Extrudes surface geometry into a volume.
This operation is used to create a volume out of surface geometry. This can be useful for creating physical objects such as terrain features.
The amount by which the geometry is extruded.
Positive values indicate an extrusion above the given surface, negative values an extrusion below it.
The direction in which the extrusion takes place.
Whether or not the surface resulting from the extrusion is made into a flat plane.