Synthetic Lighting for Photography

This is a technique that’ll make your photos that little bit more extra-ordinary!

By Donncha

Donncha Ó Caoimh is a software developer at Automattic and WordPress plugin developer. He posts photos at In Photos and can also be found on Twitter.

3 replies on “Synthetic Lighting for Photography”

As it mentions at the end of the article, this technique can be used in artificial rendering (such as raytracing), as well. I’ve seen some impressive examples used to fake prismatic refraction (which is what gives diamonds their particular “sparkle”, for instance). You render three times, once with just red lights, then with just green, then with just blue. For each render, you alter the IOR (index of refraction) of the diamond object. Then you combine the three channels into a single image, which will then contain a reasonable facsimilethe rainbow effects that regular raytracing can’t reproduce without a lot of added complexity.

I wish I had a link to an example….

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