This series of videos is a primer on the new Smoke solver and sourcing tools in Houdini 12. It is relevant to both the Pyro and Smoke solvers.

These are detailed and intermediate videos. It is important to understand the basic concepts of Houdini, including volumes, before watching them.

In this second part we look at how to correctly source smoke from a moving object, and how to ensure object velocity is inherited. We also look at how to source smoke from a particle system.

Note that I refer to the 'divisions' of a volume, I am using the term to mean the same as voxels.

A project file is available from

Note: In general you only need to motion blur across a single frame in the fluid_source node rather than the three frames I use here. I've corrected the project file.

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