How to Plug-In Bump2d to Mia_Material

Image from http://forums.cgsociety.org/showthread.php?f=87&t=422814&page=6&pp=15

This really took me awhile to get it~

Because u can see there is no direct way to do Bump with Mia_Material

Here is the trick:

1. plug a misss_set_normal node into the bump slot ( Connect miss_set_normal.message with mia_material.bump)

2. plug in the usual maya bump2d/3d(and link ur bump map like usual) nodes into the normal vector slot of the miss_set_normal node

hope it helps to ease ur pain too :D

How to stack or cascade multiple bump maps(Layer Bump)?

I have been looking for this method for so long. And finally today found it! I realized that the Key Word is very important (the key words are in this blog title)!!!

Video Tutorial:
http://www.cgsutra.com/quicktuts/maya/qtm0003_multiple_bump_maps/qtm0003.php

The description is written here:
http://www.tutorialized.com/view/tutorial/How-to-attach-multiple-bump-nodes-to-an-object-in-Maya/33267