Collision Detection Line Box Intersection Shows one possible to calculate linebox intersection. It can be used with mesh bounding boxes as a quicker initial test to speed up raymesh intersection tests.
Feet To Terrain Read about how to calculate the exact height of a point on a terrain of triangles created from a heightmap. Then there's an overview of how this can be used to adjust skeletal animations to keep the feet at terrain height.
Bounding Boxes Oriented bounding boxes are a common and useful bounding shape. Gives a data structure, and lists useful tests to perform on a bounding box. Includes complete sample source of an oriented bounding box class.
Skeletal Animation  Pixel&Vertex Shaders  Lighting & Shadows  Topic Overview  Sample Programs  Building Blocks  Math  About this Blog  Off Topic
