Importing in OBJ Format (3D only)

OBJ is a 3D format commonly used for point cloud information, as well as 3D scene models. OBJ files can be optionally accompanied by material files (.mtl) and texture files (.tga, .targa, .dds, .jpg, .png, etc.); the geometry imported with the OBJ file is independent from the material file. Material files may fail to import if the referenced texture files require codecs that are not installed; Renderworks is required to import texture information. OBJ files must contain at least one closed face object in order to successfully import. 3D geometry imports as mesh objects.

To import an OBJ file:

1. Select File > Import > Import OBJ (3D only).

The Open dialog box opens.

2. Select the file to import, and click Open.

The Import OBJ Options dialog box opens.

Click to show/hide parameters.

Parameter	Description
Import Materials	Select to import material files and any referenced texture files; if no material (.mtl) file exists in the folder containing the geometry (.obj) file, these options appear dimmed
Import Transparency and Image Data as Renderworks Textures (Renderworks required)	Converts imported texture information from the material file data into Renderworks textures, including transparency and image data
Create Renderworks Textures for All Materials (Renderworks required)	Converts all imported materials data into Renderworks textures, including plain color fills
Mesh Import Options
Mesh Smoothing	Select how mesh smoothing is applied to imported mesh objects: ●    Select Custom Crease Angle to define the Crease Angle for the imported objects ●    Select Use Document Settings to use the crease angle as defined in the document settings; for more information, see Vectorworks Display Preferences ●    Select None to perform no smoothing of imported mesh objects
Crease Angle	When Custom Crease Angle is selected, enter the desired angle to smooth mesh objects rendered with OpenGL or Renderworks; enter a higher crease angle value for a smoother surface (range: 0–180)

3. Click OK.

4. OBJ geometry and components are imported as specified. A mesh object is created, and it is automatically selected.

If the 3D information was derived from laser scanners, the object’s orientation after import may be different from the original due to the differences in the coordinate systems.

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