Search - User list
Full Version: Returning the speed of a particle
Root » Houdini Lounge » Returning the speed of a particle
furball
hi ,

I'm creating this flocking system, where I'm using a wind POP to drive a group of particles about x and Z (a 2D plane) at random.

I'm using the Amplitude parameter in the Noise Tab (within the wind POP) for this… seems ok, at least for now.

I also have a few sequences of geos (all walk cycles) that run at different speeds.

Is there a way of getting the speed of particles within a certain range?

I need to group particles depending on their speed range to copy the correct walk cycle to that group. (e.g: slow particles will be assigned a slow walk, fast particles will have a fast walk… ).

Any ideas?

Thanks
furball
I think I'm blind…

velocity of particles is displayed in the details pane (just in case someone has the same problem)

sorry… I'm newbie in POPs
old_school
Then you will want to get the magnitude of the velocity:

length($VX,$VY,$VZ)
Ondrej
You can just use $SPEED in POPs.
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.
Powered by DjangoBB