ColorMapping & Gamma Correction settings

[BrianKitts]

..... and the can of worms has been opened.... a thread was started today by "STORM" asking about gamma correction and rpcs, which got me starting this thread as to not cloud the other thread with a similar but seperate topic

 

I've been contemplating something since watching Chris Nichols' Global Illumination dvd about the gamma correction....Is the .453 settings something specific to his system settings based on the color profiles for his monitor vs. printing final image production. Or is it a number that we have to generate a profile based on our own systems for setting the gamma correction values.

 

Chris has a thread going here about monitor profiles. We've been starting to use profiles in our office... should that gamma correction value be based on a user specific profile, or is .453 a standard realworld setting. I haven't gotten through the DVD three times to fully digest it like I did for the exteriors dvd, but hopefully someone else has caught this or might be all the wiser to share.

[Gabriella_A]

Hallo to everyone...

 

The colorcorrection - gamma is a tricky question that is very well explained in chaos group forum (you have to be registered)...

 

In two words (hope to have understood well...)

In vray you have two ways of applying a correct linear space:

1) using colormapping gamma (dark 1 bright 0.454)

2) using vray virtual frame buffer and applying a correction curve

 

the 0.4545 is a number that comes from 1/gamma, that is for the most monitors 2.2, here comes that number...

 

Obiovously you need a well calibrated monitor... is the first step to the question.

 

I have to find links for the correct tutorials/tread...

The tutorial were very good but for me the question was finally made clear only in the chaos forums.

 

cheers,

Gabriella