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Mamdouh Fahmy avatar image
Mamdouh Fahmy asked ·

how can i output the Exr images & Aovs correctly

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Hey guys , am kinda stuck right now and i need your help ! am trying to export the AOVs in a single file using 3ds max arnold and open them using Exr-Io photoshop plugin , i attached pictures showing the settings am using and the export option , you see i end up getting washed images as exr i try to even gamma correct them manually it doesnt work , if u look at the second image " untitle-1.jpg "you can see there is barley any range in the levels at all , there is something wrong but i cant figure it out , so please help with this as i cant render my project before solving this issue , thanks .

renderaovs
test1.jpg (557.5 KiB)
untitle-1.jpg (481.8 KiB)
untitled2.jpg (78.0 KiB)
untitled3.jpg (215.6 KiB)
untitled4.jpg (55.0 KiB)
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Mike Samoylov avatar image
Mike Samoylov answered ·

Tonemapping (exposure parameters of Physical Camera) not supported in AOV. As @Nicola Jannuzzo said, AOVs saves as linear.

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Nicola Stefano Jannuzzo avatar image
Nicola Stefano Jannuzzo answered ·

EXR AOVs are output linearly by Arnold through OIIO, and are not affected by the Max output settings you are using for the beauty. It's diffucult to say what's going on in your case (tonamapping maybe ?), but if you add the RGBA AOV to your list, you will also see how your beauty looks in linear space.

If you want to send us the scene, we'll have a look.

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Beauty & sRGB pass were added and they showed the same results washed out image even through tonning in photoshop i cant get the right look , unless i convert the image to 16bit and play with the conversion settings but it also doesnt match the results of the rendered image , i tried viewing the image in Nuke same results , I ran out of ideas so what else could i check !

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I tried correcting it using image > adjustment > exposure , it works to some degree but i guess thats still isnt normal since i see people open images correctly from the start in photoshop or nuke right !

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