I’m assuming we can’t treat a directional light as any other form of light, that is as a single point, but as a plane with the same orientation as the directional light. so instead of casting a ray from my object towards the center of the DirectionalLight, I’m casting it from myobject.transform.position to myObject.transform.position - directection of DirectionalLight so that I’m casting lines parallel to the light as in the picture
and if the ray hits a wall on it’s way then set a bool value underSun= true else underSun=false
and to increase the accuracy of the detection, instead of casting a single ray from the center of the object ,I’m casting four each from the it’s top corners
and on everyUpdate if a rayCast from any of these corners doesn’t hit a wall then break and set
underSun= true
this does make sense to me, but I’m getting some weird unwanted results with my code and I would appreciate if anyone can point me to the right direction. see in gif below
the code is here
using UnityEngine;
using System.Collections;
public class NewPlayer : MonoBehaviour {
public NewSun sun;
private MeshRenderer mesh;
private RaycastHit hit;
private bool underSun = false;
// Use this for initialization
void Start () {
mesh = GetComponent<MeshRenderer>();
}
// Update is called once per frame
void Update () {
underSun = false;
Vector3 sunDir = sun.transform.forward;
sunDir.Normalize();
sunDir *= 100;
foreach (Transform child in transform) {
if (!Physics.Raycast(child.position, child.position - sunDir, 30, LayerMask.GetMask("Wall")))
{
Debug.DrawLine(child.position, child.position - sunDir, Color.red);
underSun = true;
}
else {
Debug.DrawLine(child.position, child.position - sunDir, Color.green);
}
}
if (underSun)
{
mesh.material.color = Color.red;
}
else {
mesh.material.color = Color.green;
}
}
}