Resume interrupted pipelines and optimize low-VRAM reconstruction

[Rhys-liuliu]

Summary

• persist durable pipeline checkpoints and resume interrupted or cancelled projects without repeating completed stages
• replace percentage-based extraction with bounded, quality-aware frame budgets
• try COLMAP Global Mapper first and automatically fall back to incremental mapping when unavailable or below the registration threshold
• detect NVIDIA VRAM and apply conservative Brush resolution, splat-count, iteration, and SH budgets
• retry Brush once with a reduced memory profile after common WebGPU out-of-memory failures
• display detected VRAM in the acceleration status

Validation

• cargo test --manifest-path src-tauri/Cargo.toml (72 passed)
• npm test -- --run (49 passed)
• npm run build
• cargo clippy --manifest-path src-tauri/Cargo.toml --all-targets -- -D warnings
• built Windows NSIS installer successfully
• verified the bundled COLMAP global_mapper against a 226-frame RTX 5060 Laptop GPU project; bundled Ceres transparently falls back to CPU for BA

Observed impact

For the existing 12.5-second 60 FPS sample, the Fast frame plan drops from 226 extracted frames to 48. The previous run spent 11m42s in incremental mapping, so frame bounding plus the global-first path targets the dominant pipeline cost while preserving a quality-checked fallback.

Generation-time estimate

• predicts total runtime from video resolution, bounded frame plan, quality preset, detected VRAM, and completed local runs
• reports a conservative lower/upper range and confidence based on calibration sample count
• continuously blends the initial estimate with observed pipeline progress to update remaining time

Multi-orbit pose correction

• replace sequential-only matching with exhaustive cross-view matching for the bounded 48–400 frame workload
• enable COLMAP guided matching so geometrically verified cross-lap correspondences constrain camera poses
• invalidate legacy matching checkpoints while preserving extracted features
• validated with 74 Rust library tests and a production frontend build