Polar Scrubber

A local circular scrubber converts cursor angle into a precise timecode, with nested tracks, frame ticks and a readable nearest-angle snap.

• Product moments
• Spatial storytelling
• Interactive identity systems

• Local pointer angle maps deterministically to frame and timecode
• Snap marks and ghost frames communicate scrub direction
• Nested tracks remain readable at compact preview sizes
• A component-specific renderer and control contract—not a palette swap of another release
• Compact and full previews share one visibility-aware production renderer

Adaptive sampling, capped DPR and visibility-based suspension keep the renderer predictable. Test density on low-power mobile hardware before increasing it.

Pointer and touch coordinates are container-scoped; offscreen renderers stop work and pixel ratio is capped.

The visual canvas is decorative by default. Pair it with a semantic heading or description, and reduced motion holds a stable rendered frame.