This technique is very handy, and you can use it for a lot of things like – Object placement, exporting instanced meshes to game engines, using particle emitters to emit geometry into rigid body simulations, etc.
- Bake to Instances or Meshes – Will bake the particles to unique geometry or instanced geometry. Instanced geometry mode saves a lot on memory.
- Start Frame / End Frame – The frame range the bake should consider.
- Bake Selected Particle Instancer Animation – Bakes the particle instancer in the range specified.
- Bake Particle Instancer to Objects – No Animation – Single frame bake mode. If you were to emit particles on the surface of a terrain for example, and wanted to just copy the geometry at a single frame, this would be the mode to use.