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