Particles not emitting along vector attribute ?

[CinnamonMetal]

I've created a vector attribute and applied it to normals, but how do I get particle to inherit the vector attribute and flow along this vector; I've inherited the attribute in a POPNet but the particles are not emitting along the vector ?

 

[Noobini]

too hard to guess what your setup is...so here goes nothing...you can adjust the 'target' if you like. Very basic tho so don't laugh.

vu_emit_direction.hiplc

Edited January 7, 2020 by Noobini

[Noobini]

ok I'll assume some of you may have laughed...so here's a more sophisticated version. Previously, all particles shoot in a parallel direction since the direction is simply from world origin pointing towards target.

Now, each 'gun' will aim independently at the target and shoot, it does take the position of the individual gun into account.

vu_emit_direction_pp.hiplc

[CinnamonMetal]

The particles are not inheriting the point vector, instead they are emitting from the point of the vector, which is just the points on the geometry.  Rather then the particles emitting along the point vector ?

[Noobini]

I spent time creating sample files for you and you continue to talk in riddles instead of uploading your file..goodluck man.

[CinnamonMetal]

@Noobini Whoa Dude, chillax man I've attached a scene file. 

 

particles_along_vector.hipnc

[Sean-R]

You need to define your velocity. If you add the following line to your wrangle it will work:

 

v@v = @N;

You will also need to reset the Inherit attributes parameter back to "*"

[CinnamonMetal]

@Sean-R Thanks, but how do I get the particles to continuously flow around the torus; currently once the velocity has done a full rotation the particles shoot in opposite direction ?

[markinglevfx]

To have them flowing around the torus you'd be better off using 'advect from volume'. This way your particle's velocities are constantly being updated, rather than just inherited at the start like in your previous setup.

particles_advect_by_volume.hipnc