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Camera exposure control possible?

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Camera exposure control possible?

Unread postby armen » Sun Aug 04, 2013 8:11 am

I know Clarisse performs all calculations with 32-bit FP precision, but It would be really nice to be able to adjust camera item "exposure" when working with scenes that are of high dynamic range directly inside Clarisse.
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Re: Camera exposure control possible?

Unread postby isoyann » Mon Aug 05, 2013 11:43 am

Hi,

You can do it using the tone mapper inside the raytracer. For example, set the last point of the curve of the 3 channels (red, green, blue) to input : 5 output : 1 will divide all the color values by 5.. You can also simulate film and/or sensor response curve using this feature.
A second way to do this is to use a multiply filter on the 3d layer, set to the value you want (0.5 will divide the exposure by two, 2.0 will multiply it by two.. ).
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Re: Camera exposure control possible?

Unread postby armen » Mon Aug 05, 2013 4:25 pm

Awesome. Will try that, thank you.
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