Could anyone point me to a good tutorial that covers material layer masking and compositing? see https://www.sidefx.com/forum/topic/82434/?page=1#post-354363 [www.sidefx.com] for the issue. One thing I cannot figure out is how to add a normal texture to a shader by connecting nodes. (I know how to do it by clicking on the bump/normal tab of the shader itself and selecting a texture, but that does not allow masking). My only workaround is to create a black and white jpg mask and then connect it via a convert to the normal scale node (see attachment). The actual normal texture is defined in the principle shader itself, not by nodes. It seems a cludge.
Thanks.