public GameObjectRayHit RaycastMeshObject(Ray ray, GameObject gameObject)
{
Mesh objectMesh = gameObject.GetMesh();
RTMesh rtMesh = RTMeshDb.Get.GetRTMesh(objectMesh);
if (rtMesh != null)
{
MeshRayHit meshRayHit = rtMesh.Raycast(ray, gameObject.transform.localToWorldMatrix);
if (meshRayHit != null)
{
return(new GameObjectRayHit(ray, gameObject, meshRayHit));
}
}
else
{
// If no RTMesh instance is available, we will cast a ray against
// the object's MeshCollider as a last resort. This is actually useful
// when dealing with static mesh objects. These objects' meshes have
// their 'isReadable' flag set to false and can not be used to create
// an RTMesh instance. Thus a mesh collider is the next best choice.
MeshCollider meshCollider = gameObject.GetComponent <MeshCollider>();
if (meshCollider != null)
{
RaycastHit rayHit;
if (meshCollider.Raycast(ray, out rayHit, float.MaxValue))
{
return(new GameObjectRayHit(ray, rayHit));
}
}
}
return(null);
}
public GameObjectRayHit(Ray ray, GameObject hitObject, MeshRayHit meshRayHit)
{
_hitObject = hitObject;
_hitPoint = meshRayHit.HitPoint;
_hitEnter = meshRayHit.HitEnter;
_hitNormal = meshRayHit.HitNormal;
_hitPlane = new Plane(_hitNormal, _hitPoint);
_meshRayHit = meshRayHit;
}