Hello all, as Gazebo 1.9 can be used with Bullet engine 2.8 (http://gazebosim.org/w/index.php?title=Tutorials/1.9/bullet) and this version should support some physics acceleration on GPU (http://bulletphysics.org/wordpress/?p=340) is there any way how to benefit from GPU acceleration in simulator? Is there any flag or something to enable it or will it require some significant update of Gazebo code?