You can now preview mental ray rendering interactively in 3dsMax: camera navigation, adjustments to light and material parameters, and object creation are immediately reflected in the ActiveShade window using mental ray. The rendering provides an accurate look overtime – just as what you will get in the final frame.
mental ray takes advantage of the ActiveShade improvements that are released with 3dsMax 2015: Many changes are captured more frequently offering finer grain updates. These changes include: viewport navigation, switching between viewports, adjustments to light parameters, and certain other scene changes (Creating, moving, or deleting objects).
Pascal[vimeo 94391571 w=800 h=600]