GPU Gems 2: Programming Techniques for High-Performance Graphics and General-Purpose Computation

Chapter 37. Octree Textures on the GPU

Sylvain LefebvreGRAVIR/IMAG – INRIA

Samuel HornusGRAVIR/IMAG – INRIA

Fabrice NeyretGRAVIR/IMAG – INRIA

Texture mapping is a very effective and efficient technique for enriching the appearance of polygonal models with details. Textures store not only color information, but also normals for bump mapping and various shading attributes to create appealing surface effects. However, texture mapping usually requires parameterizing a mesh by associating a 2D texture coordinate with every mesh vertex. Distortions and seams are often introduced by this difficult process, especially on complex meshes.

The 2D parameterization can be avoided by defining the texture inside a volume enclosing the object. Debry et al. (2002 ...