You must have objects selected 翻译过来就是 “你必须有物体被选择”，如果你在使用 Box Selected 时没有选择任何物体就会弹出这个提示了。
右击，属性，VR属性，看看是不是有个什么按钮，渲染可选对象，去掉
You should do the same as How to set a value to a row. How to set up the options to a selector row. XLForm has several types of selectors rows. Almost all of them need to know which are the values to be selected. For a particular XLFormRowDescriptor instance you specify these val...
however it causes V-Ray to load the entire mesh at once, which might slow down the rendering if the dynamic memory limit is close to being reached. If you intend to use the V-Ray proxy as a geometry cache for characters or other relatively small objects, enabling this option will improve...
Here, you have a MultiSubTex map with four sub-textures whose interval of valid IDs is [1 - 4]. You also have five geometries whose IDs range from 1 to 6. The IDs of the first four geometries fall within the texture's interval. The fifth geometry's ID (6) is outside that interval...
However, it requires that the object has valid UV coordinates. You cannot use this method for 3D procedural textures or other textures that use object or world coordinates. The displacement map can take any values.3D mapping –A general method which takes the original surface geometry and ...
In the middle image below you can see the edge splits produced by disjoint normals. Using the Keep continuity option avoids this problem. This option also helps to produce a smoother result across material ID boundaries for objects that have been assigned Multi-Sub-Object materials....