Geometry Shader support in Mesa i965 DRI for Intel SandyBridge Hardware

Question

However, I get the error as "needs GL_ARB_geometry_shader4 extension".

I am not that up to date with how the Mesa development is going on, but it seems that GL_ARB_geometry_shader4 extension is not available for Mesa?

As per this link: http://lists.freedesktop.org/archives/mesa-dev/2014-August/065692.html, it shows Geometry Shader support has been added to Intel SandyBridge platform.

I also came across this link: http://dri.freedesktop.org/wiki/MissingFunctionality/, which indicates that the GL_ARB_geometry_shader4 extension is a "Missing Functionality".

Considering all of this, how should I proceed to write my applications with geometry shaders using Mesa?

score 1 · Accepted Answer · answered Mar 18 '15 at 06:23

1

I believe this extension is only supported on Nvidia GPU's which is why you can't use it

Edit : You don't need this extension to use Geometry Shaders. The example here

Should work perfectly fine on intel GPU's

answered Mar 18 '15 at 06:23

abcdef

If it were only an Nvidia extension, then it would have been named GL_NV_geometry_shader4 isn't it? The reason it is ARB "blessed" is that it can be used for other GPUs also. – Yusuf Husainy Mar 18 '15 at 06:26
This extension was approved before it became core. See the URL attached. https://www.opengl.org/wiki/Geometry_Shader_Examples. – abcdef Mar 18 '15 at 06:28

1 Answers1