OTOY Forums

Hi all,

Beppe asked yesterday how to calculate the exposure using some EV compensation like in a real camera. So I wrote a small Lua script graph. In case somebody finds it useful, you can get it here: Again, just import the package and connect it with the exposure pin of the camera imager node: Happy rendering,
Marcus

big thanks Marcus, you are a genius
it works very well
the ability to save the scripted graph nodes in the LocalDB is fantastic, drag and drop and go, simply great
ciao beppe

abstrax wrote:Hi all,

Beppe asked yesterday how to calculate the exposure using some EV compensation like in a real camera. So I wrote a small Lua script graph. In case somebody finds it useful, you can get it here:

Again, just import the package and connect it with the exposure pin of the camera imager node:


Happy rendering,
Marcus

Very useful indeed. Thank you a lot for providing this option!

Since I am used to EV steps from photography fine tuning the exposure that way is very conveniant.
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Side note:

Since some people miss the old school exposure settings for reasons that are totally beyond me,

Update/Edit:
I tried an explanation but removed it again to save you a long read that will just end up adding more confusion.

The short version may be:
Three slider yielded the illusion of more subtle control.

- - -

In any way the EV compensation script now offers a very useful way to finetune scenes.

Selecting "brigher" or "darker" to fine tune the brightness further in the needed direction is a much more intuitive option than trying random combinations of three sliders that in hindsight all seemed to be doing the same thing.