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Tancients

OpenGL Getting Started with OpenGL Have ?'s

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I heard that OpenGL has the highest amount of portibility, meaning that only small tweaks are needed to make it work on Linux and WIndows, while DirectX would only be Windows based. By picking up OpenGL, it will save much work for porting, by keeping it with one graphical library, correct? Also, I know C++, but C better, and would like book reccommendations for learning OpenGL as well as good online tutorials and guides. I learned a little OpenGL about ten years ago, but I'm sure its changed quite a bit since then. Thanks in advance for your help. [edited by - Tancients on March 6, 2003 12:33:56 PM]

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You''re coorect about the portability issue. DX will only run on windows while OpenGL is portable to linux, Mac etc...

For tutorials, check out NeHe
This is THE site for OpenGL related tutorials. Also Gametutorials has a bunch of nice tutorials.

For Books I''d recommend either: OpenGL game programming or OpenGL Programming guide a.k.a. The RedBook
The first is very nice to get started, but it uses the Win32 API for the Window generation and Input handling.
Whereas the Redbook uses Glut as far as I know. Glut (OpenGL Utility Toolkit) is a library which allows you to run you''re OpenGL application on windows and linux. Basically, you tell glut to create a window, and depending on which OS you''re on, it will call the respective functions for you.

Anyway, both are great books to get.

btw: the RedBook is available online. Google for it. You''ll certainly find it somewhere.

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Wanna know my OpenGL story???I wanted to learn OpenGL ever since i saw that MFC cube tutorial in VC++ samples.I then started to search the net for tutorials and suddently i found that very old and very good tutorial that renders a piramid and the user can rotate it using the mouse.I think that it still exist somewhere in the GAMEDEV articles section and it also can be found in the OpenGL.org''s tutorial page.I rewrited that tutorial about 100 times without actually to know how stuff works.Than i find the VERY VERY COOL site of Nehe(http://nehe.gamedev.net) which gave me more tutorials which was commented so i was able to understand some things.The last thing i did was to go on www.gametutorials.com where the tutorials of DigiBen teached me a lot of complex OpenGL stuff.This is it but i''m proud with it.And for the books i recomend to start with OpenGL SuperBible or OpenGL Red/Blue books cause they are very good and will tell you all about the basics and even show you some advanced tricks.You can then move to OpenGL game programming which is also superb.

All i can say after this is that the lazy people and all these drug and other scumm can''t say that there aren''t OpenGL materials on net cause there are plenty of stuff...FOR EVERYONE

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jepp. OpenGL runs everywhere. I''m here on linux, and to recompile a source in windows (using devcpp and gcc-3.2) i don''t have to change one char in my sources. same is for a friend of mine coding on a apple.
...
for documentation i (also) recommend the "OpenGL Programming Guide", which is also availible on the net at http://www.ime.usp.br/~massaro/opengl/redbook/ .
nehe and romka (romka.demonews.com, but i think it doesn''t exist any longer) also offer some quite cool tutorials. if you''re looking for newer ones, look through the news of www.opengl.org...

OpenGL itself hasn''t changed since it''s release. there have been extentions. nothing more. you dont have to know the extentions to write nice programms (although some of them are quite usefull).

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