The dependency packages on SourceForge were updated yesterday with the OpenSceneGraph 3.4 release, in addition we have integrated a fork of Bullet 2.83.x that adds support for multithreading. We have been doing a lot of work with the Dreamworks Open Voxel Database (OpenVDB). We will soon be adding Threading Building Blocks (TBB), OpenEXR, and OpenVDB to all the dependency packages along with some new examples on how to use them. For VS 2013 users who did not have GDAL in the last dependency package that problem is resolved and PAL has been updated to the latest trunk version with improvements to performance, joints, and motors.
Precompiled packages of the updated dependencies for various platforms will be uploaded gradually over the next few days.
There are completed OS X dependencies, but there is a major bug with precompiled mipmaps in textures in OpenSceneGraph > ~3.3.7. I can make all the the delta3d examples work by modifying the DDS and IVE plugins to throw away the MipMaps, but I'm going to wait a bit longer to see there is another solution.