[Sidefx-houdini-list] Fast moving smoke?
craigleehoffman at aol.com
Fri Nov 15 13:49:41 EST 2013
Yes, and enabling and multiplying velocity on the other tab to be a little higher.
It is necessary to make it work (why isn't it on as default?!?) but default container auto resize doesn't work well for fast moving sources (I disable and it seems to work as expected..) and you need to crank up subsamples.
Also scale doesn't seem to work as expected (making units 1 m vs .01m) doesn't seem to act as I would expect for the big change in scale.
From: "Tony Atherton" <tony_atherton at hotmail.co.uk>
Sent: 11/15/2013 7:44 AM
To: "sidefx-houdini-list at sidefx.com" <sidefx-houdini-list at sidefx.com>
Subject: Re: [Sidefx-houdini-list] Fast moving smoke?
Have you had a look at the motion blur tab on the fluid source node. I find this can be useful when you need to create a smooth emitter from a fast moving object.
> From: jclark2900 at gmail.com
> Date: Thu, 14 Nov 2013 09:30:37 -0800
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] Fast moving smoke?
> Hey Craig,
> this should help get you part way there. I agree, it would be awesome for
> something like this to be a standard setup!
> On Thu, Nov 14, 2013 at 9:18 AM, Craig Hoffman <craigleehoffman at aol.com>wrote:
> > Hi everyone,
> > I am struggling to make a super fast moving object leave a nice smooth
> > smoke trail using Pyro FX smoke- think something like a jet leaving an
> > exhaust trail.
> > Are there any good hints to make this work reasonably fast without leaving
> > behind discreet puffs or just brute forcing it with DOP substeps?
> > Also, I think it would be great if Sidefx made a Pyro Shelf tool that
> > works well for fast moving objects since right out of the box none of the
> > tools seem to be able to handle that well. And it is really hard to find
> > information on the proper way to set container resizing or utilize velocity
> > from the source in an expected manner for fast moving objects
> > Thanks,
> > Craig
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