"3D" is a skin type in Dynamic Posts that lets you display posts in a 3D carousel.
There are a couple of customization options in 3D skin type.
Type of 3D - 3D carousel can be rendered in two types viz Circle and Row. The circle will slide the 3d grid horizontally while the Row will make it vertically slidable.
Size Plane - The size plane allows you to define the width of your visible plane.
Depth Blur - This toggle makes the other blocks blurry.
Mouse Wheel - With mouse wheel enabled the 3D carousel will slide as the user scrolls with the mouse.