Drive Switch_RGBA via Scatter objects

[lizGYM66]

I have a bunch of objects in an Arnold Scatter and was hoping to drive random colors/textures to them. I was hoping connecting a user_data_int to the switch_rgba_index would work but it doesn't. I've tried all the other user_data nodes with no success. 

Is this not possible or am I missing something?

[lee_griggs]

Do any of the videos at the bottom of the Arnold Scatter page help? 

[peter_horvath · Accepted solution]

No index user data is exported from Arnold Scatter. But you can use a color_jitter shader to generate a random color or index that you can feed into the switch shader.

Set the Input color to black and set the Object Gain Max to the number of colors/textures you have in the switch, minus a small number (for example 6 - 0.001 = 5.999).

[lizGYM66]

@lee_griggs I did look at those prior to posting but didn't see anything in them about what I was trying to do 🙂 

@peter_horvath I did try using a color jitter but not in that way. I'll give it a shot, thanks!