xNormal - Multiple Objs and UV mismatch

rodpv

Hi guys.
I'll leave you with this technical challenge hopefully somebody is so kind to offer wisdom.

I have a big weapon composed of a fairly high number of elements and overlapping geometry.
The highpoly version is composed of multiple smaller objects detailed in Zbrush.
The lowpoly, retopoed, uvd version in Max, is the whole weapon composed of the same objects but all attached into one mesh.

I'm baking maps in xNormal.
Usually I explode both high and low-poly to have a clean bake but I can't do this with this piece.

So as another, lengthy solution I thought I could bake every single high poly piece to the big lowpoly piece.
The problem is that when I do that xNormal basically scatters a bunch of pixels seemingly randomly and doesn't occupy the correct UV space.

If I instead project a single highpoly piece to the corresponding lowpoly piece it bakes perfectly. Obviously I can't do that because the whole thing is about a 70 objects and it would be terribly time consuming.

PS I'm using the ray distance calculator instead of external cage.

Any thoughts?
thanks!

MmAaXx

try to bake in other software and check if you have the same problem, also try wit ha cage.
 I love cages.

rodpv

Thanks Mmaaxx. I've decided to go for the lenghty route and exploded all the pieces and also baked them with a cage. 
It took care of everything.