From cinelerra-admin@skolelinux.no  Sat May 10 08:39:14 2008
Return-Path: <cinelerra-admin@skolelinux.no>
X-Original-To: cinelerra@e.kevb.net
Delivered-To: cinelerra@e.kevb.net
Received: from init.linpro.no (init.linpro.no [87.238.46.2])
	by e.kevb.net (Postfix) with ESMTP id 94334104364A
	for <cinelerra@e.kevb.net>; Sat, 10 May 2008 08:39:13 -0400 (EDT)
Received: from localhost ([127.0.0.1] helo=init.linpro.no)
	by init.linpro.no with esmtp (Exim 4.50 #1 (Debian))
	id 1JuoJU-0000OX-5I; Sat, 10 May 2008 14:36:39 +0200
Received: from [158.36.191.139] (helo=localhost)
	(Authenticated Sender=herman@skolelinux.no)
	by init.linpro.no with esmtpa (Exim 4.50 #1 (Debian))
	id 1JuoIG-0000MG-22
	for <cinelerra@skolelinux.no>; Sat, 10 May 2008 14:35:24 +0200
To: cinelerra@skolelinux.no
Subject: Re: [CinCV] Working on new video transitions for Cinelerra...
From: "Herman Robak" <herman@skolelinux.no>
Content-Type: text/plain; format=flowed; delsp=yes; charset=iso-8859-15
MIME-Version: 1.0
References: <173641.65367.qm@web65404.mail.ac4.yahoo.com> <200805101423.38946.johannes.sixt@telecom.at>
Content-Transfer-Encoding: 7bit
Message-ID: <op.uaxumfpv5056ey@localhost>
In-Reply-To: <200805101423.38946.johannes.sixt@telecom.at>
User-Agent: Opera Mail/9.24 (Linux)
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on spamtrap
X-Spam-Status: No, hits=-10.2 required=5.0 tests=DSPAM=-10.19694  version=2.63
X-Spam-Level: 
X-DSPAM-Signature: !DSPAM:48259325262741070613576!
X-DSPAM-Probability: -2.0000
X-DSPAM-Confidence: 0.9997
X-Spam-Score: -1.4 (-)
Sender: cinelerra-admin@skolelinux.no
Errors-To: cinelerra-admin@skolelinux.no
X-BeenThere: cinelerra@skolelinux.no
X-Mailman-Version: 2.0.13
Precedence: bulk
Reply-To: cinelerra@skolelinux.no
List-Unsubscribe: <https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra>,
	<mailto:cinelerra-request@skolelinux.no?subject=unsubscribe>
List-Id: Mailinglist for Cinelerra,
	the community version <cinelerra.skolelinux.no>
List-Post: <mailto:cinelerra@skolelinux.no>
List-Help: <mailto:cinelerra-request@skolelinux.no?subject=help>
List-Subscribe: <https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra>,
	<mailto:cinelerra-request@skolelinux.no?subject=subscribe>
List-Archive: <https://init.linpro.no/pipermail/skolelinux.no/cinelerra/>
Date: Sat, 10 May 2008 14:36:05 +0200
X-Spam-Score: -1.4 (-)

On Sat, 10 May 2008 14:23:38 +0200, Johannes Sixt  
<johannes.sixt@telecom.at> wrote:

> ShapeWipe can do top-to-bottom wipes, checkerboard wipes, split from the
> center or into the center and whatnot. You only have to create a suitable
> gray-scale png. Look at the examples in $prefix/lib/cinelerra/shapewipe.
>
> But, as Herman noted, it does have a few deficiencies. If you spend your  
> time on wipes, then its best invested in improving the ShapeWipe plugin.

  I suspect that even 16 bit grayscale may be a little coarse
in some cases.  Either the shapes should be rendered as OpenEXR
(32 bit float) or as gradients in a vector-based format.

  Any thoughts?  Please consider disk and memory size of the
patterns, calculation times, I/O, the works.

-- 
Herman Robak

_______________________________________________
Cinelerra mailing list
Cinelerra@skolelinux.no
https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
