Blender UV scale practice / 2026-10-03

Blender 5.2.1 LTS background-engine tested. GUI operations not tested.
Open uv-scale-apply-reunwrap.blend in a disposable copy.
All planes have identical 3:1 world dimensions.
1: unapplied scale 3:1. UV is still a square.
2: scale applied. UV coordinates remain unchanged.
3: scale applied, then Angle Based unwrap. UV bounds have 3:1 proportions.
The checker node explicitly uses Texture Coordinate UV.
Compare the checker in Material Preview or render the existing camera.
To reset, extract the original ZIP in a new directory.
No external textures or embedded Python scripts.
Original practice scene created for CG Method.
