How to rasterize a Graphics3D expression into an Image3D? [duplicate]

I'd like to make a 3d image from a 3d graphics. Unfortunately Rasterize@Graphics3D[Sphere[]] gives a 2d image, is there any function like a Rasterize3D that does this?

• Which method of Stereoscopy do you want to use? – rhermans Aug 20 '15 at 15:21
• @rhermans I'm confused, why is any stereoscopy necessary to generate an Image3D object? – M.R. Aug 20 '15 at 16:18
• My confusion, I thought you wanted a flat 2D image not an Image3D object. Something like a color anaglyph (red/blue glases) or a stereogram that you haven't specified. My mistake for trying to think about more than one thing at the time. – rhermans Aug 20 '15 at 16:24
• good question , but I think the answer is hold your breath for wolfram to implement rasterize3d. (assuming you need a general solution.. if your graphics3d contains only simple objects there may be ways) – george2079 Aug 20 '15 at 16:57
• toot – chuy Aug 20 '15 at 17:59