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So, I have a partition with my object in it. I was to do an incidence pass by overriding the surface of the material.

Here's the SSS material I'm overriding


Here's where I am thus far:



The partition has a material override and I plugged the incidence into the surface. My question is: How do I disable the lightmap it's writing? I'f im doing a quick/simple incidence pass I don't want it spitting out lightmaps while it does it. Typically I've just duplicated the shader/got rid of the lightmapwrite/threw it on the object's partition but I was wondering if there was a way to do it with override since it would save tons of time for me rather than duplicating and tweaking individual shaders for each object.

An override won't work AFAIK, you could however assign your render pass its very own local Mental Ray and disable the creation of lightmaps in the local render options.
;)

OH...... haha. Never thought of that, yup, that worked perfect and now my render is nice and fast! Thanks so much!