LuxRender is a physically based, unbiased rendering engine. Released as free software and tightly integrated in Blender, LuxRender is actively maintained and developed. The two most popular ways of creating the native file format (.lxs) are from Blender or from Daz Studio using the Reality plugin
As with the majority of the unbiased engines, rendering speed remains a challenge. Rendering a high quality, clean image can take a long time when using consumer hardware. RenderStreet helps solve this issue and shortens the delivery times significantly, both for LuxRender still images and animations.