orthographic-registrationlisted

# Orthographic Registration This skill prevents the common failure where the front view looks plausible but the side/back/top views are wrong. ## Coordinate contract - Front view defines `X/Z` silhouette. - Side view defines `Y/Z` depth envelope. - Top view defines `X/Y` spread. - Back view defines rear silhouette/material only; it must not rewrite the front silhouette. ## Workflow 1. Run `scripts/register_views.py` on the available view images. 2. Create orthographic reference planes/image empties with a single shared scale. 3. Align centerline and bbox centers before modeling. 4. Lock front X/Z boundary vertices. 5. Add Y depth from side/top envelopes using modifiers/displacement or vertex groups. 6. Validate all four cameras before export. ## Failure policy If views disagree, front brand read wins. Document the conflict in `registration_report.json`. ## Front-plane rotation rule In this Blender coordinate convention, the front camera looks along the Y axis and the reference silhouette lives in the X/Z plane. Therefore 2D rotations inside the front view are rotations around the **Y axis**, not around Z. Use `rotation_euler = (0, angle, 0)` for 2D component orientation in the front projection. Z rotation spins objects into/out of screen-space incorrectly for X/Z-plane meshes. ## Sources distilled - Blender Image Empty/reference image controls for orthographic blueprints. - OpenCV homography/alignment and geometric transforms for view registration.