multi displacement problems

[unleashed]

So ive been trying to get a multi displacement going in vray(for maya) and I cant seem to get it to work.

ive pretty much been using http://uppix.net/4/a/2/38980c8bcb2cc...8902d7247d.png as my network. Now I know how to setup displacement with a single image map, and I had the above mentioned setup work seemingly fine in mentalray however with the above, vray doesnt take in the alpha gain/offset info and everything turns to marshmallow puffiness.

one texture mapped into the network works fine.
this is a file1--displacement node--shadinggroup
http://uppix.net/d/e/e/0e44cdb97a433...de4b836a22.png

two however ignore the offset/gain
file1---\
----plus/minusaverage----displacement node---shadinggroup
file2---/

note ive tried mixing it up, including the luminance after displacement, before displacement, having two displacement nodes go into a plusminusaverage etc changing the plusminusaverage to average instead of sum but nothing works
http://uppix.net/f/5/7/8110c73b56aca...c98ee5ab2a.png

using 32bit from zbrush doesnt seem to work at all in vray(the right side is 32bit, left is 16bit)
http://uppix.net/d/0/8/608d39e08cd0a...58d44f6d4e.png

any suggestions? I just tried assigning two materials to both sides of the head, only the first assigned material seemed to work. Does the maya version just not work with multiple displacements(ive searched and seems like its worked for max)?

[unleashed]

false alarm, sorry setting the shift to -1 makes it look right. not really sure why it should be set to negative one but for a still image this works.

[dremer1128]

I've been having this same exact problem. My displacement works with a single image, but when I try to combine them, it blows up and gets all puffy.

Could you tell me where you change the shift to -1? If it's in the shape node of the geometry, then it's not working for me, but maybe I'm missing something.