[1218] in linux-announce channel archive
Sceda: keyframe animation software
daemon@ATHENA.MIT.EDU (Lars Wirzenius)
Sun Oct 29 08:23:43 1995
Date: Tue, 24 Oct 1995 20:40:14 +0200
From: Lars Wirzenius <wirzeniu@cc.helsinki.fi>
To: linux-announce@vger.rutgers.edu
Reply-To: linux-announce-owner@vger.rutgers.edu
From: Denis McLaughlin <denism@cyberus.ca>
Subject: Sceda: keyframe animation software
Summary: GPL keyframe raytracing animation package
Followup-to: comp.graphics.animation
Organization: Yeah, right...
Keywords: animation keyframe raytrace sced sceda X Unix
Approved: linux-announce@news.ornl.gov (Lars Wirzenius)
Newsgroups: comp.os.linux.announce
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This is to announce the first public release of Sceda, a patched
version of Stephen Chenney's constraint-based modeller Sced.
Sceda adds the ability to do simple spline-based keyframe
animation: multiple scenes (keyframes) can be defined and
position, rotation and scale for all the objects are smoothly
interpolated across the keyframes using a modified spline algorithm.
Animations can be seen in wireframe realtime from within Sceda, or
the individual frames can be exported to be rendered.
Sceda requires Unix and X. I develop on a Linux box, so I know
it works there. I don't know of any reason it wouldn't work on
any other platform, but I've never actually tried.
Sceda is, like Sced, released under the GNU Public License:
the source code and patches against Sced 0.81, along with several
demonstration MPEG animations, are available on the Sceda home page:
http://www.cyberus.ca/~denism/sceda/sceda.html
The Sceda readme is appended below.
Denis McLaughlin
denism@cyberus.ca
- ------------------------------
Sceda: Scene Editor/Animator
Overview
- --------
Sceda is a patched version of sced, the cool three dimensional
modeller from Stephen Chenney (schenney@franklin.cs.berkeley.edu).
Sceda supports simple spline-based keyframe animation of scenes,
including wireframe animation from within sceda and exporting
animation sequences for rendering.
Description
- -----------
Sceda is, like sced, an X-based, constraint-oriented three
dimensional modeller. It also provides support for splined keyframe
animation. Animated objects have their position, rotation and scale
smoothly interpolated across multiple keyframes via a (modified)
spline function.
It naturally requires X, and a sufficiently Unix-like environment.
I develop on a Linux system, so I know it works there, but most other
platforms should also work, modulo messed up keysyms. This version
of sceda is based on sced 0.81.
This software is beta: it mostly works pretty well, but there are
still bugs to be found. If you try it out and something breaks,
drop me a line.
Currently, this version of sceda allows you to:
- Create and design single scenes, the same as in vanilla sced.
- Clone or copy a single scene to create multiple scenes. These
multiple scenes are used as keyframes for animating
- View and edit each keyframe individually.
- Control the number of interpolated frames between each keyframe
pair in various ways.
- Perform wireframe animations from within sced, in which the position,
rotation and scaling of the objects, the position and orientation of
the camera in the keyframes, and the zoom factor are smoothly
interpolated across the frames.
- Export scene description files for all frames (keyframe and inter-
polated) to the usual sced array of formats (POVray, Renderman,
Radiance, etc). A script file, for performing all the renders, is
also exported.
- Save and load keyframe sequences from files.
- Propagate views, objects, and attributes of objects across keyframes.
- Clone sets of objects within and across keyframes.
- Delete sets of objects across keyframes.
- Use various keyboard shortcuts for things like editing, zooming,
view recall and viewpoint manipulation.
Availability
- ------------
Sced is distributed under the GNU copyleft, and so are the patches
to get from sced to sceda. Sceda is available via the sceda home
page at:
http://www.cyberus.ca/~denism/sceda/sceda.html
Feedback
- --------
I'm interested in feedback from anyone who uses this, including bug
reports. I'm also very interested in seeing any animations you do with
it: if you come up with something particularly nifty, please let me
know about it. I can be reached at the email address below.
Denis McLaughlin
denism@cyberus.ca
October 21, 1995
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