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threed(6) Svgalib User Manual threed(6)
NAME
threed - The svgalib 3d demo
SYNOPSIS
3d
DESCRIPTION
Well, the 3d demo...
I, Michael, the current svgalib maintainer, do not have any source for
it.
Thus, you may experience weird problems with new svgalib versions and
you need installed a.out libc and svgalib versions. Also the demo is
known to be buggy in several aspects. Thus, do not panic if it appears
not to work for you.
If it works in a certain mode for you be happy and play around with it.
For example, with recent svgalibs, 3d is unable to initialize the mouse
if not started directly in a linux console for unknown reasons.
Otherwise: Don't worry at all.
Here's the author's (Harm's) info about it:
There's also a 3d demo binary included in this directory. It has been
in a similar state for several months now, but I'm planning to get some
work done (although it probably won't be the amazing multi-player
networked 3D lightsource-shaded real-time VGA virtual reality
simulation). I'll release the source code at some point (when it has
some degree of flexibility). I'm sorry that there's no scene
description file; it will come. So now you know you can do this kind of
thing in Linux. And it's practically 100% C code.
You can set the graphics mode to be used with the SVGALIB_DEFAULT_MODE
environment variable (e.g. G640x480x256). All linear 256 color, 32K
color and 16M color modes are supported, with page flipping used if
available. Planar 256 color VGA modes also work. This should do 800x600
full screen 3D animation at near 10 fps with a good system. Request:
Please report if page flipping goes wrong on a particular chipset (e.g.
ET4000, Trident) in 320x200x256. Also 32-bit pixel truecolor modes
don't work correctly, this will be fixed. The user interface is
somewhat primitive at this point:
- Use the mouse to rotate.
- Left button accelerates, right decelerates.
- Press <W> to move upwards, <S> to go down again.
- Use <R> and <F> to control the zoom factor.
- <q> or <Ctrl>-C exits.
Note that the light source rotates quickly at an infinite distance.
This is not something that will easily occur naturally (as far as I
know)...
This demo is part of svgalib and can be found in the demos/
subdirectory of the original svgalib distribution. However, it is not
installed in the system by default, s.t. it is unclear where you can
find it if your svgalib was installed by some linux distribution. Even
then, when you have the demo on your system, you probably won't have
the sources s.t. it is only of limited use for you.
In case of any such problem, simply get an svgalib distribution from
the net. You even don't need to install it. Just make in the demos/
subdirecty. As of this writing, svgalib-1.2.12.tar.gz is the latest
version and can be retrieved by ftp from sunsite.unc.edu at
/pub/Linux/libs/graphics and tsx-11.mit.edu at /pub/linux/sources/libs
which will most probably be mirrored by a site close to you.
BUGS
Countless.
In addition, source is still not available. Sorry, I just don't have
it.
SEE ALSO
svgalib(7), vgagl(7), libvga.config(5), accel(6), bg_test(6),
eventtest(6), forktest(6), fun(6), keytest(6), mousetest(6),
scrolltest(6), speedtest(6), spin(6), testaccel(6), testgl(6),
testlinear(6), vgatest(6), plane(6), wrapdemo(6)
AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-math.uni-
essen.de>. The demo and most of it's documentation is due to Harm
Hanemaayer <H.Hanemaayer@inter.nl.net>.
Svgalib 1.3.0 8 April 1998 threed(6)