realflow maya issue

#1

hi! im having a strange problem , I have a simulation with realflow…first issue is , can I delete the first frames of the first particles emitting after simulation since before simulation is impossible seems? if i dont want the particles from the emitting place? if put a Kvolume there just kill everything cant start simulating… its like I want the middle part of the simulation and delete the first and ending particles … anyways I try do it in maya , maya particles goaling realflow cached particles , and trying to kill maya particles in those first frames and works but not works exactly… the basic problem is some way to can use that clipping box option to cut realflow mesh but I need to cut particles , because the point is retouch particles to make the mesh … any idea?

#2

I’m having trouble understanding but have you looked into inverting your Kill daemon? That is a common way to get rid of stray particles.

#3

basically the thing is i dont want see the first particles from the emitter in the simulation , i just want see the particles when fall on the ground , if i kill them just i dont get any simulation ,
what i want is like a Khide , put a volume field to hide particles like if they dont exist in the simulation , and once the particles are cached i cant kill them , also in maya cant use lifespanpp to kill cached particles

#4

Well this is really more of a Realflow question, and there are a few ways to do exactly what you are asking. As rochre26 mentioned, you can invert your kVolume Daemon. But if you don’t want to kill them, you should look into filtering your particles into different containers…sounds complicated, but it is super easy and powerful. You can do it during simulation or even afterwards by loading in your existing particle sim cache with the binary loader emitter.
The basic rundown is to just create a container emitter, create a filter daemon and set it to boundary mode. Then position the bounds wherever you want to filter stuff.
Should get you rolling with just what you are looking for.
Hopefully that helps.
~Ben

#5

oh thanks for that introduction to filter daemon and container emitter , i can see some more light about controlling real flow simulations

#6

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