Hi,

I would like to do a bit of OpenGL in Pharo, but it does not seem to work at 
the moment.

Tried NBOpenGL with a spur image (50560):
_ fails at installation from configuration browser (need to click again on 
installing to get all classes)
_ demo "GLTTRenderingDemo new openInWorld" fails at NBGLContextDriver with 
error "No suitable implementation found for initializing OpenGL context for 
your platform" (running on a Mac)

Tried with a pre-spur image (50496):
_ same weirdness at installation
_ demo fails at NBGLCurveRenderer with "MessageNotUnderstood: receiver of on: 
is nil"

Is there a working demo available out there? I have worked a lot with OpenGL ES 
2.0 and could definitely provide work on the topic.

Cheers,
Thibault

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