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chaosink
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10 votes
4 answers
27k views

What is the difference between glossy and specular reflection?

8 votes
1 answer
3k views

What's the difference between geometric surface normal and shading surface normal?

4 votes
1 answer
838 views

Clipping for perspective projection

4 votes
1 answer
1k views

Energy conservation of BRDF

3 votes
1 answer
381 views

Phong BRDF in Mitsuba, Tungsten and AGI

3 votes
1 answer
1k views

Why the BRDF of specular reflection is infinite in the reflection direction?

3 votes
1 answer
137 views

The constructor of hyperboloid in pbrt-v3

2 votes
0 answers
597 views

What's the nature of Monte Carlo noise?

2 votes
1 answer
1k views

Power heuristic in multiple importance sampling

2 votes
3 answers
155 views

What's the meaning of the "dynamic" in "high dynamic range"?

2 votes
0 answers
316 views

How to merge multiple exr into a single multilayer exr?

1 vote
0 answers
170 views

An example of Combining Stratified Sampling and Importance Sampling in AGI

0 votes
0 answers
61 views

An equation about PDFs and differentials in the book of pbrt-v3

-1 votes
1 answer
58 views

Cloud simulation software [closed]