This setup ignites a smoke sim at one point and let the fire spread across the whole mesh.

This setup ignites a smoke sim at one point and let the fire spread across the whole mesh.
A set of node to randomly delete particles in order to reduce the particle count.
This setup splits particles by particle-id and let only one stream collide with geometry.
A set of attrib-set nodes to create a procedural sphere from a grid. The nodes can be copy-pasted into other scenes.
A set of attrib-set nodes to create a procedural torus from a grid. The nodes can be copy-pasted into other scenes.
A collection of attrib-set nodes to create circles and spirals. The nodes can be copy-pasted into other scenes.