Under both "Convert" module and "Burn" module, Leawo Video Converter Ultimate allows you to create 3D movies. Add source media files, right click a loaded media file and select "Edit" option, or click the "Edit" icon at the end of a file, to enter the video editing panel.
On the video editing panel, open the "3D" tab and then slide the "3D Mode" to green. You could then choose a 3D effect to apply to the final video file. There are in total 6 different 3D movie effects available for you to choose from: Red/Cyan, Red/Green, Red/Blue, Blue/Yellow, Interleaved, and Side by Side. Select one according to the 3D glasses you are using to enjoy 3D videos. For more vivid 3D effect, you could even directly drag the slide or set values in 3D Depth to adjust 3D depth. Tick "Apply to all" to apply selected 3D movie effect to all video files.