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[Hedgehodg]

I am making the move from C# and Xna to C++ and Open GL. My issue is however, the lack of good tutorials I can find regarding Open GL. I've been following Nehe's Open GL tutorials, and am up to tutorial 10. I have managed to use SFML for windowing. However, I can't help but feel like I am doing something wrong. What ever happened to Vertex Buffer's DirectX equivalent in Open GL? Is there such a thing, Nehe's tutorials feel *so* outdated. Are they? I am assuming as much from the fact that he is using stuff like GLUT.

Are there any tutorials that are better then his? Any recommendations would be awesome, thanks

[zacaj]

Do you want to learn new opengl (3/4) or old opengl (2)? Nehes tutorials mostly cover gl1 and then transition into gl2. If you've got the basics from nehe you may be ready to try gl3/4. Search for arc synthesis or swift less opengl tutorials, they're the best known modern opengl guides.

[Hedgehodg]

Oh, cool, thanks What would be the best out of the two tutorials? I'm tempted to go with swiftless - it seems to go into further depth than arc synthesis...

[zacaj]

 I used the arc synthesis tutorials myself. They seemed to take a more basic approach (explaining lighting in theory first before implementing it, for example). I may be biased a bit because the swiftless Site didn't render correctly in my browser though

[Hedgehodg]

ahah, well seems to be the same problem with me (browser)... But in depth explanations on lighting sounds good And as you recomend that I'll give it a shot! (is it just me or does the code for gl 1 and gl 3/4 look very similar to each other?... Oh, and the arc synthesis tutorials appear to have been made more recently, so that's another reason to go with it I guess)

[kamac]

Ehm. There was already such thread (made by me!). You can find lots of links there (including nehe  ), for both OpenGL core profile (3.x) and quite modern OpenGL (~2.1 [which doesn't differ THAT much - is a bit easier I think]).

Link to the thread:

http://forums.tigsource.com/index.php?topic=24700.0


@EDIT

is it just me or does the code for gl 1 and gl 3/4 look very similar to each other?

They're all similar.  
Though, the higher version of OpenGL, the harder it seems to be. Myself, I've settled down with 2.1 since it works on many older computers, aswell as on new ones

[JakobProgsch]

New OpenGL is imho even simpler than "old style". But it requires that you actually understand the basic math etc behind it. The big plus of pure 3+ OGL is that its a lot more transparent... Way less hidden states to screw up etc. You don't have to ask stuff like "is the view position transformed to view space?" since you wrote the friggin shader yourself... :D

Also i'd like to once more shamelessly plug this: https://github.com/progschj/OpenGL-Examples

[Hedgehodg]

Okay, I'm up to chapter one on arc synthesis' tutorial. I'm finding it really interesting how he goes into how things are actually produced . I think I'll stick with his. Also, I really don't want to use premake, I hope I can just compile everything straight from code::blocks...

Also, I can run Opengl 3/4 code on my laptop? It has a intel GPU, the book suggests otherwise.   And I think I'll use SFML for windowing... FreeGLUT... ew...

[Hedgehodg]

Mmm, I think I'll *have* to use FreeGLUT, it seems like these tutorials rely on it...

[Hedgehodg]

Um... Okay, well when I setup the project with premake for codeblocks I get the following error in my output:

Code:

||=== Tut 01 Main, Debug ===|
..\glsdk\freeglut\include\GL\freeglut_std.h|60|warning: "NOMINMAX" redefined|
c:\program files (x86)\codeblocks\mingw\bin\..\lib\gcc\mingw32\4.4.1\include\c++\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
ld.exe||cannot find -lframeworkD|
||=== Build finished: 1 errors, 2 warnings ===|

[Hedgehodg]

Ehm. There was already such thread (made by me!). You can find lots of links there (including nehe  ), for both OpenGL core profile (3.x) and quite modern OpenGL (~2.1 [which doesn't differ THAT much - is a bit easier I think]).

Link to the thread:

http://forums.tigsource.com/index.php?topic=24700.0


@EDIT

is it just me or does the code for gl 1 and gl 3/4 look very similar to each other?

They're all similar. 
Though, the higher version of OpenGL, the harder it seems to be. Myself, I've settled down with 2.1 since it works on many older computers, aswell as on new ones

Which tutorial on Open GL 2.1 did you go for? Since, one of my main reasons for learning C++/Open GL is to be able to run my stuff on my laptop which has an Intel GPU But if I have to go for Open GL 3/4 and I am able to resolve my issue that would be just as good

[Polly]

Also, I can run Opengl 3/4 code on my laptop?

You could use a tool like GPU Caps Viewer to check which OpenGL version is supported by your system.