The open sourcing of C and C++ libraries in CG is awesome. But that is skewing the original point. Studios aren't going to replace their interfaces with blender and they aren't going to open source their own creation software. Most studios use a combination of maya, katana, 3ds, houdini and vray.
What you listed are mostly formats that are beneficial to everyone to share (and don't forget OpenExr). OpenSubdiv lets others match renderman's subdivision. Also Imageworks' open source push can largely be traced back to Rob Bredow I believe.
What you listed are mostly formats that are beneficial to everyone to share (and don't forget OpenExr). OpenSubdiv lets others match renderman's subdivision. Also Imageworks' open source push can largely be traced back to Rob Bredow I believe.