An abstract 3D render made with Blender 2.72. It was created to test the then-new volume rendering feature. The Icosphere in the center is a volume emitter mixed with a glass shader. This is on top of a glossy/diffuse mixed-material plane. Background image courtesy of the NASA/ESA (Public Domain, no attribution requested, just to be kind).
Note: the background is the only light source and uses a multiply function based on the image to increase contrast by using it to control intensity.
