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threed(6)		      Svgalib User Manual		     threed(6)

       threed -	The svgalib 3d demo


       Well, the 3d demo...

       I,  Michael, the	current	svgalib	maintainer, do not have	any source for

       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 net-
       worked 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 some-
       what 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

       This demo is part of svgalib and	can be found in	the  demos/  subdirec-
       tory 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   at
       /pub/Linux/libs/graphics	 and at /pub/linux/sources/libs
       which will most probably	be mirrored by a site close to you.

       In addition, source is still not	available. Sorry, I  just  don't  have

       svgalib(7),    vgagl(7),	   libvga.config(5),   accel(6),   bg_test(6),
       eventtest(6), forktest(6), fun(6),  keytest(6),	mousetest(6),  scroll-
       test(6),	speedtest(6), spin(6), testaccel(6), testgl(6),	testlinear(6),
       vgatest(6), plane(6), wrapdemo(6)

       This manual page	was edited by Michael Weller  <eowmob@exp-math.uni-es->.	 The  demo and most of it's documentation is due to Harm Hane-
       maayer <>.

Svgalib	1.3.0			 8 April 1998			     threed(6)


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