What version of opengl does glboom/prboom+ require?

I can't find anything online that specifies a version, so I'm guessing it never got to the stage of needing newer and newer cards, unlike GZ?

39 minutes ago, invictius said:

anything online that specifies a version

https://github.com/coelckers/prboom-plus/blob/217f4bc9f7b7d9fb97d907f73dda75d519d617de/prboom2/src/gl_opengl.c#L433

So it seems it offers a compatibility mode for really ancient GPUs.

1 hour ago, DoomeroHispalense said:

 

https://github.com/coelckers/prboom-plus/blob/217f4bc9f7b7d9fb97d907f73dda75d519d617de/prboom2/src/gl_opengl.c#L433

 

So it seems it offers a compatibility mode for really ancient GPUs.

Thanks, how about risen3d?  Info about the port is pretty scarce outside of their site, and even on it they don't mention a whole lot.

15 hours ago, invictius said:

 

Thanks, how about risen3d? 

Did you read this ? ...

http://risen3d.drdteam.org/faq.htm

That page doesn't say anything about the OpenGL version the engine requires.

I guess it's 1.3. That old doomsday version's docs should clarify it.