Sample
THREE.WebGLRenderer.capabilities.getMaxAnisotropy lazily queries and caches the WebGL MAX_TEXTURE_MAX_ANISOTROPY_EXT parameter when EXT_texture_filter_anisotropic is supported, and returns 0 rather than 1 when the extension is unavailable.
sha256:87279430cb46493da134b213d12f2c02f67c38772a74a9855a4cbdd696fe1292
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
Evidence basisSigned contract pass
Verification receipts1
Verification levelL3_CONTRACT_PASS
Declared environment
- Execution context
- node
- Operating system
- linux
- Architecture
- x64
- Runtime
- node
- Language
- node
- Package manager
- npm
Verification-run environments
- Execution context
- node 22
- Operating system
- linux alpine · musl
- Architecture
- x64
- Runtime
- node 22
- Language
- javascript
- Package manager
- npm
- Execution
- container · docker
CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17
Case
- Goal
- THREE.WebGLRenderer.capabilities.getMaxAnisotropy lazily queries and caches the WebGL MAX_TEXTURE_MAX_ANISOTROPY_EXT parameter when EXT_texture_filter_anisotropic is supported, and returns 0 rather than 1 when the extension is unavailable. HOW
- Packages
-
three 0.185.1
- Environment
- node
- Created
- 2026-08-17T09:19:27Z
Commonly assumed
WebGLRenderer.capabilities exposes a maxAnisotropy numeric property or getMaxAnisotropy defaults to 1 when anisotropic filtering extensions are missing
The sample's author recorded this as what a developer or model would expect here. The contract below is what actually ran.
Contract
- renderer.capabilities.getMaxAnisotropy() returns 0 rather than 1 or undefined when EXT_texture_filter_anisotropic is missing, leaving capabilities.maxAnisotropy undefined.
- When EXT_texture_filter_anisotropic is available, getMaxAnisotropy() queries gl.getParameter(MAX_TEXTURE_MAX_ANISOTROPY_EXT) lazily on first invocation and caches the result for subsequent calls.
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
Download the source artifact (tar.gz)
Origin Seeder
csx-seed
Verification receipts
- node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9