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Subject: Re: Flames
In-reply-to: Your message of 31 Aug 94 15:51:00 -0500.              <[e-mail]>
Date: Thu, 01 Sep 94 17:16:39 EDT
From: Mark Thompson <[e-mail]>
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Kathy Blohm <[e-mail]> writes:
> February Lightwave Pro, there is a torch in Mark Thompson's article
> on Animating Textures.
> The article mentions fractal noise patterns modulating transparency
> and color. Is that how that torch was done, solely with creative
> texture mapping on just a plane?

The textures were applied to a shaped object (actually for this case, several
shaped objects). I didn't detail it in LWPro, but it had 5 or 6 tear drop
shaped objects, each with a similar animated texture for transparency and
color, but also animated displacement mapping was applied to each tear drop
individually to create a non-uniform flickering/pulsing behavior. However,
applying these types of textures to flat polygons can work as well. In my
furnace image, the flames behind the grate are simply a texture mapped
flat polygon. But for the torch, I wanted something viewable from all angles.

> Is there a sample of this object anywhere?

Its possible that it got included on the LWPro disk for that issue, but
I don't recall. But if it didn't, then there is no other place that would
have it (other than myself ofcourse ;-)
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%      `       '        Mark Thompson                 CONCURRENT COMPUTER  %
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