摘要：
为一个任意网格模型计算其切线空间的基本向量（即切线空间的T B N三个向量）
Modern bump mapping (also known as normal mapping) requires that tangent plane basis vectors be calculated for each vertex in a mesh. This article presents the theory behind the computation of per-vertex tangent spaces for an arbitrary triangle mesh and provides source code that implements the proper mathematics.
现在的bump mapping(或者normal mapping)需要每个顶点的切面的基本向量。这篇文章描述了逐顶点计算任意三角模型的切线空间原理，并且提供了实现这个数学理论的源代码。 阅读全文
