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bflatasticandClaude Opus 5.5
f9570d783a
Scrubbing asks for the viewer frame under the pointer at every step. Each newer request only demoted the earlier ones to prefetch, so every frame the pointer passed was still rendered, oldest first, holding the frame threads the frame under the pointer needed. A newer viewer frame of a comp now drops that comp's viewer frames that haven't started (and releases them, so they can be asked for again). Frames already rendering finish into the cache (rendering can't be interrupted mid-frame), and the viewer keeps its last frame until the new one is in. Prefetch frames and other comps' viewer frames stay queued. Test: a_newer_viewer_frame_drops_the_ones_still_waiting (frames). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>