Here is a new test with my PyCarrara Python plugin : a fountain driven by an audio spectrum.

www.youtube.com/watch

The fountain is built with 100 particle emitters. Each particle emitter is associated to a frequency range of the audio spectrum. The simulation handles about 25.000 particles (250 per emitter).

The Python script contains a loop with 5 steps per second. At each step, the script does:

• compute the audio spectrum with a FFT operator
• evaluate the audio power in each spectrum subband
• compute the velocity parameter of each particle emitter according to the measured power
• set 100 keyframes for the 100 particle emitters

Rendering with Carrara Pro 8. Final compositing and color grading with FXhome VisionLab Studio.

Frederic.