Canonical Lab · Three.js 0.185.1

WebGPU Exposure Color Pipeline

Interactive Three.js WebGPU/TSL demo for WebGPU Exposure Color Pipeline, with 5 scenarios, 6 mechanisms, and 3 quality tiers and evidence-gated validation.

Evidence status: Accepted runtime evidence is available for the published contract represented by this demo.

Readiness & remaining fixes 2

Declared evidence work remains. Overall implementation status does not establish individual runtime or performance claims.

1. P0Define and measure the target performance contract

   The full-histogram, balanced-log-reduction, minimum-fixed-shot 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
2. P0Current Adapter Timing runtime proof

   No named-adapter timestamp capture accepted; performance remains INSUFFICIENT_EVIDENCE.

   runtimeProof.current-adapter-timing

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

Owning skill

Exposure And Color Grading

Published routes

5 scenarios · 6 mechanisms · 3 quality tiers

Supported mechanisms

• log-luminance-reduction — Log Luminance Reduction
• histogram-and-percentiles — Histogram And Percentiles
• adaptation — Adaptation
• metering-masks — Metering Masks
• tone-mapping — Tone Mapping
• lut-grading — Lut Grading