Photoshop CC 2015 delivered new options to create bump and normal maps, and reduce the poly count of 3D models.
The ability to generate bump and normal maps from source images, introduced in CC 2014, has been extended with a proper 3D preview, plus slider controls for Blur and Detail Scale and a histogram for detail frequency. There is also a new Simplify Meshes command, which launches a simple, slider-based interface for reducing the poly count of a 3D model. In addition, the Healing and Spot Healing brushes and Patch tool are GPU-accelerated via the Mercury Graphics Engine, and are now “up to 120 times faster” than CS6.
Full list of features you can check here