Web Browser Requirements
The 3D Model viewer requires that the WebGL standard be implemented in the PC or Mac web browser.
The current releases of the Chrome and Firefox for Windows and Mac support WebGL, as well as Internet Explorer 11 for Windows and Safari for Mac.
The current release of the Safari browser for Mac includes WebGL, but WebGL must be manually enabled.
To enable WebGL in Safari, select the 'Enable WebGL' option in the 'Develop' menu.
To make the 'Develop' menu option appear, go to the Safari 'Advanced' Preference settings and check the 'Show Develop menu in menu bar' option.