Color Correct or Vray Color

V-Ray V-Ray for 3ds Max Issues
1

So…when making a material…Does one still make the main mat a VRAYMAT…then choose VrayColor in the Diffuse…Or do I put color correct in the diffuse…Should I let the diffuse run my life it’s see fit? And why does shampoo come in flavors? These are the things that trouble me… :slight_smile:

Thanx

2

This concerns working in LWF:

(*) If you use VRayColor as a diffuse map, you can specify your color and the gamma. No need of CC. (Example: Middle Gray (0.5,0.5,0.5) Gamma 2.2)

(*) If you don’t use those, there are 2 options:
Option 1: You have to use CC to correct your color.

Option 2: You have to manually calculate the color (make it darker) in order to appear ok after Gamma 2.2 is applied:

Example for calculating colors:
If you want a diffuse color of Gray (200,200,200) picked in the frames buffer with applied Gamma 2.2 - you have to set the color to 149.

(*) 200 div 255 = 0.784
(*) 0.784 ^ 2.2 = 0.585457
(*) 0.585457 * 255 = 149.292

3

thanx nikki,

I was just searching for that formula in order to remove CC plugin from my workflow …while waiting for RC4 vraycolor gamma checkbox, I mean. :wink:

…only a couple of dumb question:

1. just to be sure, does that formula work the same way for every color channel, isn’t it?

2. is it correct that every value below 15 returns 0 ? is it sameway related with the no-float value of max colors?

10x

a.

4

third, i created a script a while back for PAul Oblomov’s mate, that does color gammaing at 2.2.
http://www.scriptspot.com/lele/gamma\_color\_corrector.ms

Have phun.
(my pref is to use the vray colour. only a madman would part from float colour definition, imho)

Lele

5

Heh, I was wondering if I remembered you writing one, I saw nikki’s equations and started writing a script to do it, it was fun learning how the value related to rgb anyways. :smile:

6

Eheh, it just goes to show how much time i’ve got on my hands, hey :stuck_out_tongue:
I’m edging back into my running, however, and hopefully racing again sometimes this year.
That alone is burning up a good three hours per evening, and making me go to sleep fast and sound a LOT earlier each night…
Should even the odds with your karting :wink:

Lele

7

so you cant use vray color’s rgb multiplier value to get it to 2.2?

if you set it to .8 wouldnt that be the same?