HOW TO USE THESE FILES?
To convert OBJ files to the W3D format using the 3D SpeedPort Xtra:

1 Choose Convert 3D Files from the Xtras menu in Director.
The Convert 3D Files dialog box will appear.
To add an OBJ file to a list of files to be converted, click Add Files and select one or more OBJ files.
To remove a selected file from the list, click Remove.
To remove all of the files from the list, click Remove All.

2 If necessary, navigate to your desired output directory by using the Browse button.
The output directory is the directory in which the converted W3D files will be placed. By default, this is your current directory; after you change the directory, the output directory will default to the one you choose.

3 If desired, select the Prompt Before Overwriting Files check box.
By default, the output filename is the name of the original file with the .obj extension replaced by the .w3d extension. Normally, if there is a name conflict between one of the files being converted and existing files in the output directory, the 3D SpeedPort Xtra will overwrite the existing file. However, if you select Prompt Before Overwriting Files, the Xtra will display a warning dialog to appear if such a name conflict occurs.

4 In the Convert 3D Files dialog box, click the Options button.
The 3D SpeedPort Xtra displays an additional dialog box, where you can set the following conversion options:
Units allows you to change the scale of the imported file. The default Shockwave 3D unit is meters, but Alias|Wavefront files may have been built to different units or even different scales (1 unit = 4 inches, and so on).
Mesh Smoothing allows you to smooth faceted meshes. If this option is set to 0, the translator will use the mesh's default smoothing. Higher values (up to 90 degrees) will cause adjacent faces that are oriented within the mesh smoothing value to be smoothed together. The practical effect is that the meshes will look smooth rather than having hard edges.
Treat Polygons as Double-Sided causes the converter to create double-sided meshes. Depending on what package generated the OBJ file, meshes may not be oriented correctly, and some meshes may face away from the camera (and thus won't render). By using this option to create double-sided meshes, the meshes will look correct but will have double the number of faces (creating larger files and rendering more slowly).
Flip Polygon Orientation changes the orientation of every mesh to face the other way. This is necessary if your 3D tool created meshes that are turned "inside out."
Y-axis Up adjusts a file that is oriented incorrectly. This can result from a 3D package (such as Rhinoceros) that models with the Y axis as the vertical axis; in Shockwave 3D, the Z axis is vertical.

5 To convert the files, click the Convert button.
The translate progress dialog box will show the status of the conversion. The translate progress dialog box will automatically close when your OBJ files have been converted to W3D format.

extract taken from Macromedia.com
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