The ProjectOnNormal method projects the current Vector3 instance onto a specified normal vector. This operation is useful in various mathematical and physics calculations where you need to find the component of a vector in the direction of a given normal.
To use the ProjectOnNormal method, you need to have a Vector3 instance and a normal vector onto which you want to project the instance. The method modifies the normal vector to be a unit vector and then projects the current vector onto it.
Vector3 vector = new Vector3(3, 4, 5); Vector3 normal = new Vector3(0, 1, 0); Vector3 projectedVector = vector.ProjectOnNormal(ref normal); // projectedVector now contains the projection of 'vector' onto 'normal'.