SketchUp is software that is commonly used for architecture modeling. Unity reads SketchUp files directly and supports the following SketchUp features:
Tip: To optimize importing your SketchUp file into Unity, see Optimizing FBX files.
To import a SketchUp file directly into Unity, drag it into the Assets folder using the Finder (MacOS) or the File Manager (Windows). When you click the Asset file inside Unity, the Model Inspector appears in a special Sketch Up tab:
|Generate Back Face||Generate back-facing polygons in Unity. By default, Unity only imports the front-facing polygons to reduce polygon counts unless there is Material assigned to the back-facing polygons in SketchUp.|
|Merge Coplanar Faces||Merge coplanar faces when generating meshes in Unity.|
|Unit Conversion||Length measurement to unit conversion.|
|Unit drop-down box||Choose the unit to use for the conversion. Defaults to Meters.|
|Value to convert||This value determines how the Scale Factor is calculated (see Unit conversion below).|
|Longitude||Read-only value from the Geo Coordinate system, used to identify a position on a geographic system.|
|Latitude||Read-only value from the Geo Coordinate system, used to identify a position on a geographic system.|
|North Correction||Read-only value from the Geo Coordinate system, used to describe the angle needed to rotate North to the Z axis.|
|Select Nodes||Open a window where you can specify which nodes to import. A node represents an Entity, Group, or Component Instance in SketchUp. For example, if you have one file containing several couches, you can select the one you want to import. For more information, see Selecting SketchUpNodes below.|
The rest of the options on the Inspector window are the regular FBX Model import options that are available for any 3D modeling application.
By default, Unity scales SketchUp models to 1 meter (0.0254 inches) to 1 unit length.
Changing the default Unit Conversion values affects the scale of the imported file:
Unity supports the visibility setting in the SketchUp file for each node. If a node is hidden in the SketchUp file, Unity does not import the node by default. However, you can override this behavior by clicking the Select Nodes button to display the SketchUp node hierarchy in the SketchUp Node Selection Dialog window.
Each group and component instance in the file appears in the hierarchy as a node, which you can select or deselect. When you are finished selecting the nodes to include, click the OK button to import only the checked nodes.
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