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- ==========================================================================
-
- NEWS FLASH!
-
- As of release #38 of T3DLIB, I have decided to change what I release.
- To promote the users of T3DLIB to register this ShareWare with me, I have
- decided to not release the entire collection of goodies with the public
- release. Then, when people register, I will either e-mail (if possible)
- the other goodies, or mail them on a floppy.
- Of course, all currently registered T3DLIB users can simply send me
- e-mail and I will e-mail them back the latest collection of T3DLIB goodies,
- or if you do not have access to e-mail, then please mail me a blank floppy
- disk, and I will be happy to fill it up and mail it back to you, without
- further charge.
- Please see the CHANGES file to see what is new in this release. Of
- particular interest may be that I now support reading and writing of
- Imagine staging files.
-
- The "goodies" that are currently being "held back" are:
- 1) bumpit - algorithmically perturbs the points of an object - great for morphs
- 2) spherize - confines points of an object to a unit sphere - great for morphs
- 3) mbb - calculates and prints the Minimum Bounding Box of an object
- 4) set_texture_path - (re)sets the root path of all textures in an object
- 5) set_brush_path - (re)sets the root path of all brushmaps and stencils in object
- [as of R39...]
- 6) texit - applies Imagine 2.0 texture to an object (No source provided)
-
- So please register, and enjoy T3DLIB! Thanks!
-
- And now I return you to the portion you may have already read...
-
- -- Glenn
-
- ==========================================================================
- ==========================================================================
- ==========================================================================
-
- This is an lzh file containing a set of programs called T3DLIB (previously
- known as TTDDDLIB). These programs convert 3D objects in the binary TDDD
- format into the Textual TDDD (TTDDD) format and back again, and also
- provide a number of other conversion filters.
-
- -----------------------------------
-
- These programs are provided as SHAREWARE. If you choose to use these programs,
- you are obligated to send in a $25 (US) to the author, Glenn Lewis.
- His address:
-
- Glenn M. Lewis
- 8341 Olive Hill Court
- Fair Oaks, CA 95628
- (USA)
-
- Glenn is also reachable via email at glewis@pcocd2.intel.com.
-
- ----------------
-
- Enjoy these programs and the objects, and send in your Shareware fee to Glenn!
-
- [condensed message from...]
- -Steve
-
- --------------------------------------------------------------------------
- Steve Worley Worley@cup.portal.com
- --------------------------------------------------------------------------
-
-
- As of March 31, 1992, I have included the Amiga executables of the latest
- revision of T3DLIB in the files:
-
- T3DLIB*_68000exe.lha (68000, non-FPU version)
- T3DLIB*_68030exe.lha (68030, FPU version)
-
- Note that these were compiled with SAS/C, and so they do not have that bogus
- restriction of running only under version 2.04 of the operating system like the
- R33 version of the executables had!
- Yahoo! Thanks, Scott!
-
- You will find several filters in there, all of which support Imagine
- objects (and, of course, Turbo Silver objects). The most important filter you
- will use is called "readwrite", which basically replaces the old ReadTDDD and
- WriteTDDD programs.
-
- "ReadWrite" will read from its standard input, *EITHER* an Imagine object
- file *OR* a TTDDD file, and it is smart enough to know which is which without
- you telling it. (In fact, all of the executables from T3DLIB now read
- either type of file!) It will also read old Turbo Silver files, and make all
- external objects internal.
-
- "readwrite" will, by default, output TTDDD files to its standard output.
- But if you give it the "-tddd" flag (or "-t" for short), it will output
- Imagine object files directly!
-
- Remember that all of these programs are filters, so you must redirect
- their input and output from/to files.
-
- readwrite - reads and writes both TDDD and TTDDD files
- tddd2mif - reads TDDD or TTDDD files and outputs FrameMaker MIF files
- tddd2ps - reads TDDD or TTDDD files and outputs isometric wireframes
- with Top, Front, Right, and Isometric views in PostScript
- tddd2nff - reads TDDD or TTDDD files and outputs NFF files
- tddd2off - reads TDDD or TTDDD files and outputs OFF files
- tddd2ray - reads TDDD or TTDDD files and outputs Rayshade 4.0 files
- tddd2vort - reads TDDD or TTDDD files and outputs VORT files
-
- Two new filters as of release 34 are:
- tddd2dxf - reads TDDD or TTDDD files and outputs DXF (AutoCAD) files
- tddd2pov - reads TDDD or TTDDD files and outputs POV-Ray 1.0 files
-
- Here is some documentation on the OFF and NFF versions:
-
- TDDD is a complex format that allows heirarchical structure to be
- defined. Thus, a car might be defined as different parts, such as the
- frame, the doors, the tires, and the windows. When you are converting
- from TDDD, sometimes you will want to merge all of the sub-parts together
- to form one single object, but other times it is convienient to have the
- different parts saved as seperate objects so you can manipulate them
- easier. T3DLIB supports both conversion methods by a flag, -split.
