Add one more competitor to the race to create the standard for web-delivered 3d. This time, it’s Google, with a new API called O3D.
It’s not compatible with Mozilla’s Khronos effort, but Google says they intend it to converge over the course of a few years. And yes, it is fully cross-platform. There’s a shader language (again, non-standard, doesn’t match HLSL or Cg), and of course it supports loading SketchUp as well as from Max and Maya. It also can run inside an OpenSocial gadget, or run offline in Gears.
It’s a developer release only, found here. But it’s very worth keeping an eye on. Google has to get it adopted, of course, and that will take using powerful distribution leverage, the way that Flash uses YouTube and Microsoft uses NetFlix and Windows Update to push Silverlight.
Here’s a video.