Xform3D is a software-based, lightweight 3D transformation library for U++, focused on providing essential matrix math and geometric tools for 3D graphics applications.
It includes a templated 4×4 matrix class and basic support for 3D point manipulation, with a design optimized for row-major, left-handed coordinate systems.

## Features

- Templated Matrix Class (`Matrix4_`):    A generic 4×4 matrix supporting translation, scaling, rotation (axis-aligned), perspective, and frustum projection.

- Row-Major Layout with Left-Handed Coordinates:** Matches typical 3D rendering setups for clarity and compatibility.

- Basic 3D Geometry (`Point3_`, `Point4_`): Simple 3D point/vector classes with support for `Null` value handling and homogeneous coordinates.

## Examples

|:-----------------|:---------------------------------------------------------------------------------|
| `Teapot3D`       |  Example code rendering the famous Utah teapot model, using Xform3D and Painter. |