http://www.zwsoft.com/forum/viewthread.php?tid=2029 1. For 3D part enviroment, we also go to Attribute > Material to set the different material, but sometimes, there are a little confused thing you need to notice. When you make modification for Attribute > Material, it can't affect the columns of Material, such as shown as below [attach]200[/attach] Because this Setting isn't for the whole part but for multi entities, so when you go to Attribute > Material, you can see that the Entity option is "available", it means that you can select different shape/geometry to define the material, so that you can inquiry the quality or density and so on. But If I just want to change the whole part material, how to do that. In face, you can Use "Attibute > Part >Material folder" to set the material. [attach]202[/attach] And this time you can see the Entity option is "unavailable", it means that the setting is for overall situation (Whole part) [img]http://www.zwsoft.com/forum/attachments/month_1203/12031311175e770a4037b6ef6a.jpg[/img] William_ZW3D 2012-03-13 11:19:09