HDR Light Studio 3.5 works in realtime with Maya and IPR sessions of MentalRay, Arnold, Renderman...
HDR Light Studio 3.5 works in realtime with Maya and IPR sessions of MentalRay, Arnold, Renderman, V-Ray, Maxwell... this is all possible due to the new python api.
The provided python script can be amended to include other renderers and the functionality changed for different pipelines. The lighting design (HDR Light Studio project data) is embedded on a node in the Maya scene, so the final lighting HDRI ican be adjusted and re-rendered at anytime. This video provides an informal introduction to the new live connection and shows it in action with Maxwell, V-Ray and MentalRay (SprayTrace used for IPR in this case).
HDR Light Studio Live connection works in Maya on Windows 64bit, Mac and Linux
HDR Light Studio - more about HDR Light Studio