Once you have a 3D image, once again right click and select 3D Effects. This window will open that presents additional options using 3D.
3D Effects offers many options for the image. Select the image and then choose a 3D effect and then update the image by choosing the dropper in the upper right hand corner. To make the option take effect permanently select the check mark in the upper right hand corner.
3D Effects has five option buttons at the top of the window: Geometry, Shading, Illumination, Textures and Material. Choose a button and then create the effects, checking the output with the Update button