The more advanced of the two 3D background features offered is what we find in Theme Wizard when we use Advanced options. This 3D feature allows us to layer our 3D effect:
The 3D effect is created because the image file (or files) that you upload using the 3D-slot becomes an integrated part of the background. When you zoom in and out, you will have a feeling that this takes place in a layer above the background, which creates an appealing and lively 3D effect on your canvas.