| ray | The starting point and direction of the ray. |
| maxDistance | The max distance the rayhit is allowed to be from the start of the ray. |
| layerMask | A Layer mask that is used to selectively ignore colliders when casting a ray. |
| queryTriggerInteraction | Specifies whether this query should hit Triggers. |
RaycastHit[] An array of RaycastHit objects. Note that the order of the results is undefined.
Casts a ray through the Scene and returns all hits. Note that order of the results is undefined.
Additional resources: Raycast.
using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { void Update() { RaycastHit[] hits; hits = Physics.RaycastAll(transform.position, transform.forward, 100.0F);
for (int i = 0; i < hits.Length; i++) { RaycastHit hit = hits[i]; Renderer rend = hit.transform.GetComponent<Renderer>();
if (rend) { // Change the material of all hit colliders // to use a transparent shader. rend.material.shader = Shader.Find("Transparent/Diffuse"); Color tempColor = rend.material.color; tempColor.a = 0.3F; rend.material.color = tempColor; } } } }
Notes: Raycasts will not detect colliders for which the raycast origin is inside the collider.
| origin | The starting point of the ray in world coordinates. |
| direction | The direction of the ray. |
| maxDistance | The max distance the rayhit is allowed to be from the start of the ray. |
| layermask | A Layer mask that is used to selectively ignore colliders when casting a ray. |
| queryTriggerInteraction | Specifies whether this query should hit Triggers. |
Additional resources: Raycast.
See example above.