I'm creating some custom utility/shading nodes for maya with the python API, and they tend to only get computed by the Software and Hardware renderer. 'External' renderers like mentalRay, vray and 3delight are just ignoring them. Does someone have any idea if there is some special declaration or anything which should be included in the node code, so they get recognized? Python or C++ examples are both usefull.
Just to clarify some things: * Maya 2001 SP 1 running on CentOs 5
* The nodes derive from MPxNode
* They return colors or MFloatVectors
* Other thing is that I compiled a C++ example node called flame.cpp and it doesn't work either ( same thing with the *.py shading node examples)