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（1）lerp(a, b, w) = b*w + a*(1.0-w)（2）反射向量R=L-2(N·L)*N L入射向量 N法向量 R反射向量由于这几个向量都是单位向量，长度为1.所有构成菱形。菱形对角线相互垂直切平分。我们很容易看出R-L的结果(R加上-L(绿色的那根))与N是共线的(同方向)，而且... 阅读全文
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Where Does the Vertex Data Come from?where does the vertex shader get its data from? Within Unity, the answer is that the Mesh Renderer component of a game object sends all the data of the mesh of the game object to OpenGL in each frame. (This is often called a “draw call”. Note that each draw call 阅读全文
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http://blog.csdn.net/android_tutor/article/details/7015986 阅读全文