The normal vector of the surface hit by the ray.
The normal vector of a surface is the vector that points outward perpendicularly at a given point on that surface. This vector can be useful in raycasting as a way to determine reflections or ricochets from projectiles or to align a character so that it stands upright on the surface.
Note: If a hit occurs starting inside a collider then the collision normal will be simply the opposite direction of the line/ray query.
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