set your max gamma out to 1
I have been doing this, but it seems to be different from what is recommended. I can set my MAX Out Gamma to 1, or VRAY Gamma to 1; both work. But, why am I not getting the results I need with the recommended settings?[quote=“Morne, username:Morne”]
set your max gamma out to 1
[/quote]
So, Dman, how did your test work out in the end using the linear workflow button as Svetlozar suggested and also loading in the adobe correction curves?
Hey Bobby hope you get that sorted, do not use the product myself.
@gunny263
I am working on some stuff with a little more tolerance for color but as soon as it is complete I am going back to focus on the subject to make sure everything
makes sense.
Im afraid work has interferred with getting everything sorted. At least with loading the adobe RGB into the VFB the colors look much more accurate when changing between
RGB to Adobe RGB, just by eye.
I think the main difference with using or not using the max gamma came down to the shadows being brighter if you use “dont affect colors” (with sRGB preview)
and either baking 2.2 in or 1 then 2.2 post etc. The colors right or wrong all seemed to remain in the same neigborhood if not identical.
Of course switching between color profiles will shift things but you can get away with converting to a profile in pshop rather than re-assigning it which will make
a visible shift. I need to go back and double check process and file type to see what is or what is not taking a default profile when opened in pshop in the color prefs.
to ensure that was not what started it all. It may have been knee jerk reaction to post this in the first place. I think I was not thinking too clearly that day
after a solid couple of weeks of grinding work. 
One thing I could not resolve and am at a loss to sort is the displacement test of making a gradient, linear or radial, bitmap and displacing and getting
a linear displacement. No matter what I did or how I made or saved the bitmaps it was not linear, ever. The only way I would get a linear response in the
displacement test was with a gradient ramp map. That whole thing indicates to me I am either doing something wrong, understand something wrong (or both)
or there is a bug or process issue somewhere. See post #8 on page 1.
Anyone else get that to work? Make a gradient bitmap and use that with a displace modifier and get a linear resulting displacement?
Update
I am still unable to match the VFB to the same image in photoshop no matter what I do or how I do it, with or without gamma
so I have no idea what is going on. Ive loaded the Adobe RGB 1998 ICC into the VRay VFB, saving with, without, float not float
with or without gamma what I render in max does not match when I open the same thing in photoshop.
With Adobe RGB 1998 assigned as default RGB profile. Im unsure which formats do not store a profile (if any) when you
save them from max, sort of getting the profile 2x when I open it in photoshop?
Also tried Svetlovars no max gamma method too with no luck.
I need someone to lay out a process for me so I can check my madness.
Maybe it’s Photoshop. Try installing CS6, with it’s defaults, and see if that solves it. Unless, of coarse, you re using CS6.
Did you install the disk that came with your monitor? Or did you at any stage do a Windows update and included a driver for your monitor?
(if you did, then that could be the source of your troubles)
To simplify things for a test, just stick to srgb and see if you get same results in VFB and photoshop. (and make sure no monitor profile is loaded in windows)
Hey Bobby already using cs6.
Hmm that makes sense morne, we use a calibrator so we all see approximately the same thing, I say approximate since we don’t use high end monitors and its a mix of brands/types. That leads to another problem of course.
If it works does that mean photoshop or max/vray ignores or is immune to any profiles used by windows?
Or I suppose that means its the vfb icc + monitor profile = wrong, for some reason never thought of that, amazingly dumb of me.
That being said, it appears, this is anecdotal, that the difference mainly shows up, or at least is visible to the eye
In warm colors, reds showing the most obvious problems.
So will test this in the morning and try to sort what it means for our workflow.
Bobby/Morne-
It looks like indeed the color profile from the i1 calibrator is the problem, as long as there is no profile selected they look the same,
but, it I use the adobe RGB 1998 icc in vfb and use adobe rgb 1998 in photoshop they look different
So srgb/srgb is the closest match. Will ,work with calibrating and using that calibration on both ends and see what that does.
So now, is it possible to calibrate and see the same result in both spaces, or is it possible? I guess I am off in my thinking of the profiles, their intent and what they do.
If not how can you calibrate to a monitor to 2.2 or whatever and know you are looking at at least the approximate same results.
and if anyone is keeping score
In photoshop
View->Proof setup (monitor RGB or sRGB)
View->Proof colors voila
but, its only visual and not baked into the resulting image.
Given more readings its a little more of a rats nest than I expected.
http://www.adobe.com/digitalimag/pdfs/phscs2ip\_colspace.pdf
And found this
http://www.chaosgroup.com/forums/vbulletin/showthread.php?68999-Color-Space-of-rendered-images
Ok update, hopefully my complete fit of stupidity is over
So, photoshop is where I was falling down and the worst part of this is I new this once upon a time.
Calibrate using Eye-one and pro calibrator 6500k @gamma 2.2 120 luminace (LCD)
Using VRay 1/1/2.2 (dont affect colors), Load ICC generated above
render saving EXR 1.0 gamma.
In photoshop assign the same calibration ICC as default RGB color profile
All is much more accurate, there still appears to be a differnce, a small one
which I guess is from photoshop converting, but even using no color management appears
to result in a slight difference. So focus is sort of back to the beginning to sort out how to get
the profile loaded in the VFB and the one in photoshop looking the same.
When client wants adobe RGB convert from monitor profile to adobe rgb 1998 profile not assign so
the conversion looks up the and assigns the correct colors from one to the other.
If any of this breaks will post it, now I know why no one from Chaos answered, trying to figure out how to respond without
making me look like more of an idiot 
---edit
Also just set windows to Adobe RGB, VRay VFB to Adobe RGB and Photoshop to Adobe RGB
and have a good match, of course, but the problem remains of hand off to someone else
for now inside that is also calibrated to the same target 6500k/2.2
Maybe back to what you said Morne about sRGB all the way then convert
Bah! I did a search before all this and still managed to miss this thread, clears up alot of it
http://www.chaosgroup.com/forums/vbulletin/showthread.php?66626-ICC-color-correction/page6&highlight=color+space
Hi All,
to keep the colours consistent between the vfb and photoshop you just need to assign the icc profile when you open the render in photoshop and then convert it to srgb to deliver to the client.
Regards,
Giacomo.