Local space particle emission?

[dafluke]

I'm trying to parent a particle cloud to a null in an animated hierarchy to do 'local space' particle emission. Meaning I want the particles to be offset by the hierarchy's transforms. When I try to do this though, instead of being emit near my hierarchy, the particles end up getting offset really far off in the scene.. and I can't figure out how to avoid this..

Here's an example scene I've created to demonstrate the problem.

Would appreciate anyone's help with this! thanks

Lucas

[dafluke]

I should add that this problem doesn't seem to occur when I use emit from volume, but it does when I use emit from null.

[Tekano]

Hi,

can you not cache the sim with the emitter not moving and then move the cached sim around with the null?

[GBOT]

Try to multiply point position of cloud by Kine.global of parent (multiply vector by matrix node) and dont forget to unparent cloud in scene hierarchy