[3dsMax] Vray color mapping in linear workflow

[bullfrog]

Hi fellows !

Last thing I don't get with linear workflow is that we can read that we have to thick on the "don't affect color" button to make it active and set the gamma value to 2.2.

But, we can also read that we have to chose a color mapping type like Linear,HSV, Exponential,.... it depends on our taste and the look of the final image we want to get.

BUT

color mapping types don't change nothing if "don't affect color" is thick on. Only it changes something in the aliasing.

To see a difference I have to set my Gamma in 1.0 et thick off the "don't affect color button"

So where is the true?

[vlado]

The above is valid only for V-Ray versions before V-Ray 2.4. In V-Ray 2.4, the "don't affect colors" checkbox is replaced with a drop-down, that allows you to choose more specifically what you want to happen - whether you want to burn both the gamma and color mapping into the image; only the color mapping without the gamma; or nothing. Starting from V-Ray 2.4, the default values more or less work as expected.

Best regards,
Vlado

[bullfrog]

I have the lastest verison of Vray which you're talking about.


Let say I want to see an HSV exponential type of color mapping to reduce the overbright areas in my interior lighting :

None : doesn't change anything

Color mapping only : doesn't change anything (in the lighting as far as I can see I think it's doing something for the aliasing and noise)

color mapping and gamma : HSV works finally and I can set the gamma to 1.0 to avoid the gamma to be burnt in.


So my questions:

1- Why the color mapping types don't work when the mode is on "Color mapping only" ??

2-Am I still doing linear workflow if I set : "color mapping and gamma" mode / gamma 1.0 / Type of color mapping different than linear multiply / saving my passes in 1.0 ??

[vlado]

It would be best if you can post a scene. For me, the "color mapping only" mode works correctly.

Best regards,
Vlado