Combining Primary Colors?

Is there an easy way to combined primary colors?

I want to update the color value of an object based on the last color value to touch it and it's own value.

For example, if the object is blue and it gets touched by something that is yellow, I want it to turn green.

 

So I've been playing around with this more and can't find any automatic way of doing it. Have read up on some shader stuff, but nothing that I understand currently

I guess for now I'll manually do it through a loop of ifs, unless anyone has any suggestions?

 

http://docs.unity3d.com/ScriptReference/Color.html

You can add colors together by simply using the '+' operator

ex. -
var blendedColors = Color.blue + Color.red;

 

Sadly that does not work

For example, Color.yellow + Color.blue just gives a slightly off white, not green.

 

Yellow + blue = green only works for RYB subtractive color; computers use RGB additive color, where R + G + B = white.

--Eric

 

Understood.

Given that, is there any easy way using RGB to get similar results?

 

How many colors do you have? If it's just primary colors, I think a few if/then statements would make more sense than implementing a RYB subtractive color model.

--Eric

 

True. I don't expect that it will be a lot of color combinations (maybe 10-15?).

Thanks!