Archive for December, 2007

Chunky triangle soup

There are many possible collision geometry representations. One representation is the triangle soup: an unordered collection of triangles. The triangle soup is great in the sense it is easy for artists and designers to create, edit, and apply collsion materials to the triangles. A not-so-great property is that the triangle soup does not define a volume, so there is no way to dinstinguish between being inside or outside of the objects it represents — we can only detect collisions with the boundary. It therefore becomes very important to detect tunneling to avoid objects falling through the world. Read the rest of this entry »