Regular particle emission from curve

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john clausing

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Oct 18, 2011, 4:39:55 PM10/18/11
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Hi list,

ok, this may be a dumb one.....but.

how can i emit at regular intervals (spatially) from a curve? its easy to randomize, but would like to emit with equidistant points along a curve.
is there a way to specify distances between emitted points?

thanks,

john

Grahame Fuller

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Oct 18, 2011, 5:31:59 PM10/18/11
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Build Linearly Interpolated Array (0 to 1), plug into the UV port of UV to Location (which also doubles as U to Location for curves), and use the output locations however you want.

gray

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john clausing

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Oct 18, 2011, 5:59:46 PM10/18/11
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thanks grahame,

i've plugged the BLI into the UV to location and plugged that into the curve that is the emitter.....does this "normalise" the vertexes on the curve?

i'm trying that, but confess i don't quite understand. if you have a moment, would you mind explaining further?

appreciate it,

john




From: Grahame Fuller <Grahame...@autodesk.com>
To: "soft...@listproc.autodesk.com" <soft...@listproc.autodesk.com>
Sent: Tuesday, October 18, 2011 5:31 PM
Subject: RE: Regular particle emission from curve

Grahame Fuller

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Oct 18, 2011, 6:20:57 PM10/18/11
to john clausing, soft...@listproc.autodesk.com
See the attached image. The distribution might not be exactly regular, especially near the endpoints. For best results:


* Use Fit on Curve to create a second curve with plenty of subdivisions, and sample that.

* Reparameterize the second curve and set the parameterization to "Chord Length".

gray

From: softimag...@listproc.autodesk.com [mailto:softimag...@listproc.autodesk.com] On Behalf Of john clausing
Sent: Tuesday, October 18, 2011 06:00 PM
To: soft...@listproc.autodesk.com
Subject: Re: Regular particle emission from curve

thanks grahame,

i've plugged the BLI into the UV to location and plugged that into the curve that is the emitter.....does this "normalise" the vertexes on the curve?

i'm trying that, but confess i don't quite understand. if you have a moment, would you mind explaining further?

appreciate it,

john

________________________________
From: Grahame Fuller <Grahame...@autodesk.com>
To: "soft...@listproc.autodesk.com" <soft...@listproc.autodesk.com>
Sent: Tuesday, October 18, 2011 5:31 PM
Subject: RE: Regular particle emission from curve

Build Linearly Interpolated Array (0 to 1), plug into the UV port of UV to Location (which also doubles as U to Location for curves), and use the output locations however you want.

gray

regular_on_curve.png
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