threejs-core-math
Installation
SKILL.md
threejs-core-math
Quick Reference
Coordinate System
Three.js uses a right-handed coordinate system with Y-up:
| Axis | Direction | Notes |
|---|---|---|
| X | Right | Positive toward screen right |
| Y | Up | Positive toward ceiling |
| Z | Toward viewer | Positive out of the screen |
Import conversion rules: