Poser has the ability to render in LuxRender using the Poser Lux render plugin

http://www.luxrender.net/en_GB/poser

 

in Daz Studio LuxRender can only be utilized by either the Reality plugin to the DSLuxRender plugin. I know Daz Studio likes to show promos of DS4 renders that were rendered in Lux, and never any mention that these were done in LuxRender even though at this time DS4 does not have the ability to send a render to LuxRender. The workaround is first converting the scene to an .OBJ and then importing the .OBJ back to DS3.

The Reality and DSLuxRender plugins both do not work in DS4 and until the SDK is released rendering out of DS4 Std or Adv is strictly a 3Delight affair and Studio does not have the ability to use full potential of 3Delight.