Why my proxy is transparent in vray rhino?

This can lead to theВ surfaceВ normal, which is the direction perpendicular to the surface,В pointing inward, or away from the direction that you need the surfaceВ to be viewed. When working in your design tool, you may not always be aware of the facing direction of a given surface. However, some design applications do not make the same distinction between the front and back faces of a surface, and may render surfaces regardless of which side you view them from. This is called back-face culling, and it's an optimization technique that is used extensively in 3D rendering. Any triangles that face away from the camera are assumed to beВ the back side of that object, and will be hidden from view by the front side of the object. In particular, the EngineВ assumes that all objects have a thickness. This avoids spending anyВ GPU cycles toВ render those triangles. In order to achieve the best possible performance at runtime, Unreal EngineВ culls anyВ triangles that it doesn't expect to be visible. However, if you want to use Blueprint or Python scripting to work with your Assets or your Datasmith Scene, you may need to be aware of this distinction.

Note that there is a distinction between the labels that you see for Static MeshВ Assets in the Content Browser, and the names of the files Datasmith generates for thoseВ Assets on disk.В This should be transparent for most purposes while you're working in the Editor. If another Actor already exists in the Level with that name, Datasmith makes the Actor name unique by incrementingВ a numeric suffix.ДЇor example, in the image below, you can see that all names from the source scene are brought in to Unreal as-is, except where multiple objects have the same name. If it can't find a unique name, it reuses theВ sameВ label from the Content BrowserВ to name the Actor. Therefore, Datasmith names each AssetВ fileВ using a unique identifier that it extracts from the source application.ДЄctor name -В Each timeВ Datasmith placesВ anВ Actor into a Level, it tries to give that ActorВ exactlyВ the same name the corresponding objectВ had in your source file, if any.

If this is the case in your scene, you may find that several Assets in the Content Browser end up withВ the same label.ДЇilename -В However, the file name of each Asset on diskВ needs to be unique. Some supported applications and file formats allow multiple objects to existВ with the same name. Names and LabelsДatasmith detects naming information about the geometryВ inВ your source application, and reuses this information as much as possibleВ for the Assets and Actors thatВ it creates.В The exact process is a littleВ different for each different application or file format, and the results in theВ Unreal Engine may be slightly different from your source application,В but the ultimateВ goal is to make it possible for you to find and manage yourВ content after import.ДЇor Static Meshes, you'll see that the name of the AssetВ in the Content Browser, the filename of the AssetВ on disk, and the name of the Actor in the Level are often different.Д¬ontent Browser label -В Datasmith generatesВ the label for each Static Mesh Asset in the Content BrowserВ based on the naming information it findsВ in yourВ source file, if any.

If you encounter this problem, you may be able to solve it by returning to your original scene and simplifying the transforms in your scene hierarchy.

When a scene hierarchy contains parents with non-uniform scales and custom pivot transforms that are compensated for at the level of individual objects, the complexity of the coordinate system conversions can make the results in Unreal Engine not match your initial scene. You don't have to change anything about the way you work in your source application.ДЇor example, if you use inches as the unit of measurement in your source application, an object that is ten units long in your original scene becomes 25.4 worldВ units long in the Unreal Engine. However, other 3D design applications typically offer a choice ofВ units of measurement.В If you use a different unit of measurement in your source application, Datasmith automatically takes care of adjusting the scale of your scene so that your geometryВ appears at exactly the same real-world size in theВ Unreal Engine, and at the right locations in 3D space. In the Unreal Engine, all distances are always measured in centimeters. Understanding these issues can help you understand the results thatВ Datasmith produces, and to work with yourВ content in the Unreal Editor. The following sections provide details about specific issues that Datasmith handles during the scene conversion.

Why my proxy is transparent in vray rhino?