NeHe OpenGL tutorial

[Master of Gizmo]

I have just uploaded version 1.2 of nehegles (http://msaemo.org/packages/view/nehegles/) to extras-devel. This is a port of the nice OpenGL tutorial from http://nehe.gamedev.net/ to Maemo5/OpenGL ES/SDL_gles. It includes some simple gui and lets you test run the different lesson code.

Currently included are lessons 01-08 and i plan to continue this whenever time allows to. However, contributions are welcome.

I do this in the hope that it will give the development of native OpenGL ES applications for Maemo a little push. With Javier's great SDL_gles library development of OpenGL ES apps really is a snap.

[Master of Gizmo]

Since noone can check this out (unless he has PR1.2 installed) here are some screenshots (Update, the repository seems to be fixed and the program now is installable):

http://www.harbaum.org/nehegles.png

http://www.harbaum.org/lesson08.png

http://www.harbaum.org/lesson11.png

The latest version 1.4 now includes the first 20 lessons except the ones dealing with fonts as i don't know how to so this in Open GL ES.

[BluesLee]

i can only run demos 1-5, the other dont work for me. any hints?


Blues

[Master of Gizmo]

i can only run demos 1-5, the other dont work for me. any hints?


Version 1.4.1 fixes this. You should now be able to run all of them.

[Master of Gizmo]

Version 1.4.1 is now in extras-testing, so if you like it consider rating it (http://maemo.org/packages/package_instance/view/fremantle_extras-testing_free_armel/nehegles/1.4.1/) so it can go into extras for everyone to enjoy. And yes, it's fully optified.

[skaiware]

Hello Master of Gizmo
Thanks very much. Very nice work. Hoping you will complete all the tuts. If I can do anything for you, just ask.

Just to be sure :
- all the tutorials have been implemented with GLES 1, isnt it ?
- if I understand right, porting the tuts to GLES2 would need deep rewrite, isnt it ?
- if so, do you think GLES2 fps would be very higher than GLES1 fps (say around 2 times faster) ?
- is there a way to display fps in the demos ?

Best regards

[Master of Gizmo]

Hoping you will complete all the tuts. If I can do anything for you, just ask.

I'll gladly accept any contribution. If you port a lesson, i'll add it immediately.


Just to be sure :
- all the tutorials have been implemented with GLES 1, isnt it ?
- if I understand right, porting the tuts to GLES2 would need deep rewrite, isnt it ?
- if so, do you think GLES2 fps would be very higher than GLES1 fps (say around 2 times faster) ?
- is there a way to display fps in the demos ?


- Yes, i have been using gles1
- The gles2 api seems to differ more and would require more changes. But i am definitely no gles specialist.
- I don't know
- You can run them from the command line (e.g. /opt/nehegles/lesson10 runs demo 10). You'll then get a fps display on the command line. But all the demos run roughly the same speed. If they use the depth buffer they run at ~50fps, if they don't use it they run at ~90fps.

Also if you port any of the existing demos to gles2, i'd really like to add it as well. It might be quite interesting to have a gles1 and gles2 version of the same lesson.