3D Space

3D Space is the usage of 3D effects and related techniques in a video. As tennis is inherently 2D, anything in 3D immediately stands out as its own thing.

Usage

Real 3D

Real 3D is the use of a 3D compositor, most commonly 3D Source Alpha in Vegas or the native one built into After Effects. Programs like Blender are also built around working in 3D space.

Fake 3D

Fake 3D is the illusion of 3D objects, when in reality it is just 2D transformations made to look like 3D (or more commonly, 3D translations immediately projected into 2D.) The biggest give-away is if you put two fake 3D layers next to each other. If they intersect at a point, they are real 3D. If the layer just goes directly on top of the other, it is fake 3D.

Premiere Pro notably is not compatible with 3D space, but has a fake, "Basic 3D" plugin to provide 3D transformations. Older versions of Windows Movie Maker (namely 2.6 and older) are also capable of this, however usually custom plugins will need to be installed.