Closest location doesn't work with curves fed in with a group. It always
uses the first one.
Eric T.
On 3/19/2015 12:23 PM, Grahame Fuller wrote:
Greg, any details about not getting it to work on curves? As far as I know, it
should.
gray
From: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Eric Thivierge
Sent: Thursday, March 19, 2015 12:02 PM
To: softimage@listproc.autodesk.com
Subject: Re: ICE emit particles and follow branching geometry
Your best bet is to create a mesh from those curves and transfer the curve's
tangent onto the mesh as a vector attribute.
Emit from the curve but use the geo's attribute to set the direction. How Paul
Smith's hair grooming stuff works essentially.
Using a group of curves or even doing one curve at a time won't get a nice
smooth result I don't think. You'll probably get popping.
Eric T.
On 3/19/2015 11:48 AM, Greg Punchatz wrote:
Dave has got something worked out, but its not ideal. He cannot get a group of
curves to work, and is wiring up each one in by hand in the ICE tree.
What he wants to do is emit an objects from one end of a curve and the have it
follow the curve to the end.. but he wants to do this to a group of curves. He
can make it work one curve at a time fine, he can wire the bizzilion curves up
by hand but its not ideal.
On Thu, Mar 19, 2015 at 9:50 AM, <pete...@skynet.be<mailto:pete...@skynet.be>>
wrote:
I think you can get the closest point on a group of curves,
get the point-tangent from there and use that (vector) as a force,
combine to taste with turbulence, and perhaps a force pulling towards the curve
(vector from point to closest point) for extra control.
adding/removing curves to the group is all you’d need to do to add them to the
simulation.
hope this helps.
From: Dave Sisk<mailto:d...@janimation.com>
Sent: Thursday, March 19, 2015 3:27 PM
To: softimage@listproc.autodesk.com<mailto:softimage@listproc.autodesk.com>
Subject: ICE emit particles and follow branching geometry
Hi, I'm trying to create an effect with particles flowing from one several ends
of branching geometry to another of several ends on the same geometry.
Right now I'm working with Flow Along Curve and a bunch of
partially-overlapping curves that go from one end to the other, but since ICE
is pretty limited in what you can plug a geometry port into, I'm running into a
LOT of duplication that makes adding or removing curves a labor intensive
process.
Is there another approach to this I should be trying?
Thanks,
Dave Sisk
