3D DVE
The 3D DVE keys support size, aspect, X/Y/Z position, crop, and rotation along with the addition of effects like simple borders.
The 3D DVE operates by manipulating DVE keys, or individual channels, in 3-dimensional space. This allows you to position keys in front of, or behind, other keys, and make keys appear larger (closer to you) or smaller (further from you) than they are.
A 3D DVE key can be positioned anywhere in the virtual 3D world; however, it is only visible on screen if it is within the visible area. This allows you to perform transition effects where the key appears to fly in from one side. The key is being taken from a position outside of the visible area into the visible area.

Tip: Size and Z-Position will appear similar but are performing different functions. Use Z-Position to move the key towards or away from the screen. Use Size to make the key
bigger or smaller at the current z-position. When using a key combiner, this allows you to place a key in front of the other and adjust the size without changing the overlap
position. Refer to DVE Key Combiner for more information on combining keys.