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Re: OpenGL Core Profile 3.2+
Posted: Wed Mar 12, 2014 3:28 am
by devsh
its been in since 1.7.3
Re: OpenGL Core Profile 3.2+
Posted: Wed Mar 12, 2014 4:39 am
by Mars_999
Okay but do you have an example to look at? I was under the assumption Irrlicht didn't have support for GL3.2 yet? So how are you using the GS without a GL 3.2 context?
Also I need to be able to calculate the normals in the GS, from what I read you need to have adjacent info available? Is this working also?
Thanks!
Re: OpenGL Core Profile 3.2+
Posted: Wed Mar 12, 2014 6:19 am
by devsh
For the geometry shader to be adjacency info aware.. it only takes a one-liner (add primitive type EPT_ADJACENCY_TRIANGLE and handle the cases in the draw functions)
HOWEVER...
you actually need to provide the adjacency info, OpenGL wont do it magically for you, you need to index the vertices in the way that the OpenGL 3.3 spec says geom shader expects them to be indexed
Re: OpenGL Core Profile 3.2+
Posted: Fri Mar 21, 2014 2:49 pm
by ent1ty
Guess this topic will have to do... have you guys seen this?
http://blogs.nvidia.com/blog/2014/03/20/opengl-gdc2014/
I haven't really read through it and honestly, raw opengl isn't making that much sense to me, but definitely looks interesting.
The paper seems to be about GL 4.2+ so perhaps it could help with implementing the next opengl driver
Re: OpenGL Core Profile 3.2+
Posted: Sun Mar 30, 2014 12:27 pm
by devsh
raw openGL is very useful to know