 | | | making stars with particles | making stars with particles 2003-11-21 - By Jo Smith
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Here's a quick tip I learned at Gnomon, haven't tested it though:
Turn auto-exposure off, do a quick render, note the values in your output
window, there should be two values that somehow correspond to glows. Copy
the first into your glow intensity, the second into your halo intensity.Re -
render animation.
As I said, haven't tested it, just passing it along, hope it works for you.
kjsmith
>From: Dru Abrams <dru@(protected)>
>Reply-To: maya@(protected)
>To: maya@(protected)
>Subject: Re: making stars with particles
>Date: Thu, 20 Nov 2003 18:02:11 -0800
>
>Glows tend to flicker in maya in general. If you have access to maya 4 or
>4.5 versions of the help docs just type in "glow flicker" and you'll get
>info on turning off the "auto exposure" toggle switch located under the
>default glow shader's
>attribute editor.
>
>I'd imagine if you are using any sampler info nodes or expressions to drive
>effects on your shader that could cause problems too.
>
>More generally, what exactly are you after with your stars? Are you flying
>through them, or are they just off in the background. If its the latter
>you should probably just do a good paint job on a hemisphere.
>
>my .02
>d
>
>Elvira Pinkhas wrote:
>
> > Hi,
> >
> > I have a shot flying in space. For stars, I am using a software render
>cloud type partticle with glow and incandescence turned on. However, the
>stars flicker throughout the animation.
> > Does anyone know why this is happening?
> >
> > Is there a better way to do stars? I tried to use hardware particles
>but I can't get any glow effects. The glow attribute doesn't do anything
>for harware particles. The incandescence is also not giving much glow,
>it's just making them whiter.
> >
> > If anyone can answer my question or has any advice on making stars w/
>particles (i think lights might be too expensive), I would greatly
>appreciate it.
> >
> > Thanks.
> > Elvira
> >
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>--
>Dru Abrams
>3D Artist
>Persistent Visions
>http://www.persistentvisions.com
>
>Instructor
>Expression Center for New Media
>http://www.expression.edu
>
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>
>
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