"a rendering engine that is more like Lightwave, 3D Studio MAX or Maya" No, 3Delight follows a completely different approach (REYES) than the renderers you mention. While the REYES algorigthm certainly has its advantages like mostly superior subdivisions, displacements and very fast motion blur, it is not very efficient at ray tracing and other global illumination features. You can find a good explanation of the differences here, many of the things this article writes about PRMan are valid for 3Delight too (major exceptions are speed and global illumination - 3Delight lacks here compared to PRMan): http://www.zaon.org/showthread.php?threadid=299