accepted

Semantic Mesh Writer

This report separates published implementation state from accepted evidence. Every value below comes from the schema-v2 registry, the emitted source manifest, or promoted same-lab artifacts.

Open demo Owning skill Published source manifest Registry JSON Tracked v2 bundle manifest Canonical source

Lab id: semantic-mesh-writer
Kind: Canonical Lab
Owning skill: Procedural Geometry
Execution: rendering
Three.js: 0.185.1
Source hash: sha256:29d2b3162053692b6582029c67743f09e8ea8f0087e44190b1fb6c3c782ac5da
Published bundle hash: sha256:252a24d593e2ae920385f93d02e92b7e30df7cf379f034b89013c0f15c76a564
Build revision: sha256:348d7584a398e339bdf08ac952ded6eb67b5ed813416a6fe3ba445615164b63a
Renderer: Not promoted
Backend: Not promoted
Evidence contract: v2
Tracked release bundle: Present

Claim verdicts

canonicalAcceptancePASS

hardwarePerformanceNOT_CLAIMED

Promoted same-lab media

No same-lab evidence image is promoted for this report. The page intentionally shows status and proof requirements instead of substitute art.

Required capability and runtime proof

Capabilities

native-webgpuincomplete

The canonical controller blocks unless renderer.backend.isWebGPUBackend is true after initialization.

storage-buffersincomplete

StorageInstancedBufferAttribute and IndirectStorageBufferAttribute are required by the batching-comparison and indirect-draw routes.

Runtime proof

renderer-initincomplete

Await createGeometryLabController(), which awaits renderer.init() before constructing proof state.

backend-is-webgpuincomplete

Capture renderer.backend.isWebGPUBackend === true from the initialized controller.

mechanism-reachableincomplete

Load every physical mechanism route and reconcile the selected runtime graph against its locked startup mode.

aligned-readbackincomplete

Capture MRT pixels using the controller's integer 256-byte-aligned row-stride contract.

indirect-commandincomplete

Read back the compute-written indexed indirect command and reconcile its instanceCount with submitted work.

Capture state

Field	Published value
Primary route	`/demos/semantic-mesh-writer/`
Cameras	`near, design, far`
Seeds	`0x00000001, 0x9e3779b9`
Modes	`frame-and-rail-profile, branch-rings, semantic-groups-and-materials, batching-comparison, dynamic-updates, indirect-draw`
Capture time	`Not present in the promoted report data`
Adapter identity	`Not promoted`
Raw readback hashes	`Not promoted`

Fixed routes

Kind	Id	Startup state	Status
scenario	`frame-and-rail-profile`	`{"mode":"frame-and-rail-profile"}`	accepted
scenario	`branch-rings`	`{"mode":"branch-rings"}`	accepted
scenario	`semantic-groups-and-materials`	`{"mode":"semantic-groups-and-materials"}`	accepted
scenario	`batching-comparison`	`{"mode":"batching-comparison"}`	accepted
scenario	`dynamic-updates`	`{"mode":"dynamic-updates"}`	accepted
scenario	`indirect-draw`	`{"mode":"indirect-draw"}`	accepted
mechanism	`frame-and-rail-profile`	`{"mode":"frame-and-rail-profile"}`	accepted
mechanism	`branch-rings`	`{"mode":"branch-rings"}`	accepted
mechanism	`semantic-groups-and-materials`	`{"mode":"semantic-groups-and-materials"}`	accepted
mechanism	`batching-comparison`	`{"mode":"batching-comparison"}`	accepted
mechanism	`dynamic-updates`	`{"mode":"dynamic-updates"}`	accepted
mechanism	`indirect-draw`	`{"mode":"indirect-draw"}`	accepted
tier	`hero`	`{"tier":"hero"}`	accepted
tier	`standard`	`{"tier":"standard"}`	accepted
tier	`crowd`	`{"tier":"crowd"}`	accepted

Locked tier contracts

hero · accepted

{
  "targetClass": "close-inspection",
  "frameTargetMs": null,
  "resolutionPolicy": {
    "dprCap": 2
  },
  "mechanismLimits": {
    "profileSamples": 104,
    "railSegments": 96,
    "branchRadialSegments": 20
  },
  "resourceLimits": {
    "maxVertices": 35000,
    "maxTriangles": 70000
  },
  "degradationFromPrevious": [],
  "preservedInvariants": [
    "semantic extrema",
    "hard edges",
    "material slots",
    "physical UV scale"
  ]
}

standard · accepted

{
  "targetClass": "ordinary-view-envelope",
  "frameTargetMs": null,
  "resolutionPolicy": {
    "dprCap": 1.5
  },
  "mechanismLimits": {
    "profileSamples": 64,
    "railSegments": 48,
    "branchRadialSegments": 12
  },
  "resourceLimits": {
    "maxVertices": 8000,
    "maxTriangles": 16000
  },
  "degradationFromPrevious": [
    "reduced profile and longitudinal tessellation under projected-error gates"
  ],
  "preservedInvariants": [
    "semantic extrema",
    "hard edges",
    "material slots",
    "physical UV scale"
  ]
}

crowd · accepted

{
  "targetClass": "distant-repetition",
  "frameTargetMs": null,
  "resolutionPolicy": {
    "dprCap": 1
  },
  "mechanismLimits": {
    "profileSamples": 40,
    "railSegments": 24,
    "branchRadialSegments": 6
  },
  "resourceLimits": {
    "maxVertices": 2600,
    "maxTriangles": 5200
  },
  "degradationFromPrevious": [
    "removed sub-pixel curvature samples under projected-error gates"
  ],
  "preservedInvariants": [
    "primary silhouette",
    "semantic extrema",
    "material slots",
    "physical UV scale"
  ]
}

Limitations

2 required capability records remain incomplete.
5 required runtime-proof records remain incomplete.
No current-hardware performance claim is published without named-adapter timestamp evidence.