ジオメトリクラスです。
| CalculateBounds | Calculates the bounding box from the given array of positions and the transformation matrix. |
| CalculateFrustumPlanes | 錐台平面を計算します |
| TestPlanesAABB | plane 配列内にバウンズがある場合は、true をします |
| TryCreatePlaneFromPolygon | Creates a plane from a given list of vertices. Works for concave polygons and polygons that have multiple aligned vertices. |