Setting up a 3 point light scenario

Forum|Forum|4 years ago
July 8, 2021
2 replies
692 views

Can someone help me understand how to set up a simple 3 light scenario?

I am using area lights for key fill and back(hair)

I am having a hard time interperting Exposure vs Intensity

Let's say I want a key light at 100% and Fill light at 50% for a 2:1 lighting ratio

Do I set both area lights to the same Exposure and then adjust the Intensity values?

Thanks

Question

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JMathews

Community Manager

Exposure is an exponential value so for a 'ratio' I would use the same exposure and just adjust intensity.
Keylight at exposure 1, intensity 100%
Fill light at exposure 1, intensity 50%

You can technically do it with EV too, but it's a little harder to figure out the ratios, since EV is exponential.

Adobe Principal Product Manager, 3D & Immersive

Jeremie Noguer

Community Manager

Yes, the exposure is an exponential intensity parameter, allowing you to have very faint lights and very bright ones like a sun. The intensity is a multiplier on that exposure.