I cant understand why using normal maps in houdini never gives me a desired result,all shading dissapears leaving me with a toon style cel shading render,has anyone ever used normal maps from z brush?(in all other apps they worl perfectly)

Unfortunately Houdini doesn't natively support Zbrush tangent space normals maps. Take a look on the Exchange, I think someone put something up there to help…

Have you checked out Peter Quinn's zbrush tutorial?

http://vimeo.com/channels/54102 [vimeo.com]

Bowmar…..thanx for the heads up…..
Gray…..the link u posted sends me to a symetry tutorial….let me look for a zbrush one,but i would appreciate anothe link

Sorry about that! Try this

http://vimeo.com/m/22488816 [vimeo.com]

The shader in exchange is perfect,when used in h10,it supports tangent maps,…BUT it wont work in h11 : (
Anyone have a solution?