Where are the settings?
Assuming you’ve already installed the WP3D Models plugin, you can find the Wp3D Settings page under the new “Models” section of your WordPress Admin.
Models -> Settings
Or, the full url is (replace ‘your-domain-name-here.com’ with your domain):
http://your-domain-name-here.com/wp-admin/edit.php?post_type=model&page=WP3D_Models_settings
Here’s a screenshot: