i am trying to render out blob mesh (particles) with refractive blinn shader in mental ray. (the blob mesh is emitting from an object and this object's primary visibility is switched off )
however i can not seem to get any passes associated to the contribution map of the layer. (i need basic passes - diffuse, refraction, reflection, opacity, matte)- its rendering the passes but black.
(other objects in the same scene are rendering fine apart from the particles.)
(with particles in the render layer) - the passes aren't there
(with no particles in the render layer) - the passes are there