Material
材质
材质
Materials and texture paths in OBJ format will be defined in a separate file (*.mtl). Use this setting to define if and how materials should be exported. Only UV projections will be exported. Since the OBJ and Cinema 4D material systems cannot be transferred to one another loss-free, it is often sufficient to export only material assignments (but not the material itself) using the Export Name and Default option and then replace the materials in the application used to render the scene with better/adapted materials.
OBJ 格式的材质和纹理路径将在一个单独的文件中定义(*)。Mtl).使用此设置来定义是否以及如何导出材质。只有紫外线投影将出口。由于 OBJ 和 Cinema 4D 材质系统不能相互转移到另一个无损耗的系统，通常只需使用出口名称和缺省选项出口材质分配(而不是材质本身) ，然后用更好/改编的材质替换应用程序中用于渲染场景的材质即可。
The following options are available:
以下方案可供选择:
没有材质
No *.mtl file will be exported.
将导出 No * . mtl 文件。
导出名称和默认值
All existing material assignments will be maintained and the materials themselves will be replaced by preset materials (either White or Random Colors, as defined in the Default Material setting)
所有现有的材质分配将得到维护，材质本身将被预设的材质(白色或随机颜色，在默认材质设置中定义)所取代
出口材质
If this option is selected, selected materials and those assigned to polygonal objects will be "translated" and exported as defined in Cinema 4D.
如果选择此选项，选定的材质和分配给多边形物体的材质将被“翻译” ，并按照 Cinema 4D 中的定义输出。
Tip: 提示:默认材质
Use these options to define which colors should be assigned to exported materials as default materials:
使用这些选项来定义应该将哪些颜色分配给作为默认材质的导出材质:
转换透明度
It can occur that an application outputs transparencies differently. If this option is enabled, the Transparency value will be inverted (if 95% is defined in the OBJ file, Cinema 4D will define 5%). With this option disabled, 95% will also be defined in the Transparency channel.
应用程序输出的透明度可能不同。如果启用此选项，透明度值将被反转(如果在 OBJ 文件中定义了95% ，Cinema 4D 将定义5%)。禁用此选项后，95% 也将在透明度通道中定义。