Investigate OpenGL 3.0 or 2.0 support

TheJosh / chaotic-rage

An unusual zombie shooter game for Windows and Linux

GNU General Public License v2.0

35 stars 10 forks source link

Investigate OpenGL 3.0 or 2.0 support #86

Closed TheJosh closed 10 years ago

TheJosh commented 10 years ago

This is a continuation of the discussion on commit d4d51cb4.

There are a few questions:

Should we merge those changes
Can we document what is actually needed by the game
Can me make the engine behave properly when those extensions aren't available
Is it all possible without making the code a worse mess than it already is
Can a refactor actually make the render code better and support these new features
What about OpenGL 2.0

esper commented 10 years ago

Lately there seems to be a bit of progress made for OpenGL 3.x and 4.x the open source drivers, e.g. http://www.phoronix.com/scan.php?page=news_item&px=MTY1NzU which reference to this TODO list: http://cgit.freedesktop.org/mesa/mesa/tree/docs/GL3.txt

gmm42 commented 10 years ago

For what it's worth, if you decide to bother with OpenGL 3.0, I'd be happy to test it. :-)

esper commented 10 years ago

@igzivkov you could test the branch 'support_nouveau' which simply ignores the OpenGL 3.1 check and allows you to play with OpenGL 3.0. Or maybe you meant that you wanted to test after a proper support for OpenGL 3.0 (if it will happen).

gmm42 commented 10 years ago

Nah, I just wanted to run the game. I can confirm that the support_nouveau branch works with my ATI radeon card. Thanks!

TheJosh commented 10 years ago

I've tested on Intel integrated on my laptop and it works, so I've merged the support_nouveau branch.

TheJosh commented 10 years ago

Well we support 3.0 now (instead of 3.1 previously) so I'm happy. I think supporting 2.0 again is a step in the wrong direction, especially considering that those cards aren't getting any newer.

I've got another issue to investigate a deferred shader; this might require a more recent version of OpenGL (3.3 or 4.0)