Lecture 05: 渲染中光和材质的数学魔法

\[ L_{O}(\vec{x}, \vec{\omega_{o}}) = L_{e}(\vec{x}, \vec{\omega_{e}}) + \int_{H^2} f_{r}(\vec{x}, \vec{\omega_{o}}, \vec{\omega_{i}})L_{i}(\vec{x}, \vec{\omega_{i}})\cos \theta_{i} d\vec{\omega_{i}} \]

Three challenge:

• How to get incoming radiance for any given incoming direction
• Integral of lighting and scatting function on hemisphere is expensive
• To evaluate incoming radiance, we have to compute yet another integral

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最后更新: 2022年4月27日 15:29:45
创建日期: 2022年4月22日 15:02:30

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