Tootle (Triangle Order Optimization Tool) is a mesh optimization library that improves on existing mesh preprocessing techniques. By using Tootle, developers can optimize their models for pixel overdraw as well as vertex cache performance. This can provide significant performance improvements in pixel limited situations, with no penalty in vertex-limited scenarios, and no runtime cost.
Triangle Order Optimization for graphics hardware computation culling. In Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, pages 207-211