white balance in rendering

[batteryoperatedlettuce]

With my digital camera (or any slr for that matter) I can point it at a 50% grey thing and use it to set the white balance and offest the color and tone etc. I'm just wondering if it's possible to do anything similar with the vray physical camera. I've been reading through the manual etc and seen many other things which resemble physical camera effects.

 

It seems to me it would be pretty cool if you could select an object in your rendering and just tell the machine, "when this renders - it has to be 50% grey, please ofset everything else accordingly"

[kippu]

there is a white balance option in the vray physical cam and it does exactly that

[batteryoperatedlettuce]

awesome! Seems I just haven't read that far yet.

[BrianKitts]

nice trick I saw in a tutorial for using the white balance is to place a white box in the center of your scene. do a quick render on it, then right click in the frame buffer on the white surface to get the RGB value of what "should" be white. Then input that RGB into the white balance swatch of the vrayCam. worked pretty well as a starting point then I tweak it a bit from there based on personal preference.

 

(I'd post the tut and give credit.... but I can't remember where it was or who wrote it....sorry)

[Crazy Homeless Guy]

...also, Lele is testing out a auto white space correction in his auto exposure plug-in. it is still in development, so it may not work perfectly. ..or even give decent looking results.

 

http://www.scriptspot.com/3ds-max/leles-vray-tools

[batteryoperatedlettuce]

nice trick I saw in a tutorial for using the white balance is to place a white box in the center of your scene. do a quick render on it, then right click in the frame buffer on the white surface to get the RGB value of what "should" be white

 

That sounds pretty rational. I will give it a try! Thank you.