Thanks a lot Deviner! As this file is more technical than my knowledge
![](/static/djangobb_forum/img/smilies/wink.png)
I have some questions :
So here's what I understand from your scene:
- box1 : You start by a cube
- vdbfrompolygons1 : You convert it into a density fog VDB
- copy_for_3_fields : You duplicate it so now you have 3 densities
- name_to_Cd : You convert each densities into color information
- volumewrangle_your_stuff_here: you create a colored ramps and you apply it into the Color (Cd). To distribute the color, you use the vertical size of the original box.
Now as you can guess I want to use the heat instead of the vertical size of the box. From my Pyro_Import node, I could extract only the heat using a delete node. But my first question would be: how can I know the range of the heat? Does it go from 0 to 1, like the Cd color?
Cheers
David