ABANDONED (2026-10-12)

This wiki never got finished, the time investment was just too steep for the value compared to simply working on Keysight 2.

Just real quick though:

• Particles are a multitude of square surfaces with pathing calculated on the GPU
• Large numbers of large particles can be a performance disaster due to "overdraw"
• All particle templates are created via a single unified set of variables
• Editing particle systems is the most complex thing to do in Keysight, due to the emergent nature of pathing that is based on lots of different forces and velocities