Tabbed channels for Luminance, Color, and Motion. The floating input menu (Channel 5) lets you load your own MP4/MKV/JPG into the active player without uploading to a server.
4×4 grid alternating #000 and #FFF to stress backlight zones.
Ramp from RGB 0→16 to reveal crushed detail; view in a dark room.
Smooth CSS/Canvas gradients across 100% width to expose 8-bit banding.
Use these embeds as presets; swap with local masters when available.
requestAnimationFrame driven UFO clone with adjustable velocity; FPS uses performance.now() deltas. Grid toggle overlays a 10×10 magenta/cyan checker for overscan.
Loads curated IDs for motion/HDR stress (judder & Starfield). Telemetry mirrors “Stats for Nerds” via the IFrame API.
Run the tabs in order: Motion → HDR/SDR toggle → Banding. Hotkeys 1–9 jump to any Channel.
| Step | What to play | What to look for |
|---|---|---|
| 1 · Motion | UFO canvas at 1920 px/s + SDR Judder YouTube | Judder vs. smooth, blur trails, frame drops (watch FPS counter) |
| 2 · HDR vs. SDR | HDR Stress clip vs. SDR Judder clip | Highlight clipping, tone mapping roll-off, crushed blacks |
| 3 · Color/Banding | R/G/B gradients + near-black ramp | Banding steps, color neutrality, detail in shadows |