How to convert more than 3 channels (specifically 18 channels) when rasterizer to 3 channels color ?

[RyanPham19092002]

Hi, Thanks for your great work.
I have a question, when I build your submodel, I set up 18 NUM_CHANNELS
#define NUM_CHANNELS 18 // Default 3, RGB

After I rasterizer image, it has 18 channels, so I want to ask how I can convert it to RGB channels just with 3 channels color to render RGB images.

Thanks for your help.

[ysngfo]

i meet same need now，have you solve it,?thanks