-
- The programs included:
-
- 1) tddd2off
-
- Usage: tddd2off [-geom_only] [-split] [infile] [outfile]
-
- Converts an input TDDD or TTDDD file to an OFF format file. It defaults
- to outputting both a .geom and a .ipcol file, but if you are only
- interested in the structure of the object, the flag -geom_only
- (or -g) will ouput only the point, edge, and face information.
- -split will split heirarchical objects into individual objects.
- In this case, if the outfile name is "model", the output names
- would be "model001.geom", "model002,geom", etc.
-
- 2) tddd2nff
-
- Usage: tddd2nff [infile] [outfile]
-
- Converts an input TDDD or TTDDD file and saves an NFF format file.
-
- -------------------------------------------------------------------------
-
- Althought the following does not cut it for documentation (hopefully
- I will have some real docs by the next release...), I thought this might
- be helpful to some people:
-
- >>>>> On Wed, 24 Jun 92 13:23:29 -0400, kelly@ll.mit.edu said:
-
- Dave> Greetings;
-
- Dave> Can anyone out there tell me a little about the program
- Dave> TTDDD? Specifically what kinds of things can be done with it
- Dave> (especially by none programmers such as myself). I downloaded some
- Dave> nice 3D fonts from hubcap that were converted from TeX with TTDDD.
- Dave> Is this the kind of thing that I could do with little or no
- Dave> programming? Also what other programs/excessories would be useful
- Dave> with TTDDD? Thanks for the help!
-
- Hi! I am Glenn Lewis, the author of TTDDD and T3DLIB (previously
- known as "TTDDDLIB"). I thought I would post to the list so that
- everybody would be up-to-date.
-
- Basically, the old TTDDD programs, called "ReadTDDD" and
- "WriteTDDD" are obsolete, and do not support any of the new Imagine
- sub-chunks. Let me give you a summary of what T3DLIB can do for you
- from my point of view, which is obviously quite biased.
-
- First, T3DLIB consists of two things: a linkable library of
- routines that allow programmers to manipulate 3D objects and scenes
- easily from within their own applications. (Of course if you wish to
- use my code in a commercial product, you must check with me first, as
- one author failed to do.) The second part of T3DLIB is a collection of
- filters that are built using the linkable library. T3DLIB supports
- (reads/writes) most all "chunks" in the Imagine TDDD file format.
-
- The source code (and executables that run under *BOTH* 2.04 and 1.3
- of the Amiga operating system without any special libraries) are available on
- hubcap.clemson.edu [130.127.8.1] in the directory:
- pub/amiga/incoming/imagine/TTDDDLIB. Also, many people have contributed
- some really nice programs that use or enhance T3DLIB. Please look in the
- subdirectory called "contrib" on hubcap for a few of these.
- [NOTE: I have added a few of these programs to the registered T3DLIB disk.]
-
- The main program included in T3DLIB is called "ReadWrite". This
- is the one that makes the previous two programs obsolete, as mentioned
- above. "ReadWrite" is simply a filter, but a powerful one. First off,
- I better describe what the TTDDD format is: TTDDD is "Textual TDDD", and
- "TDDD" is an IFF (Interchange File Format [?]) that has many "chunks"
- and "sub-chunks" that describe objects and scene for Imagine (and
- previously Turbo Silver). "TDDD" was created by Impulse, Inc. TTDDD
- was created by me, and allows any text file to describe in full detail,
- all that a TDDD file can describe, but is editable and can be
- algorithmically generated.
