Sample
three 0.185.1: InstancedMesh retains type 'Mesh' while identifying via isInstancedMesh, initializes instance matrices to identity, lazily allocates instanceColor with default white on first write, and maps raycast intersections to instanceId.
Verified sample for npm three 0.185.1: InstancedMesh retains type 'Mesh' while identifying via isInstancedMesh, initializes instance matrices to identity…
sha256:8454974a0cab4d93b0cf9ad4f2e64b2a4ada01e8766dc0f2ee4f94ae26108f9b
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
- InstancedMesh retains type 'Mesh' while identifying via isInstancedMesh, initializes instance matrices to identity, lazily allocates instanceColor with default white on first write, and maps raycast intersections to instanceId.
- Packages
- Symbols
-
- InstancedMesh
- Environment
- node
- Created
- 2026-08-17T09:07:02Z
Contract
- InstancedMesh inherits type 'Mesh' while identifying via isInstancedMesh true, initializes all instance matrices to identity, and keeps instanceColor null until setColorAt is called.
- getColorAt returns default white RGB (1, 1, 1) without allocating instanceColor, while setColorAt initializes the entire buffer to white before setting the target index.
- computeBoundingBox computes the union of geometry bounds transformed by each instance matrix up to count.
- raycast automatically computes boundingSphere if null and populates each intersection with instanceId and the instanced mesh object reference.
- clone and ObjectLoader.parse retain instanceMatrix, instanceColor, and count.
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs