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- Path: sparky!uunet!iWarp.intel.com|inews!fxrs!glewis
- From: glewis@fws204.intel.com (Glenn M. Lewis ~)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Impulse FORM TDDD is crummy. was: IFF 3D standard? (DR3D?)
- Message-ID: <GLEWIS.92Jul21174045@fws204.intel.com>
- Date: 22 Jul 92 00:40:45 GMT
- References: <1992Jul21.135437.1@economics.adelaide.edu.au>
- <1992Jul21.055017.2772@wam.umd.edu> <tKR-ft_@engin.umich.edu>
- Sender: news@inews.intel.com
- Organization: ICD, Intel Corporation, Folsom, CA
- Lines: 45
- In-reply-to: chymes@uri.csmil.umich.edu's message of 21 Jul 92 16:45:04 GMT
-
- >>>>> On 21 Jul 92 16:45:04 GMT, chymes@uri.csmil.umich.edu (Charles Hymes) said:
-
- Charles> Impulse's FORM TDDD is a crummy IFF is I heartily incourage is
- Charles> upgrading. My promlem with it is that while it is a LEAGL IFF
- Charles> it is a NON-STANDARD IFF. It is non-standard to the point that
- Charles> parseiff.library is won't read any of its chunks. The problem
- Charles> is that it has sub-chunks and sub-sub chunks, without any of
- Charles> the encapulating FORMs LISTs or PROPs. TDDD's look like this:
-
- Charles> [description of how it is and how it should be deleted...]
-
- This may be quite true.
-
- Fortunately, if one would like to read/write TDDD files, then
- all a person needs to get is TTDDDLIB (aka T3DLIB) on hubcap.clemson.edu
- [130.127.8.1] in the directory: pub/amiga/incoming/imagine/TTDDDLIB.
-
- This library includes a number of filters to convert TDDD into
- Rayshade, OFF, NFF, Vort, MIF (FrameMaker), PostScript (isometric,
- front, top, and right wireframe views), and coming soon: DXF. There
- also exists an "off2ttddd" converter... check archie for its location.
-
- But the thing that will be helpful to most people is a filter
- called "readwrite" that can convert back and forth between TDDD and
- Textual TDDD (TTDDD) formats. I invented TTDDD as an ASCII equivalent
- of TDDD, such that people can write converters to generate or parse
- TTDDD easily, as well as create TTDDD files algorithmically, then
- convert them into Imagine objects. Helge Rasmussen wrote "igensurf"
- which outputs TTDDD based on mathematical descriptions of parametric
- surfaces.
-
- Anyway, this library will greatly assist programmers in parsing,
- creating, and editing TDDD files. This package is shareware, and
- commercial use is not allowed without prior permission (which has
- actually been violated in one instance already).
-
- Note that the T3DLIB executables for the Amiga were created with
- GCC 2.0 for the Amiga, and for some reason, only work under version 2.04
- of the Amiga operating system. All the source is there, though, if you
- wish to compile it with your own C compiler.
-
- -- Glenn Lewis
- (co-author of Essence)
- --
- Glenn Lewis | glewis@pcocd2.intel.com | These are my opinions...not Intel's
-