Houdini Pyro

Sourcing

For smoke only - source only “density” attribute

For the smoke to rise - source “temperature” attribute

To create flames - source “burn” attribute

Add noise for a more realistic sourcing ;

set the attributes from the pyro source

set the signature either 1D or 3D

Check Animated

Remap noise between 0 and 1 ( for stronger contrast remap it to -1 and 1 )

Change the element size to be smaller ( eg. 0.2 )

this node is to rasterize into volumes all the attributes made by the pyro source node