Refl: Uses the direction of the reflection vector as coordinates. You will need this input when EnvironmentMapping.
反射: 使用反射向量的方向作为坐标。环境映射需要这种输入。
2
The approach starts from an analysis of spherical harmonics and finds out a quadratic polynomial form of environmentmapping.
该方法从分析球面调和函数入手,首先得出环境贴图的二次多项式表达形式;
3
Aim to introduce the basic concepts of environmentmapping in D3D, and detailedly discuss the process of using D3D to realize cubic and spherical environmentmapping.