gamma correction workflow?

#1

Hi,

Looking into a new workflow, I was wondering how people deal with gamma correction in their source material and compositing.

The latest 3D apps (e.g. XSI) can render without gamma correction, or better said render images with a gamma of 1. Advantage of this is that lighting etc. behaves more properly inside the 3D app, and renders look a lot better. also the Mental Ray renderer renders internally with gamma=1 anyway. There are some feautures to deal with the gamma of images when brought into the 3D app as well, so this is all peachy when working.

So what workflow would do think of when bringing in images with no gamma correction, mixing them with the basic sRGB images. And are there special nodes or scripts to add gamma, and colorcorrect in one go. Better know as tonemappers in 3d and photography.

Any tip, link or thought is very much welcome.

rob

#2

I like to keep it all linear anyway, so Im rendering from max linear and when I need to mix different colorspaces I always convert to lin.

Have a look at Fusion’s gamut node which can convert from different spaces, as for tonemappers Ive written a basic one for fusion (www.euqahuba.com) thats free.

Gringo wrote a great article on this here http://www.vfxpedia.com/index.php?title=Working_with_Gamma

Hope this helps!

-theo

#3

Hi Theo,

Yes, that definitely helps :slight_smile:
Great link and resource btw.

Nice work on your site, I loved those lemmings. Cracked me up when i saw those movies when they came out.
I will check out your Fusion tools, much appreciated.

Are you Dutch btw??

rob

#4

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