Received: by netcom6.netcom.com (8.6.8.1/Netcom) id QAA23497; Tue, 13 Sep 1994 16:26:03 -0700
Received: from nova.unix.portal.com by netcom6.netcom.com (8.6.8.1/Netcom) id QAA23483; Tue, 13 Sep 1994 16:25:59 -0700
From: Paul_-_Griswold@cup.portal.com
Received: from hobo.corp.portal.com (hobo.online.portal.com [156.151.5.5]) by nova.unix.portal.com (8.6.7/8.6.5) with ESMTP id QAA14492 for <lightwave-l@netcom.com>; Tue, 13 Sep 1994 16:23:38 -0700
Received: from localhost (pccop@localhost) by hobo.corp.portal.com (8.6.4/1.64) id QAA15946 for lightwave-l@netcom.com; Tue, 13 Sep 1994 16:23:36 -0700
To: Lightwave-l@netcom.com
Subject: Re: Motion Blur
Lines: 25
Date: Tue, 13 Sep 94 16:23:35 PDT
Message-ID: <9409131623.6.13486@cup.portal.com>
X-Origin: The Portal System (TM)
Sender: owner-lightwave-l@netcom.com
Precedence: bulk
Reply-To: lightwave-l@netcom.com
Bob,
I just skimmed through your message on motion blur - I believe that if you
are seeing exact copies of your object appear instead of an actual blur, you
need to use antialiasing at medium instead of low. I believe that LW is not
re-rendering the image enough times to acutally give you a blur and so you
end up with semi-transparent copies of your image where the blur would be.
Sampling threshold is a value where lightwave compares two side by side
pixels and determines whether or not to antialias. The higher the value the
more dramatic the change must be for the pixels to be antialiased. I'm sure
one of the math weenies on the list can give you a better, more acurate
description of what is happening during adaptive sampling. I usually use a
value between 18-25 for most renderings.
I hope I have that right! Someone will correct me if I'm off on this one.