OpenGL Mac flickering

When using OpenGL mode on the Mac port the window rapidly flickers, sometimes flickering a single frame taken from the start of the level. The flickering slows down at lower resolutions. I'm using the late 2012 Mac Mini which uses the Intel HD 4000 mobile chipset.

It is interesting to note however that SRB2Mac will go to fullscreen mode in OpenGL but with the same flickering effects.

haha, OpenGL is not supported, not even for Macs (yea, I have the flickering issue as well), never did find what was making it do so, remember the old PowerPC builds did not do so.

You were right about the PowerPC version working. I guess I'll have to manage with it for now.