Three.js Math Utilities Discussion

Based on the information available in the Three.js documentation, I can provide some insights about the current math utilities available in Three.js.

Three.js already offers a comprehensive set of mathematical classes for 3D graphics programming, including:

• Vector classes (Vector2, Vector3, Vector4)
• Matrix classes (Matrix2, Matrix3, Matrix4)
• Quaternion for rotations
• Euler angles
• Various geometric primitives (Box2, Box3, Sphere, Triangle, etc.)
• Color manipulation
• Interpolation utilities

Regarding your specific questions about desired math operations, I can only speak to what's currently documented in Three.js. The features you're asking about (coordinate system flexibility, additional quaternion functions, and more interpolation methods) would indeed be useful extensions to the current functionality.

For coordinate system handling, Three.js uses a right-handed coordinate system by default, but doesn't appear to have built-in utilities specifically for converting between different coordinate systems with configurable up/down/forward axes.

The current math utilities in Three.js are quite robust, but your suggestions for additional functionality would certainly enhance the library's capabilities, especially for users working with assets from different 3D software packages that use different coordinate conventions.

If you're looking to implement these features, you might need to create custom utility functions that build upon the existing Three.js math classes to handle these specific use cases.

For more detailed information about the current capabilities of each math class, I'd recommend exploring the specific documentation pages for each class listed in the Math section of the Three.js documentation.