14 March 2014

Three Particle Effects

For some time I have been playing around with my particle system. It seems to be a very interesting experiment to do! Today I just want to present some of current results and thoughts on future development.
So far I managed to create three different effects:
  • star tunnel: just round position generator + position update
  • attractors: four attractors that affect acceleration of each particle
  • fountain: simple collision detection with a floor
Let us see some of the results...

The Series

Screens

Particle system

Particle system

Particle system

Particle system with AntTweakBar

Fountain particle system

Particle tunnel with AntTweakBar

Particle tunnel

Movie

Plans

  • Create more effects! This will make my system more reusable. I often see particle tutorials that are very simple and cannot be easily extended. My idea is to have decent amount of flexibility.
  • Optimize!
    • I have rough numbers about the system: 250k particles (in the attractor effect) take around 13ms to calculate (on CPU). Fps drops to 30fps.
    • It would be nice to create a million particle system and run it at 30fps at least. I target CPU, not GPU currently
  • Test several methods of drawing and updating GPU buffers.
I do not want to set any deadlines by now. Hopefully there will be some more interesting posts about this experiments in near future :)

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