Color mapping

[arobbert]

Where can I find an explanation of the color mapping function. I can't find it in the documentation.

[dejaVu]

I wrote 2 tutorials a while back on VRay that included color mapping.
Might want to check them out.
http://www.osmosis.com.au/info/tutorials.htm

[Brim]

Vu - thx for wrinting these tuts. I've learned a lot from them - and nice model btw.

xavier

[egz]

From the What's new HTML file for 1.08.04p:

NOTE on color correction:

There is a new group of parameters in the G-Buffer rollout; these control how the color values are processed before they are written to the output buffer. Color correction can be very useful for indoor or poorly lit scenes - you can get a good image without increasing light and sky multipliers.

Type - the type of color correction. Currently the only supported type is Linear multiply which will simply multiply the colors by a value based on their intensity.
Dark mutliplier - the value that dark colors will be multiplied by. For indoor or poorly lit scenes, you may want to increase this value to get more light in dark areas.
Light multiplier - the value that bright colors will be multiplied by. Normally you'd leave this to its default value of 1.0 which means that bright colors will not be altered.


Then this was added in 1.09.02q:
(*) Added "Exponential" color mapping mode. You can select this instead of the default "Linear mapping". The exponential mode is targeted at preventing burn-outs caused by very bright colors. The meaning of the Dark and Bright multipliers is slightly altered in this mode. The Dark multiplier can again be used to make the image darker/brighter. The Bright multiplier is not very meaningful at this point and you should leave it to 1.0.

[arobbert]

Thanks

Thank you for the tips everyone!