# Progress — spec_miner_techart_3

Last visited: 2026-10-02T06:49:00Z

## Current Status
Investigation complete. Writing comprehensive handoff.md report detailing technical art specifications, normal map math, emissive mask rules, Metal shaders, JSON schemas, and exact client sync paths for all 21 DRQ asset packages.

## Completed Tasks
- [x] Examined existing tools in `tools/asset_pipeline/` (`normal_map_utils.py`, `m4_normal_utils.py`, `pbr_texture_synthesizer.py`, `design_pipeline_manager.py`).
- [x] Examined existing approved assets in `assets/approved/` and shaders in `client/assets/shaders/`.
- [x] Analyzed mathematical implementation and proof for Tangent-Space Sobel Normal Maps and the Blue channel mean >= 128 constraint.
- [x] Analyzed emissive mask generation rules, HSV gating, and alpha channel preservation.
- [x] Analyzed Apple Metal compute and PBR shader syntax, structures, and SIMD alignment requirements.
- [x] Extracted JSON metadata schema specifications and field conventions across atlas/UI types.
- [x] Parsed all 21 DRQs in `docs/design_requests/inbox/` (78 deliverables total: 47 albedo PNGs, 6 normal maps, 2 emissives, 3 metal shaders, 20 JSON metadata files).
- [x] Mapped all 78 deliverables to exact paths in `assets/approved/<DRQ-ID>/` and `client/webapp/assets/<subfolder>/`.
- [x] Checked disk inventory of all 78 deliverables (12 already on disk, 66 missing).
- [ ] Write `handoff.md` with complete 5-component report, Features Discovered table, and Edge Cases table.
- [ ] Send completion message to parent orchestrator_17.