Stormz shows how to automatically find min and max particle age in Houdini, perfect for making particle trails.

One of the best ways to control the color of a particle over time is to use the particle’s age as a touchstone. While there are a few ways to do this in Side FX Houdini, it does get a little trickier the older the particle gets.

This new tutorial from Stormz goes over how to automatically find the minimum and maximum age of the particles in a simulation in Houdini 19 and render them using Redshift.