init:
rp.create

update:
rp.set

draw:
rp.draw

Im pretty sure I got something wrong here.
It is being really heavy on performance.

Call set only once

(10-21-2011 08:22 AM)b1s Wrote:  Im pretty sure I got something wrong here.
It is being really heavy on performance.

PHP Code:

    height-=Time.d()*10;
    if(height<0)height=10;
    REP(500)
    {
        particleArray[i].radius = Random.f(0.04,0.08);
        particleArray[i].vel    = -Vec(0,25,0);
        particleArray[i].color  = Color(153,153,153,116);
        particleArray[i].pos    = Vec(Random.f(-10,10),height*Random.f(0,1),Random.f(-10,10));
        rp.set(&particleArray[i],500);
    } 


Yes, you call set() once your array is finalized (the entire particleArray, not just one entry). I get ~30 fps @ 200k particles updated in realtime (nearly half of that is advection on the cpu though)

Yeah I got it to work finally.. Thank you guys. Much heavier rain.
I now have something like 7500 particles and it does not affect much fps.
Tho over 10k I started seeing some effects.