Shutter Speed and Exposure

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Shutter Speed and Exposure

Postby Paolo Giandoso » Tue Jun 05, 2018 12:16 am

Paolo Giandoso Tue Jun 05, 2018 12:16 am
Hi all!
Thanks to the awesome Cam Calculator and Old School Exposure scripts in the Repository it is possible to recreate a convincing Physical Exposure situation.

I was wondering, since Shutter Speed is also a major component that influences exposure in Photography, if there is any script that allows to link the Shutter Speed from the Animation Node to the Exposure AND to calculate shutter speed in Seconds (like in a camera) more than in percentage of frame like it is now?
It could maybe be plugged in the "Exposure" parameter of the "Old School Exposure" and in the "shutter Time" parameter of the "Animation Setting" node influencing them both.

This way, using all 3 of the scripts in combo, Exposure would be influenced by ISO, FStops and also Shutter Speed and the simulation would be complete :) Ideally ISO should introduce noise/grain but that is not something possible in the Imager as of now.

Paolo Giandoso
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Re: Shutter Speed and Exposure

Postby bepeg4d » Tue Jun 05, 2018 7:55 am

bepeg4d Tue Jun 05, 2018 7:55 am
Hi Paolo,
interesting question, and glad to hear that you are enjoing with Cam Calculator and Old School Exposure scripts.
Unfortunately, I think that it cannot work, or at least not in the way you are expecting.
The Shatter speed in OctaneRender is not related with exposition, but with motion blur only, so you always need animated elements to take advantage of it. Otherwise the timeline is not created, and the Shutter speed parameter is not trigged.
ciao Beppe
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