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rasputin

The physics of light interaction....?

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Hey guys,

I have a question,   and it concerns what happens when several C4D scene lights are shining on the same object.

What,  in 3D terminology,  is the word for how the several lights influence each other....    In terms of Brightness.     Is it  "Occlusion" ?    

What kind of mathematics is used when several lights interact?      I'm guessing it's a mathematical model of what happens in real-life?

Where can I learn more about 3D Lights...   in more detail?

Thanks,   ras

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In general lights do not interact. If multiple lights shine on a surface they just add up to the over all brightness.

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  • I see.   Sometimes Light B will completely bleach out Light A...  or seem to.

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    Light interacts additively. All of the different color wavelengths of light add up to white. If you're adding white lights together you are essentially increasing intensity/brightness.

     

    Of course, in 3D you can do things with lights that don't exist IRL, like negative lights.

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