We have written frequently about 3d Mesh Import in Second Life. The Collada file format would be supported allowing for complex 3d Creation Tools such as Maya, 3D Studio Max, or Blender to be used to create and import directly into Second Life.
This feature is currently in closed beta testing with the Non Disclosure Agreement just recently lifted. The open beta test for 3d Mesh Import will be coming to Second Life soon.
Below are 6 high definition videos showing off 3d mesh import. They vary in length from one to two minutes long. Check it out below.
3d Mesh Import in Second Life HD Video:
Designing Avatars with 3d Mesh Import HD Video:
HD Machinima Videos Featuring Mesh Imports:
Read more here.