koobas.hobune.stream
How do I use raycasts to see coordinates of the hit?
I want to click on a plane, and get the coordinates of the point on the plane that I clicked.
Take a look at the Barycentric Coordinates. Alternatively you can just use the Point parameter and calculate it yourself, knowing the size of the plane, it's orientation, and it's position in the world.
Best Answer
If you are using Unity Script then you can do it like this:
var hit : RaycastHit;
if(Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), hit, 1000) {
var localHit = transform.InverseTransformPoint(hit.point);
//Do something with the local coordinates
}
This will give you the hit point in terms of the plane's coordinate system.
You know, I never use InverseTransform. I should start using it.
You need to do a regular ray cast. This will give you the position on the plane you clicked on with your mouse in world coordinates.
You can also use
Camera.main.ScreenPointToRay()
