How to use Color Mapping feature?

[Harutium]

Can anybody explain to me when & how to use the 3 different kind of Color Mapping, please(Linear/Exp./HSV)?
Thank you

[tammo]

-use linear mapping for perfect automatic lighting.

-use exponential mapping on fridays.

-hsv can be used in addition to speedup rendering times 230%.


for more info use "search button"

[cocolas]

- linear mapping won't add any filtering to your image....no light filtering that is

- HSV esponential will filter/reduce the bright areas of your image trying to help avoiding burnouts from overlighting....this way you can have more intense light w/ out blowing out parts of your scene...however it messes w/ your saturation...tends to desaturate the general image...

-exponential...haven't messed much w/ this one, but it does a similar thing to the HSV but w/ out the desaturation part.....actually sometimes the colors look more vivid whe using this one....

....I'm sure there is a lot of good past topics on this on this forum....as well as www.vray.info ....

paul.