# WBV2-P12-004 status

- task: `WBV2-P12-004`; parent: `WBV2-P12-003`; status: `done`
- viewport: scene `scene:WBV2P2004ViewportScene`; readback pixels `1024`; resources disposed exact
- non-mesh: Curve + Point Cloud binary gates READY; Curve revision `1 -> 2`
- unknown data: BLOCKED; malformed Curve edit rejected without revision change
- save/reopen: `EXACT`; nextTask: `WBV2-P12-005`

Existing P2-004 viewport and P4-003 non-mesh source receipts are reused read-only. The production Chromium test binds nonblank viewport readback and bounded non-mesh capability/Curve mutation to the compiled WASM Main, with unsupported data remaining explicit.