> Quote - The '**material zones**' are part of the geometry, and the geometry is usually stored in an **obj** file, thought it can also be stored in a 'library' file (eg cr2, pp2, hr2) as a '**geomCustom**' section. The sections of the geometry that define a '**material zone**' start with the word '**usemtl**', and this is followed by the name of the material, next comes a line that names the 'group' (**g**) that the zone belongs to, and that is followed by a line or lines that defines which facets comprise the material zone. > > The *settings* for a material (as opposed to the material zone) are stored in the 'library' file as '**material**' sections. When you delete a '**material**' section from a library file, if the '**usemtl**' section still exists in the geometry, Poser will create a new '**material**' section for that zone the next time the library file is loaded. > > To delete a '**material zone**' you need to delete the '**usemtl**' section for that material from the geometry (obj, or geomCustom). You do that in a text editor or cr2 editor. For the sake of tidiness you should also delete the '**material**' section from the library file. > > The above is given as information for anyone who wants to delete a material. **I am *not* suggesting that you should delete materials in you particular circumstance**. Most of the time, the easiest way to achieve whatever aim you have in relation to materials, is change the material settings. > > Poser will always load a material named 'Preview', even if no material zones are defined in the obj.

 

actually,

I attach some images to see what kind of material I need.