by Hammer Chen

Creating an image-based colored smoke is pretty straightforward with Phoenix FD. Here are three key steps you need to know:

1. Output RGB channel
Check RGB checkbox in the output section


2. PHXSource with RGB checked and plugged in your custom texture map


3. Simulator / Rendering 
The default smoke color is based on "constant color," choose Based on "RGB" so you can render out your colorful smoke.