how to raycast 3d code example
Example: unity 3d raycast
using UnityEngine;// C# example.public class ExampleClass : MonoBehaviour
{
// See Order of Execution for Event Functions for information on FixedUpdate() and Update() related to physics queries
void FixedUpdate()
{
// Bit shift the index of the layer (8) to get a bit mask
int layerMask = 1 << 8; // This would cast rays only against colliders in layer 8.
// But instead we want to collide against everything except layer 8. The ~ operator does this, it inverts a bitmask.
layerMask = ~layerMask; RaycastHit hit;
// Does the ray intersect any objects excluding the player layer
if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out hit, Mathf.Infinity, layerMask))
{
Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * hit.distance, Color.yellow);
Debug.Log("Did Hit");
}
else
{
Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * 1000, Color.white);
Debug.Log("Did not Hit");
}
}
}