OK, I always liked Maya, but when I've met Houdini 8, I was aghasted. Not because of 'winning awards' or great performance, but it has some magic- I can't explain!
So, the first distress was (the reason of this topic) attempt of use the both famous renderers(RenderMan&MentalRay) - I thought you can easy accede to their operations(like in Maya), but it seems to be a little complicate(I tryed things such as env.variables, but no effect) - so I started to believe that I need to have both renderers installed externaly as a standalone aplications, so that can be used.
I wish I had the wrong impression about this thing, so if somebody can help, please reply (it would be a pity using a Houdini and not be able to use these renderers)!