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echo: os2prog
to: Lars Friedrichs
from: Rob Basler
date: 1995-05-27 13:08:04
subject: How to... Voxel/Mars lan

LF>I cannot serve with that one, but I can tell you the basic ideas behind voxe
LF>space/landscape. I was interested in doing one a year ago,
LF>but... However, I read a lot about it, so I know at least
LF>how to do a simple one. It loks similar to "COMMANCHE", but
LF>it cannot change the angle of the horizone, but you might
LF>afterwards figure out, how that works. If so, please leave
LF>a mail to me. OK, now let's start the show:

I actually implemented such a beast in an OS/2 full screen.  To have a
tiltable horizon, you apparently need to do matrix transformations on
each voxel, I don't know how Comanche does this in real time.  My
semi-optimized C code could only do around 15FPS on a 486-66 with a
320x130 window on 1024x1024 terrain going out to about 250 units from
the origin (had to go that far to have it look like you weren't about
to fall off the world.)

LF>[tip: write a
LF>plasma-generator to create map, write a mail, if you don't
LF>know how!]).

OK, now I'm interested, I could never come up with any terrain that was
interesting looking without being too "squary".  How's a plasma
generator work?  Oh, and since I'm asking questions, I don't suppose you
know how the run length compression used in the Comanche data files
works?  I figured out that they are 1024x1024, and that one is terrain
and the other color, but I could never figure out the compression scheme
they used.

Rob.
___
 X SLMR 2.1a X OS/2: Windows with bullet proof glass.

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