Multiview Constraint Solver

Multiview Constraint Solver

Use this before another rebuild when references disagree. A renderer cannot make one rigid mesh satisfy mutually incompatible orthographic dimensions unless you allow view-specific cheats.

Workflow

1. Normalize every reference view into a common axis contract:
   • front: width X, height Z;
   • side: depth Y, height Z;
   • top: width X, depth Y;
   • back: width X, height Z.
2. Measure visible body bboxes, not labels/background/aura unless they are part of the model contract.
3. Compare shared axes:
   • front width vs top width;
   • front/back height vs side height;
   • side depth vs top depth.
4. If ratios differ beyond tolerance, write a conflict report and select a policy:
   • front_side_canonical: front brand read and side depth/height are authoritative;
   • front_top_canonical: front brand read and top footprint are authoritative;
   • corrected_templates_required: no rigid rebuild should claim final fit;
   • view_specific_cheats: separate camera/view variants allowed, not one rigid asset.
5. Feed the chosen policy into fit-repair-optimizer before any geometry, UV, or lighting work.

Hard gates

• Do not restart modeling until canonical policy exists.
• Do not treat top-view aura/context as body depth.
• Do not average contradictory dimensions unless the user explicitly asks for an approximate stylized compromise.
• Record part-count disagreements separately from bbox disagreements.

Script

• scripts/view_constraint_report.py reads a JSON file of per-view body bboxes and emits shared-axis compatibility and a suggested canonical policy.