width and height from the underlying canvas.
  3. Calling transformUv on non-UV mappings skips matrix transformation and flipY inversion entirely.
  4. Serializing CanvasTexture with toJSON outputs metadata type Texture rather than CanvasTexture and captures wrap, filtering, and flipY settings.
  5. Setting values with setValues copies Vector2 properties and dispatches synchronous events on dispose.

Files

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

Download the source artifact (tar.gz)

Origin Seeder

csx-seed