I don't think they'll have an emit location since they are being emitted
from a position. I believe without looking at the node, that there is an
"On Creation" port for the emit node that you'll have to use to relate
the emitter point to the emitted point and get the velocity that way.
Maybe spawning particles would be better than emitting from positions,
that way you should have access to the particle that spawned it.
Eric T.
On 10/21/2014 10:19 AM, Morten Bartholdy wrote:
Hi Eric
The Attribute Display Prop shows there are PointVelocity values in the
cache - they look as I would expect too mind you.
When I inspect the Inherit Emitter Velocity compound, the Get
PointVelocity node is supposed to get its value from the Particle Emit
Location - so I am guessing the cached PointVelocities are not
transferred to the Particle Emit Location... does that make sense?
I am in a bit over my head here though :/
Morten
Den 21. oktober 2014 kl. 14:43 skrev Eric Thivierge
<[email protected]>:
> Can you apply and Attribute Display prop to the cached point cloud to
> see if there are 'PointVelocity' values being read in by the cache?
> Will help you debug it by showing you it wasn't cached out.
>
> Eric T.
>
> On Tuesday, October 21, 2014 7:40:57 AM, Morten Bartholdy wrote:
> > I am emitting particles from a cached pointcloud and would like them
> > to inherit some velocity from the emitter particles. The inherit
> > emitter velocity node goes red, apparently caused by the compounds
Get
> > PointVelocity from the Particle Emit Location. I did cache
> > PointVelocity on the emitter pointcloud, so I am not sure why it
isn't
> > read. Is there a way to fix this?
> >
> > On a side note - I managed to emit from the cached pointcloud, but it
> > emits from point positions - I would like to emit from surface or
> > volume of the instanced geometry on the cached pointcloud. So far I
> > have not found a way to do this - is it possible directly or perhaps
> > via workaround? I tried emPolygonizer4 on the cached pointcloud in an
> > attempt to emit from that geometry but so far I have not got it
working.
> >
> > Thanks - Morten
> >
>
