Images saves less saturated than what is displayed in VFB

Hi all

I’m having a problem saving my images and I’m not sure if it is related to VRAY. I’m not using gamma (default max) and I’m using standard cam. When cloning the VFB, the max FB and VFB looks the same, but when I save from either in any format (tried jpg and tga). Open the images in windows or in photoshop… it has less saturation and seems faded… anybody know whats up?

Regards,
Morne

Someone along the way applies some color correction to your image; I’m pretty sure Photoshop does; what program are you using to view the file outside of Photoshop?

Best regards,
Vlado

just the standard windows viewer, image and fax viewer I think. But it just started doing this now on my latests project. Before it was fine

Maybe you have changed the “Output gamma” setting of 3ds Max?

Best regards,
Vlado

Perhaps my thread (http://www.chaosgroup.com/forums/vbulletin/showthread.php?t=40528) would help out as it’s kind of similar. I’m not 100% sure what I’m doing is totally accurate but I’m very satisfied with the results of Photoshop matching the VFB. I know that is is changing pure pixel values when I operate this way but visually it does match pretty well. The only time I don’t use the monitor profile is for Multimatte render elements which need to be pure red, green, or blue - in which case I just open them “as is/no color management”.

no its all default (so switched off and cant select it 1.0)

I did start the project with LWF but halfway changed to normal cam and switched off gamma. Now I’m using HSV Exponential color mapping with gamma of 1.0. Dark mulitplier 1.8 and bright on 1.3.

This is driving me nuts!

Does it happen on another machine with the same scene? Can you email me a rendered image to vlado@chaosgroup.com and a snapshot of the VFB inside 3ds Max?

Best regards,
Vlado

I haven’t tried it another machine yet and wont be able to before the deadline…

hmmm but doing a screen grab by prtscn and pasting it into photoshop also results in same issue as when saving. So either my max is confused or my photoshop is confused. I’m geussing max is somehow confused as I dont even know where to change color profiles in photoshop so I doubt it is photoshop.
Its asif max somehow remembers I was using lwf but then when I switched to old way it kept the lwf settings or somehting like that. Any thoughts?

ok I tried it also on another pc. same story. Only thing I can now think of is that it has something to do with my Vray settings in my scene. Any thoughts?

Paste it into good old Paint, not Photoshop :slight_smile:

Other than that, maybe you did some color corrections in the V-Ray VFB? Or you have the sRGB button pressed there?

Best regards,
Vlado

no way!!! If I paste it into paint it is perfect how it is suppose to be. Now I’m really confused

but then when I save it and open in any other program it is wrong again.

if I i9nsert it into powerpoint the colour is correct. Hmmm why does windows image and fax viewer AND photoshop then display it wrong?
:(:rage:

Sounds to me like a profile issue…

I’m 99% certain windows picture fax viewer respects ICC profiles.

ICC profiles?

What do you mean by that?
So then what is wrong here?

ok I found where to change it in photoshop
If I select my current default monitor (Samsung) profile in photoshop instead of sRGB profile, then it shows correctly, bu still shows wrong in windows picture viewer. So then should I set in my graphics settings to show sRGB profile instead of my Samsung screen profile?
(I never had issues before, not sure why I do now)

also without playing with profiles, it shows correctly if I bring it into powerpoint
now what?

ok so I thought I would be clever by deleting my monitor profile. It didnt do anything. Even after selecting sRGB as the monitor profile in windows, max and photoshop still behaves differently

I need some help please. Seems this is long gone not Vray anymore, so could this thread please be moved to off-topic by somebody who can.

Color profiles in Windows and PS can get very messy, just wait and buy Francesco’s book, he covers color pipeline stuff very thoroughly. :smile:

If you are using windows vista go to to search bar on start and search for ICC or
color management… xp has that too. Just makes sure you don’t apply any color profile
as 3dsmax seems not to be bothered by those. But the rest of the microsoft software does.

Color management when understood throughly takes alot of effort. Real color management
requires controlled environment and lights. Windows lights are bad and the room must
be painted in a neutral tone. Measuring instrument are used like the spectrometer…
viewing angles are critical and screens that are specificially design for color correct are
really expensive, some have color measuring devices attached to it.

So color management isn’t just easy as ‘abc’, so I skipped that and use my eye most of
the time as my work didn’t need that level of accuracy. But with that said it’s definitely essential
that what’s coming out of max looks the same on the same machine … on a different piece of
software.

It’s highly advice as a color profile mismatch for your case. Best of luck.