workinf_Blender_Wasm/docs/status/M16-GAP-00201.md

M16-GAP-00201 Status

status: done task: anim.previewrange_set operator LOCAL_EXACT slice updated: 2026-08-22 America/New_York

scope:

• The minimal fixture uses the active Dope Sheet animation region and a deterministic border gesture to set the Scene preview range to 2..6 through ANIM_OT_previewrange_set.
• WASM/Main observes the same previewRange and frame bounds; no reader, protocol, or browser change was required.

evidence:

• Desktop evidence records the animation-region poll, FINISHED, PREVIEW_RANGE_SET, the 2..6 values, and exact save/reopen.
• WASM/Main compares the preview range from the same fixture, preserves it across save/reopen, and rejects malformed Blend input without Main mutation.
• Fixture generation, desktop checker, npm comparator, direct comparator, and task-context checks passed. Chromium-only policy was preserved; no Firefox/WebKit run was made.

nextTask: M16-GAP-00202