Particle trails on webcam

Hello everyone! I have a little problem with my OF project, where I have one particle system that follows the centroid of my hand (capture with ofContourFinder). Now I want to leave a trace of the particle’s trajectory on the screen: what should I use? I must use the FBO? And how?

Thanks!

hi,
yes, use an fbo.
there is an example for that in examples/gl/fboTrailsExample
cheers