accepted

WebGPU Node GTAO

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: webgpu-node-gtao
Kind: Canonical Lab
Owning skill: Ambient Contact Shading
Execution: rendering
Three.js: 0.185.1
Source hash: sha256:d151b7e9512ba31533653581a04ac7359ab067c8ae0963625f675ecdc4781455
Published bundle hash: sha256:7fbd73ef0e48d0ee7e7da556ce06c24071e704535c206b0babf683a01d74f311
Build revision: sha256:b951f17018466135b2d841a246127bf96c7f617f6274e73736ec257a7293369f
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-webgpuaccepted

correctness capture-session + evidence-manifest bound to current sourceHash sha256:d151b7e9512ba31533653581a04ac7359ab067c8ae0963625f675ecdc4781455; validate:artifacts structuralVerdict PASS; WebGPUBackend deviceIdentityVerified.

standard-depthaccepted

No capability evidence is recorded.

Runtime proof

renderer-initaccepted

capture-lab-browser correctness session (current sourceHash) completed with initialized metrics and standard presentation readbacks.

backend-is-webgpuaccepted

rendererBackendEvidence.isWebGPUBackend===true in capture-session finalRuntime metrics for current sourceHash bundle.

mechanism-reachableaccepted

mechanism-metrics.runtimeReachability routes + material-difference pairs on current-hash correctness PNGs; mechanismCorrectness PASS.

aligned-readbackaccepted

normalized/transport readbacks with 256-byte-aligned row strides for 1200x800 captures in current-hash correctness bundle.

one-prepass-one-lit-passaccepted

No runtime evidence is recorded.

current-adapter-gpu-timestampsaccepted

capture-status.gpuTimingVerdict remains INSUFFICIENT_EVIDENCE; no named-adapter timestamp ledger was accepted.

Capture state

Field	Published value
Primary route	`/demos/webgpu-node-gtao/`
Cameras	`near, design, far`
Seeds	`0x00000001, 0x9e3779b9`
Modes	`final, raw-ao, denoised-ao, normal, raw-depth, linear-view-z, sky-classification, velocity, bent-normal, indirect-delta, disabled, no-post, diagnostics`
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	`wall-receiver`	`{"scenario":"wall-receiver"}`	accepted
scenario	`thin-silhouette`	`{"scenario":"thin-silhouette"}`	accepted
scenario	`sky-edge`	`{"scenario":"sky-edge"}`	accepted
scenario	`emissive-direct`	`{"scenario":"emissive-direct"}`	accepted
scenario	`non-square-projection`	`{"scenario":"non-square-projection"}`	accepted
scenario	`moving-occluder`	`{"scenario":"moving-occluder"}`	accepted
scenario	`bent-normal-wall`	`{"scenario":"bent-normal-wall"}`	accepted
mechanism	`scalar-gtao`	`{"mechanism":"scalar-gtao"}`	accepted
mechanism	`bilateral-denoise-and-halo`	`{"mechanism":"bilateral-denoise-and-halo"}`	accepted
mechanism	`temporal-ao`	`{"mechanism":"temporal-ao"}`	accepted
mechanism	`bent-normal-wall`	`{"mechanism":"bent-normal-wall"}`	accepted
mechanism	`indirect-only-application`	`{"mechanism":"indirect-only-application"}`	accepted
mechanism	`depth-conventions`	`{"mechanism":"depth-conventions"}`	accepted
tier	`ultra`	`{"tier":"ultra"}`	accepted
tier	`high`	`{"tier":"high"}`	accepted
tier	`medium`	`{"tier":"medium"}`	accepted

Locked tier contracts

ultra · accepted

{
  "targetClass": "current-adapter",
  "frameTargetMs": null,
  "resolutionPolicy": {
    "aoScale": 0.5
  },
  "mechanismLimits": {
    "samples": 16
  },
  "resourceLimits": {},
  "degradationFromPrevious": [],
  "preservedInvariants": [
    "indirect-only-application",
    "standard-depth"
  ]
}

high · accepted

{
  "targetClass": "current-adapter",
  "frameTargetMs": null,
  "resolutionPolicy": {
    "aoScale": 0.5
  },
  "mechanismLimits": {
    "samples": 12
  },
  "resourceLimits": {},
  "degradationFromPrevious": [
    "reduce samples"
  ],
  "preservedInvariants": [
    "indirect-only-application",
    "standard-depth"
  ]
}

medium · accepted

{
  "targetClass": "current-adapter",
  "frameTargetMs": null,
  "resolutionPolicy": {
    "aoScale": 0.33
  },
  "mechanismLimits": {
    "samples": 8,
    "reconstruction": "raw"
  },
  "resourceLimits": {},
  "degradationFromPrevious": [
    "reduce AO resolution",
    "remove denoise from active graph"
  ],
  "preservedInvariants": [
    "indirect-only-application",
    "standard-depth"
  ]
}

Limitations

No current-hardware performance claim is published without named-adapter timestamp evidence.