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ClosedGL Graphics Library
Posted by Michael on 3 February 2005, 02:28 GMT

[ClosedGL]David Teitlebaum has uploaded his stunning graphics library for the TI-89, ClosedGL. Formerly of the name "OpenGL" but changed because of trademark concerns, this program is intended to be statically linked by developers to aid in the creation of advanced graphics. There isn't much more to mention here as only developers will be able to directly make use of this. Be sure to look at some of the other screenshots in the zip file; they are very impressive.

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Re: ClosedGL Graphics Library
W Hibdon  Account Info
(Web Page)

Wow. That is quite impressive. I really wish I were able to make use of that, just because. Hopefully more people will be maing 3D games not based on the fat engine.

-W-

Reply to this comment    3 February 2005, 10:43 GMT

Re: ClosedGL Graphics Library
Paul Houser Account Info
(Web Page)

Too slow at the moment, but I'ld like to use it if it gets any faster, and as the developer states in the readme, he plans on improving the speed.

Reply to this comment    3 February 2005, 13:19 GMT

Re: ClosedGL Graphics Library
Kevin Kofler Account Info
(Web Page)

It's interesting that ticalc.org suddenly has trademark concerns, after all the programs in the archives illegally calling themselves "Tetris" or "Super Mario"...

Reply to this comment    3 February 2005, 15:05 GMT

Re: Re: ClosedGL Graphics Library
Sebastian Schmied Account Info

I think it was the author's decision to change the name, not ticalc's.

Reply to this comment    3 February 2005, 16:04 GMT


Re: Re: Re: ClosedGL Graphics Library
David Teitlebaum  Account Info

No, it was ticalc's decision.

Reply to this comment    3 February 2005, 16:59 GMT


Re: Re: Re: Re: ClosedGL Graphics Library
Sebastian Schmied Account Info
(Web Page)

OK :)

Reply to this comment    4 February 2005, 18:47 GMT

Re: Re: ClosedGL Graphics Library
DWedit  Account Info
(Web Page)

Trademark concerns haven't concerned me yet. I see Taito hasn't even gone after the makers of a commercial shareware game titled "Bubble Bobble Nostalgie". I doubt they'd chase after a calculator version.

Cell phone version maybe.

Reply to this comment    3 February 2005, 18:07 GMT


Re: Re: ClosedGL Graphics Library
nyall Account Info
(Web Page)

See above link. It seems that the opengl trademark is taken fairly seriously

Reply to this comment    5 February 2005, 19:36 GMT

Re: Re: Re: ClosedGL Graphics Library
Wolfeinstein68k Account Info

I wonder how much they paid their lawyers to think up all the stuff in the copyrite page...also they seem to be more strict on their logo than the actual program

Reply to this comment    7 February 2005, 02:53 GMT


Re: Re: Re: ClosedGL Graphics Library
George Limpert  Account Info

The OpenGL trademark, along with other trademarks, has to be taken seriously. Unlike patents and copyrights, you must defend your trademark or risk losing it. The owner of a trademark will lose his or her trademark if it becomes generic.

Reply to this comment    10 February 2005, 13:53 GMT


Re: Re: Re: Re: ClosedGL Graphics Library
CajunLuke  Account Info

Like aspirin.

Reply to this comment    10 February 2005, 20:00 GMT


Re: Re: Re: Re: Re: ClosedGL Graphics Library
Drantin  Account Info

and kleenex, xerox and a host of others...

Reply to this comment    15 February 2005, 05:31 GMT

Re: ClosedGL Graphics Library
David Phillips  Account Info
(Web Page)

Very nice! If anyone is interested in learning OpenGL for the PC, I recommend Python with PyOpenGL (see URL for this post), possibly along with Pygame.

Reply to this comment    3 February 2005, 16:28 GMT


[ ! ]
anykey  Account Info
(Web Page)

I'd do it, but I lack the math and PyGame knowledge. Right now I'm working on a project like TiReport (don't expect anything major until the summer!).

Reply to this comment    4 February 2005, 23:33 GMT

Re: ClosedGL Graphics Library
generationxyu  Account Info

> I don't plan on releasing the sourcecode so don't ask me for it.

What's this all about? I mean, the guy can do whatever he wants, but isn't it sort of an unspoken rule that calculator software is open source? I mean, no one's making money here, so what's the problem? He seems to be having problems moving from floating point to fixed point -- this sounds like something an open source team would be able to handle easily.

Reply to this comment    3 February 2005, 18:26 GMT

Re: Re: ClosedGL Graphics Library
DWedit  Account Info
(Web Page)

If you have a disassembler, all games are open source.

Reply to this comment    3 February 2005, 19:07 GMT

Re: Re: ClosedGL Graphics Library
benryves  Account Info
(Web Page)

Also, this is his project - maybe he doesn't want people to do the work for him? Maybe he's enjoying the fun of solving these problems himself?

Reply to this comment    3 February 2005, 20:14 GMT

Re: Re: ClosedGL Graphics Library
nicklaszlo Account Info
(Web Page)

Maybe he is planning on enterning the code in a competiton or something, and needs to be able to proove it was all written by him.

Reply to this comment    4 February 2005, 04:23 GMT


Re: Re: ClosedGL Graphics Library
Kevin Kofler Account Info
(Web Page)

And besides, closed source libraries really suck. You make yourself dependent on them by using them in your programs, and then a few years later TI releases a new hardware or OS version, or we release a new TIGCCLIB version with ABI changes (this has hit a few old static libraries which called _rowread using the old stack parameter ABI, whereas we changed to register parameters - note that we DO NOT guarantee binary compatibility for TIGCCLIB), the library doesn't work anymore, and you find out that the author isn't available to fix it anymore (or worse, that he has lost his source code - this happens way too often for projects released without source code, and is a good reason to release the source code: you can't lose it if it's mirrored all over the net).

Reply to this comment    4 February 2005, 17:31 GMT

Re: Re: Re: ClosedGL Graphics Library
nyall Account Info
(Web Page)

Additionally there are games I would like to recompile because they use old buggy fileIO routines that forgot to resize files properly on fclose.

Reply to this comment    5 February 2005, 19:41 GMT


Re: Re: Re: ClosedGL Graphics Library
Kevin Kofler Account Info
(Web Page)

Oh, and you also don't benefit from my compiler improvements if you don't have the source code. (See the Web Page link above for what I'm currently working on.)

Reply to this comment    9 February 2005, 05:55 GMT

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