-
- Back to "ReadWrite"... ReadWrite reads a file from its standard
- input, and writes a file to its standard output. The input file can be
- *either* a TTDDD *or* a TDDD file, and the output, by default, is a
- TTDDD file. If "ReadWrite" is given the "-tddd" (or "-t" for short)
- flag on its command line, it will write a TDDD file that is directly
- loadable by Imagine. Since Imagine does not support "external" objects
- like Turbo Silver did, "ReadWrite" will load any "external" objects at
- that time and make them internal to make Imagine happy. Also, if one
- wishes to "optimize" points and edges (by simply removing redundancies),
- the "-m" (for "merge") flag will accomplish this. This does, however,
- take much longer processing time, so sit back and let it crunch on the
- object(s).
-
- This, obviously, is the most useful (and necessary) program for
- dealing with TTDDD and TDDD files. Here is a list of other utilities
- that are included:
-
- tddd2off tddd2nff tddd2vort tddd2ray tddd2ps tddd2mif tddd2dxf tddd2pov
-
- All of the above are also filters, and perform the following
- conversions:
-
- tddd2off - converts TDDD (or TTDDD automatically) to OFF format
- tddd2nff - converts TDDD (or TTDDD automatically) to NFF format
- tddd2vort - converts TDDD (or TTDDD automatically) to VORT format
- tddd2ray - converts TDDD (or TTDDD automatically) to Rayshade 4.0 format
- tddd2ps - converts TDDD (or TTDDD automatically) to PostScript format
- tddd2mif - converts TDDD (or TTDDD automatically) to MIF format
- tddd2dxf - converts TDDD (or TTDDD automatically) to DXF (AutoCAD) format
- tddd2pov - converts TDDD (or TTDDD automatically) to POV-Ray format
-
- OFF is DEC's Object File Format.
- NFF is Eric Haines' (SP?) Neutral File Format.
- VORT is the "Very Ordinary Ray Tracer", I believe.
- Rayshade is that awesome program by Craig Kolb.
- PostScript output has 4 views: Top, front, right, and isometric.
- MIF is "Maker Interchange Format" for FrameMaker, and looks like the
- PostScript output, but is editable from within FrameMaker.
- DXF is AutoCAD's interchange file format.
- POV is POV-Ray's file format.
-
- The entire T3DLIB package is shareware, and costs $25 to
- register. Details are in the sources archive on hubcap. As a "Thank You"
- for registering, I will send you a disk with the two utilities: TSTeX
- (which created the font you viewed on hubcap from public domain TeX
- fonts [in PK format]) and SQuad, which generates superquadric surfaces
- based upon parameters that you supply it. Examples of superquadrics are
- torii, cubes (with rounded edges), diamonds, and a sphere is a
- degenerate superquadric. I will also send you a copy of the TDDD file
- format, which is basically the documentation for the TTDDD file format,
- as it uses the same names, but is editable. I also provide some
- examples on the diskette.
-
- But back to your original question: What can this do for
- non-programmers? Well, you will probably find the utilities useful, and
- you may be interested in looking at the geometric details of an object
- (OK, maybe not :-).
-
- Most definitely, though, the power of the package comes from
- being able to algorithmically generate or modify objects and scenes for
- animating or for simply creating/modifying complex objects.
-
- Helge Rasmussen, for example, created a program called
- "igensurf" that uses the TTDDD format and filters to generate basically
- any surface that you can describe mathematically in closed form.
-
- Steve Worley, for another example, created an animation of a
- waterfall by algorithmically controlling the positions of thousands of
- little spheres.
-
- I, for a third example, created the steam locomotive object on
- hubcap with the help of TTDDD, and animated the pistons and wheels.
-
- One of my registered shareware users has a cabinetry business
- and models all cabinets and drawers using TTDDD first, and presents a
- video of his plans to the customer before he ever starts, making each
- presentation expressly unique for that person's kitchen or room.
-
- Feel free, if you have any questions, to send me e-mail. I hope
- I have answered any questions you have, without attempting to make this
- a commercial.
-
- Future work includes general object morphing for Imagine such
- that *any* two objects can be morphed from one to the other, with T3DLIB
- creating all the in-betweens, since Imagine currently can only morph two
- objects with the same topology (points/edges/faces).
-
- Of course, work on this will not continue until Steve Worley and
- I finish up Essence and ship it. :-) [Hmmm... as of release 34, that is
- not longer an excuse, so I will have to think of another good one. :-) ]
-
- -- Glenn
-
- Glenn Lewis | glewis@pcocd2.intel.com | These are my opinions...not Intel's
-