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- Atari CAD-3D to RAW Triangles
-
- cad3d2raw is a simple filter for converting Atari CAD-3D files (created
- by CAD-3D 2.x, CyberSculpt, and various tools from Lexicor and others)
- to the RAW triangle format supported by raw2pov. This is intended as a
- method of getting CAD-3D objects into your POV-Ray scenes for
- raytracing; a nice side-effect is that raw2pov can output Vivid and
- Polyray scene files as well, so users of those raytracers will be able to
- use CAD-3D objects in their scenes as easily as POV-Ray users.
-
- cad3d2raw was written from scratch by Chris Herborth
- (cherborth@semprini.waterloo-rdp.on.ca), who retains all rights to the
- program and its source code; the source code and cad3d2raw binaries
- created from the source code may be freely distributed. You can use the
- source code in your own programs as long as I am given credit, and you
- can compile and use the cad3d2raw program for whatever purposes you'd
- like. If you sell cad3d2raw to anyone, you're a jerk. Contact me if
- you'd like to include cad3d2raw in something like a CD-ROM collection or
- a shareware/Public Domain collection.
-
- If you use cad3d2raw for any commercial purposes, or if you use it to
- create any nice scenes, I would appreciate it if you'd send me a copy of
- the image you've rendered, preferably in JPEG format.
-
- Compiling cad3d2raw
-
- To compile cad3d2raw:
-
- 1) Edit the Makefile. You will probably have to change CC and possibly
- CFLAGS to match what your compiler expects; things like Microsoft C
- and Borland C seem to go out of their way to have incompatible
- command-line switches.
-
- 2) If you are compiling for a little-endian CPU (ie, Intel, some MIPS,
- VAX, probably one or two blasphemous others), add -DLITTLE_ENDIAN to
- CFLAGS; the code already takes care of converting the big-endian
- CAD-3D files into little-endedness for you.
-
- 3) If you are compiling for an operating system that insists on having a
- file's extension decide what an executable is, you'll need to change
- PROGRAM. DOS and OS/2 need .exe, Atari TOS needs .ttp (unless you
- use the Minix filesystem under MiNT).
-
- 4) Type 'make' and hit return. If you don't have a make program, get
- one.
-
- 5) In a short time, you should have a cad3d2raw executable to fondle and
- love... enjoy!
-
- Using cad3d2raw
-
- cad3d2raw is fairly easy to use, and has only a few options. Usage is:
-
- cad3d2raw [options] input.3d2 [output.raw]
-
- where the options and the output filename are optional.
-
- The available options include:
-
- -c Use the colours from the CAD-3D file (makes a Fractint RAW file);
- this will preserve the object colours. Remember to add -fc to the
- raw2pov command line if you use this!
-
- -b Use the colour base from the CAD-3D file (makes a Fractint RAW
- file); contrary to the usage message in cad3d2raw, this doesn't
- really work better... it seems to produce about the same effect as
- using -c. This is a bug/feature and will probably go away in
- the next version, if there is one. Remember to add -fc to the
- raw2pov command line if you use this!
-
- -v Produce verbose output. This is good if you've got a slow manchine
- and want some sort of indication that cad3d2raw is actually doing
- some sort of work.
-
- -d Produce debugging output (ie, extra-verbose). This isn't too useful
- unless you think you've got a corrupt CAD-3D file.
-
- Less useful options include:
-
- -h Print the usage message.
-
- -? Same as -h.
-
- -V Prints version info. On a some systems, "ident cad3d2raw" will
- give you the same information.
-
- Sources of CAD-3D Objects
-
- Lots of great CAD-3D objects can be found on these Internet FTP sites:
-
- atari.archive.umich.edu:/atari/Graphics/Elwell
-
- This is the official FTP site for the Atari community; unfortunately,
- there doesn't seem to be too many CAD-3D objects here. Try connecting
- to msdos.archive.umich.edu if atari.archive.umich.edu is busy.
-
- avalon.chinalake.navy.mil:/pub/objects/3d2
-
- This site has lots of different objects in lots of different formats, as
- well as documentation for the formats and converters. If you can't get
- on here, there is a mirror at wuarchive.wustl.edu in
- /graphics/graphics/mirrors/avalon.chinalake.navy.mil/objects/3d2. The
- avalon.chinalake.navy.mil directory path may be wrong, I've never been
- able to connect there.
-
- ftp.std.com:/pub/atari/Graphics/Lexicor/3D2
-
- This is the official FTP site for Lexicor Graphics; there are lots of
- objects and animations available here, but mostly in Atari formats.
- Lexicor is the NuTek of the Atari community. This is also Kibo's home
- site.
-
- There are also a tonne of CAD-3D objects available on GEnie, and
- probably on CompuServ as well.
-
- If you run a BBS that has CAD-3D objects available, let me know, and
- I'll include it here in future releases.
-