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000218_owner-lightwave-l _Thu Jul 14 00:57:50 1994.msg
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Received: by mail2.netcom.com (8.6.8.1/Netcom) id AAA26972; Thu, 14 Jul 1994 00:21:51 -0700
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Date: Thu, 14 Jul 1994 00:23:57 -0700 (MST)
From: "Rob R." <robr@indirect.com>
Subject: Re: VTU Article
To: lightwave-l@netcom.com
In-Reply-To: <199407140440.AA270590827@relay2.geis.com>
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On Thu, 14 Jul 1994 tcminc@genie.geis.com wrote:
> > I wanted to know what the purpose was of creating two gradient maps?
>
> The whole reason I came up with this (admittedly convoluted (nice
> pun, eh?)) method of making a displacement map was because of the
> pain in the neck I experienced trying to make a suitable gradient in
> TPaint... it's either a turned-up end (as you found) or the gradient
> is too sharp at one end, or an incorrect curve at the other... etc.
Well actually, right after I posted that message I solved my
problem. The reason why I was getting the upturned ends, was because I
wasn't cropping the image properly, there was still some white on the ends.
> I imagine if your result had too much white, making the displacement-
> mapped object flat in the middle, you were using a gradient (white to
> black) created in TPaint. TPaint (as far as I know) doesn't make a
> linear gradient worth a hoot -- it's kinda rounded on top. All I can
> suggest is trying another paint program. Or ADPro.
Well no, TPaint did a great job after I cropped it properly in ADPro.
One thing it did lack was the swooping effect towards the ends (another
reason for mapping onto the real 3d object, heh). All I had to do to get
the edges to look right, is use the darken feature and use some
transperancy in the middle. It didn't take me too long to get a perfect
gradient just by using ToasterPaint. I understand why I should have used
the object though, I'll have to try it again.
Thanks for the info,
-Rob robr@indirect.com