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Date: Sun, 10 Sep 1995 00:44:39 -0400 (EDT)
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Subject: Re: Clipmapping a fire
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On Sat, 9 Sep 1995, Mike McCool wrote:

>     I follow this string with fascination, as I am in the midst of an
> identical fire trick in Imagine.  It's worlds easier there, since clipping
> consists of the removal of everything that's "color 0."  I guess there is
> no real "color 0" in 24bit, so you end up clipping everything above a
> certain range.  I realize this is more precise, and video literate and all
> that--but it's still bookoo easier in Imagine. (Convince me I'm wrong, and
> I'll buy you a jelly donut).

If the color you want to get rid of is Black, then all you have to do
image map your sequence onto a surface and click on the Additive button.
It will make all Black or dark colors totally transparent.

I prefer chocolate glazed.  =)


                                     -David Warner

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