Brought up several times in our forums and elsewhere over the past few days has been VMware's Gallium3D driver that they use for guest 3D acceleration on their proprietary virtualization platform.
Compared to Oracle's VM VirtualBox graphics acceleration support that is quite slow for OpenGL and often unreliable or the limited attempts at OpenGL QEMU acceleration, VMware has a rather nice acceleration architecture built atop Gallium3D. Using Gallium3D at the heart of their graphics driver implementation across platforms shouldn't be surprising though since they bought out Tungsten Graphics in late 2008 and its these Mesa / Gallium3D drivers now developing VMware's graphics stack.
gestalt_p5
Gestalt is an open structured environment, designed to prototype and develop OpenGL- and Java-based sketches and applications. It is also a library for the programming environment processing. Last update,
Espresso3D is a high performance real-time 3D engine for the Java(tm) programming language. E3D is not just a scene graph. It aims to be a complete solution for your application with OpenGL rendering, OpenAL audio, collision detection, input, and rendering support.
Espresso3D began as a free for non-commercial use library in October 2004. As of April 8, 2008 Espresso3D is available under the open source LGPL license.