I still am new to Mental Ray no doubt, but hearing all the good things about Vray it does makes me wonder.i guess it all depends on what you think Vray will give you that mental ray doesn't?
You have a point there and I agree.you can do that in mental ray tho....
I'm sure vray is fast, but you still need to know what you are doing. if you turn on all the bells and whistles in vray it will be slow. similarly for mental ray.
yeah, i wasn't talking about IPR. Perhaps knowing a bit more about mental ray is your cheaper/better alternative.
Besides, are you rendering passes and compositing? or do you just rely on a primary render from maya? This is all dependent on your workflow/pipeline.
I render in mental ray/renderman and output passes which are comped in Nuke. This is the process and it'll take a similar amount of time regardless of the renderer. So for me the difference is, do i want 3D motion blur or vector blur? can i raytrace shadows? can i render with displacement or do i have to use bump? how much memory are my frames using. etc etc
so in a way it makes no difference.