So, OK, so apart from that, I claim now we can find the position of its moving point Q0Q1 because, well, this vector, Q0Q1 we can find from the coordinatesof Q0 and Q1.
不管那些了,我断言我们可以找出移动点的位置了,因为对于向量1,我们可以找出Q0和Q1的坐标。
2
Nor: Uses the direction of the normal vector as coordinates. This is very useful when creating certain special effects (see below).
法向: 使用法向量的方向作为坐标。这在创建某些特效时非常有用(见下文)。
3
Refl: Uses the direction of the reflection vector as coordinates. You will need this input when Environment Mapping.