Sample
three 0.185.1: PointLight defaults decay to 2 for physically correct inverse-square attenuation, distance to 0 for infinite range, and calculates luminous power (lm) as 4*pi times intensity (cd).
Verified sample for npm three 0.185.1: PointLight defaults decay to 2 for physically correct inverse-square attenuation, distance to 0 for infinite range…
sha256:a5494398bb668491795d158aa97766f9fdeb4a134c21d8c7084830879c263d7c
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
- PointLight defaults decay to 2 for physically correct inverse-square attenuation, distance to 0 for infinite range, and calculates luminous power (lm) as 4*pi times intensity (cd).
- Packages
- Symbols
-
- PointLight
- Environment
- node
- Created
- 2026-08-17T09:09:29Z
Contract
- PointLight defaults decay to 2 (physically correct inverse-square falloff) and distance to 0 (infinite cutoff distance), while dynamically calculating luminous power in lumens as 4*pi times luminous intensity in candela.
- PointLight power setter updates intensity to power / (4 * Math.PI), and intensity mutations update power to intensity * 4 * Math.PI.
- PointLight automatically initializes a PointLightShadow with a 90-degree 1:1 PerspectiveCamera for cubemap shadow projection, which is cloned independently on light.clone().
- PointLight serializes color as hex, intensity, distance, decay, and shadow to JSON, allowing ObjectLoader to reconstruct an equivalent PointLight instance.
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs