Native WebGPU LUT Atmosphere

Interactive Three.js WebGPU/TSL demo for Native WebGPU LUT Atmosphere, with 6 scenarios, 6 mechanisms, and 3 quality tiers and evidence-gated validation.

Evidence status: The implementation is available for technical review, but its native-WebGPU runtime and evidence gates remain incomplete.

Readiness & remaining fixes 4

4 open closure items. Loadable does not mean accepted or performance-valid.

P0Define and measure the target performance contract

The ultra, high, mobile tiers have no accepted frame target. Record named device/browser/GPU, viewport, DPR, sustained CPU/GPU/presentation p50 and p95, deadline misses, memory, and settled quality. Submission time is not GPU timing.
tiers[].frameTargetMs
P0Current Adapter GPU Timestamps runtime proof

Correctness capture profile disables timestamp queries; no named-adapter GPU timing envelope recorded.
runtimeProof.current-adapter-gpu-timestamps
P1Capture a current-source evidence bundle

Publish source-hash-bound renderer/backend facts, required diagnostic images, aligned readbacks, resource inventory, timing method, and limitations; directly inspect the important artifacts before promotion.
evidenceBundle
P2Close tier-specific acceptance

Validate and promote ultra, high, mobile as independent visual and performance contracts without crossing their protected invariants.
tiers[].acceptanceStatus

Use the linked skill and source to inspect route ownership and evidence classification before treating this presentation as an accepted implementation.

Owning skill: Sky, Atmosphere, and Haze
Published routes: 6 scenarios · 6 mechanisms · 3 quality tiers

Supported mechanisms

transmittance-and-multiscatter — Transmittance And Multiscatter
irradiance-and-sky-view — Irradiance And Sky View
aerial-perspective — Aerial Perspective
depth-and-ecef — Depth And Ecef
sun-moon-and-lighting — Sun Moon And Lighting
sea-level-to-orbit — Sea Level To Orbit