mayaToLux is an interface for the open source renderer lux. It is based on the great prbt from Matt Pharr and Greg Humphreys. Meanwhile it has a lot of new and efficient extensions. I'll try to create a plugin for maya for this great renderer. I was able to start with a windows implementation of the plugin and it seems to work. Only a few features are supported until now, but it is a start.
There is a extremly good support from the developers, thans to all of them.
I have not packed the package into a download yet, but I think it will follow in one or two weeks.
The sources are available as usual on github. Google group for discussion of the mayaToLux plugin can be found here.