Computer Graphics Part 10 (Environment Mapping & Mirroring)
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List three types of environment mapping
- cubic mapping
- sphere mapping
- refractive mapping
List 3 types of mirroring techniques
- reflection first
- stencil buffer
- reflection last
Explain the cubic mapping procedure (4 steps)
Calculating the reflection vector
R = 2 N (N.I)-I
how do you know which face to use?
how do you konw which texture coordinates to use?
How do you index a sphere map?
What would you like to do?
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