APEX Turbulence is available in APEX 1.2. and above and can be integrated into any game engines. For UE3 users, we provide a UE3 Turbulence patch to enable this feature for the July 2012 QA. If you are interested in this feature, please email us at apex-beta@nvidia.com.
We will be providing a standalone authoring tool for APEX Turbulence shortly.