Hi list,
cyrille henry wrote:
thanks to nvidia profiling tools, Nicolas pointed that gem is limited to 50% usage of the GPU. there is certainly a limitation somewhere on osX preventing application to use full performance of the hardware.
It would be interresting to see if proprietary software runs better.
In the blender osx faq :
How can I get Blender running faster?
OSX Aqua uses OpenGL extensively for drawing, so it might happen your 3d card doesn't have sufficient memory to draw accellerated with a larger window size. A solution that works well, is switching to less screen colors: set the menu in "System Preferences -> Displays -> colors" at "thousands of colors".
Another common issue is with using the Dock on top of the Blender window. This kind of transparent blending takes a lot of 3d card drawing powers, and can better be avoided by setting the Dock to become auto-hide.