Projection

Project the spline into 3D mesh if found , if no 3D mesh is found then projection is done on the current Unity scene grid,
For this to work, the meshes where the spline plus object is being projected needs to have a 3D collider on.

Variables	Description
Project Spline	trigger a spline shape projection
Raycast length	The length of the projection raycast.
Offset	The local translation offset applied to the spline on the Y axis in case offsetting spline is required.
Show projection rays	Used to display the rays in your scene view.
Handles projection	Enables the handles projection as well, this will increases projection precision.
Mesh orientation	Override the spline normals with the projection mesh normals.