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teracore
10-17-2012, 05:11 PM
Hey guys, new comer here. :bounce:

I am a 3d Max user and love working with it.
But I wanna know which Vray gamma correction setting is correct.

1st one:

http://i.imgur.com/BF58L.jpg



2nd one:

http://i.imgur.com/VCo5J.jpg




I always use the first one where both the input gamma and output gamma are set to 2.2. I also set it to 2.2 in color mapping. The final render looks great with it even though colors are more saturated than the 2nd one.

Thank you!

AJ
10-18-2012, 03:27 PM
It's actually a mix of both.

Have your gamma settings set as they are in the second image but turn on 'don't affect colors' in Color Mapping. Then just make sure you have the 'Display colours in sRGB space' button checked in the VFB.

Hope that helps!

teracore
10-18-2012, 04:48 PM
Thanks for replying.

But I get darker image when using the method 2(output gamma 1.0 and don't affect colors(adaptation only) is enabled. I don't get darker render when don't affect colors is turned off.

Images:

When output gamma is 1.0 and don't affect colors is enabled->

http://i.imgur.com/ZYNRS.jpg



When output gamma is 2.2 and don't affect colors is enabled here too->

http://i.imgur.com/8VW4a.jpg

DaveWortley
10-18-2012, 05:39 PM
It's actually a mix of both.

Have your gamma settings set as they are in the second image but turn on 'don't affect colors' in Color Mapping. Then just make sure you have the 'Display colours in sRGB space' button checked in the VFB.

Hope that helps!

If you do this then it's important to render to a floating point image file such as EXR so you can apply the sRGB correction to your images.

AJ
10-19-2012, 12:05 PM
If you do this then it's important to render to a floating point image file such as EXR so you can apply the sRGB correction to your images.Damn - I totally thought I'd written that!

What Dave says :)

teracore
10-19-2012, 02:35 PM
So all I have to do is save image as .exr in 3d Max and then open it in photoshop and save it as .jpeg or png ? right?

I just rendered using this method and I got a little darker image(still better than image 2).

http://i.imgur.com/kcI9m.jpg

^I did save it as .exr and converted it to jpeg in photoshop.


Image 2(the settings i always use):

http://i.imgur.com/nxjlA.jpg


View images in fullscreen to see the difference. ;)

3DMadness
10-19-2012, 09:36 PM
If you just need the jpg or png you can output it as 2.2.

ebee
10-22-2012, 11:49 AM
Here's a great guide to the subject: http://www.davidfleet.com/tutorials/linear-workflow

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10-22-2012, 11:49 AM
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