ICE: Emit from polygon cluster

[Chris Marshall]

Hello All,

I'm sure this is easy, but I can't get it to work. I want to emit particles from a polygon cluster, but I keep getting Type Mismatch errors when connecting.

Any ideas?

Thanks

Chris

[Stephen Blair]

Here's one way. I haven't tried it recently.
http://xsisupport.wordpress.com/2010/02/15/emitting-particles-from-a-polygon-cluster/

[Orlando Esponda]

Hello Chris,

If your using the Filter attribute of the generate sample set node   (Emit from Geometry > Generate Point > Generate Sample Set), then you need to select the IsElement attribute below the Cluster, instead of the cluster itself.    It works here.

Hope that helps,

Orlando.

[Fabricio Chamon]

add polygonmesh.clustername.isElement to the emission filter?

[Chris Marshall]

Got it!

Not very obvious that one!

Thanks.

--

Chris Marshall

Mint Motion Limited

029 2002 5762

07730 533 115

www.mintmotion.co.uk

[Chris Marshall]

OK sorry about this. I have this working but I only want to emit 1 particle per poly in the cluster, but using Generate Sample Set appears to give random selection of the polys. So to cover each with at least 1 particle requires emitting hundreds more.

So the new question is, is it possible to emit 1 particle per poly in the cluster?

or

Once emitted, is it possible to filter overlapping particles, so I'm left with just 1 at each position?

Thanks

Chris

[Stephen Blair]

Get the PolygonPosition of the mesh, and plug it into Emit from Position?
Then change the rate to Number of Particles = 1

From: softimag...@listproc.autodesk.com [mailto:softimag...@listproc.autodesk.com] On Behalf Of Chris Marshall

Sent: April-26-11 10:24 AM
To: soft...@listproc.autodesk.com
Subject: Re: ICE: Emit from polygon cluster

OK sorry about this. I have this working but I only want to emit 1 particle per poly in the cluster, but using Generate Sample Set appears to give random selection of the polys. So to cover each with at least 1 particle requires emitting hundreds more.
So the new question is, is it possible to emit 1 particle per poly in the cluster?
or
Once emitted, is it possible to filter overlapping particles, so I'm left with just 1 at each position?

Thanks

Chris

On 26 April 2011 14:31, Chris Marshall <chrisma...@gmail.com<mailto:chrisma...@gmail.com>> wrote:
Got it!
Not very obvious that one!

Thanks.

On 26 April 2011 14:15, Orlando Esponda <orlando...@gmail.com<mailto:orlando...@gmail.com>> wrote:
Hello Chris,

If your using the Filter attribute of the generate sample set node (Emit from Geometry > Generate Point > Generate Sample Set), then you need to select the IsElement attribute below the Cluster, instead of the cluster itself. It works here.

Hope that helps,

Orlando.

[Stephen Blair]

Oops never mind. Forgot the cluster part.

From: Stephen Blair
Sent: April-26-11 10:32 AM
To: 'soft...@listproc.autodesk.com'
Subject: RE: ICE: Emit from polygon cluster

Get the PolygonPosition of the mesh, and plug it into Emit from Position?
Then change the rate to Number of Particles = 1

From: softimag...@listproc.autodesk.com [mailto:softimag...@listproc.autodesk.com] On Behalf Of Chris Marshall
Sent: April-26-11 10:24 AM
To: soft...@listproc.autodesk.com
Subject: Re: ICE: Emit from polygon cluster

OK sorry about this. I have this working but I only want to emit 1 particle per poly in the cluster, but using Generate Sample Set appears to give random selection of the polys. So to cover each with at least 1 particle requires emitting hundreds more.
So the new question is, is it possible to emit 1 particle per poly in the cluster?
or
Once emitted, is it possible to filter overlapping particles, so I'm left with just 1 at each position?

Thanks

Chris

On 26 April 2011 14:31, Chris Marshall <chrisma...@gmail.com<mailto:chrisma...@gmail.com>> wrote:
Got it!
Not very obvious that one!

Thanks.

On 26 April 2011 14:15, Orlando Esponda <orlando...@gmail.com<mailto:orlando...@gmail.com>> wrote:
Hello Chris,

If your using the Filter attribute of the generate sample set node (Emit from Geometry > Generate Point > Generate Sample Set), then you need to select the IsElement attribute below the Cluster, instead of the cluster itself. It works here.

Hope that helps,

Orlando.

[Sebastian Kowalski]

just plug the PolygonPosition of your emitter into a filter node, filter by isElement from the cluster and plug this stuff into a add point.
good luck

[Chris Marshall]

That's exactly what I have. Maybe I have the Generate Sample Set options wrongly set.

[Chris Marshall]

That's it! No Generate Sample Set required!

Very simple solution in the end.

Thanks a lot!!

[Sebastian Kowalski]

here is screengrab.

[Chris Marshall]

Thanks Sebastian! That's what I ended up with!

You're pretty darn smart!!

Cheers