The GetPositionOnPlane method calculates the intersection point of a ray with a plane defined by a position and a normal vector. This method is useful for determining where a ray, such as a mouse click or a camera ray, intersects with a specific plane in 3D space.
To use the GetPositionOnPlane method, provide the following parameters:
position: A Vector3 representing a point on the plane.planeNormal: A Vector3 representing the normal vector of the plane. This vector should be perpendicular to the plane.ray: A Ray object representing the ray to test for intersection with the plane.The method returns a Nullable<Vector3>, which is the intersection point if the ray intersects the plane, or null if there is no intersection.
// Example usage of GetPositionOnPlane
Vector3 planePosition = new Vector3(0, 0, 0); // A point on the plane
Vector3 planeNormal = new Vector3(0, 1, 0); // The normal of the plane
Ray ray = new Ray(new Vector3(1, 1, 1), new Vector3(0, -1, 0)); // A ray pointing downwards
Vector3? intersection = Gizmo.GetPositionOnPlane(planePosition, planeNormal, ray);
if (intersection.HasValue)
{
// Do something with the intersection point
Vector3 point = intersection.Value;
// e.g., place an object at the intersection point
}
else
{
// Handle the case where there is no intersection
}