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Radiometry, optics, electromagnetic waves are very large topics. I've read many books and articles wanting to talk about them, but which was doing it very badly. I guess that, for lighting computer graphics, focusing on the base principles is enough.

Talking about radiometry with forgetting about photometry is a good example about how large they are and how easy it is to omit some important things :)

I guess you should focus on what is radiance and irradiance since most PBR articles will talk about them.

Take it only as my two cents opinion.

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Hi, _Silence_

First of all, thanks for all your suggestions. I totally agree with you.

To avoid a very long post, I did not include radiometric units. I knew this was going to be an important omission, so I commented about this situation at the beginning and at the end of the article (and in Lighting Series main post). I plan to include photometry-radiometry comparison in the next post too.

Thanks again!

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So we are refreshing physics theory from the high school ;)

Anyway I think it's nice introduction but..

11 minutes ago, _Silence_ said:

I guess that, for lighting computer graphics, focusing on the base principles is enough.

..it would be just easier to describe L, V, N vectors, dot(N, L), etc. I assume this would go in the next post.

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