float CheckCameraPoints(Vector3 from, Vector3 to)
{
var nearestDistance = -1f;
RaycastHit hitInfo;
HelperK.ClipPlanePoints clipPlanePoints = HelperK.ClipPlaneAtNear(to);
//debugging lines creation
Debug.DrawLine(from, to + transform.forward * -GetComponent <Camera>().nearClipPlane, Color.red);
Debug.DrawLine(from, clipPlanePoints.UpperLeft);
Debug.DrawLine(from, clipPlanePoints.LowerLeft);
Debug.DrawLine(from, clipPlanePoints.UpperRight);
Debug.DrawLine(from, clipPlanePoints.LowerRight);
Debug.DrawLine(clipPlanePoints.UpperLeft, clipPlanePoints.UpperRight);
Debug.DrawLine(clipPlanePoints.UpperRight, clipPlanePoints.LowerRight);
Debug.DrawLine(clipPlanePoints.LowerRight, clipPlanePoints.LowerLeft);
Debug.DrawLine(clipPlanePoints.LowerLeft, clipPlanePoints.UpperLeft);
if (Physics.Linecast(from, clipPlanePoints.UpperLeft, out hitInfo) && hitInfo.collider.tag != "Player")
{
nearestDistance = hitInfo.distance;
}
if (Physics.Linecast(from, clipPlanePoints.UpperRight, out hitInfo) && hitInfo.collider.tag != "Player")
{
if (hitInfo.distance < nearestDistance || nearestDistance == -1) //if the new hit closer? or if we havent otherwise hit anything
{
nearestDistance = hitInfo.distance;
}
}
if (Physics.Linecast(from, clipPlanePoints.LowerLeft, out hitInfo) && hitInfo.collider.tag != "Player")
{
if (hitInfo.distance < nearestDistance || nearestDistance == -1) //if the new hit closer? or if we havent otherwise hit anything
{
nearestDistance = hitInfo.distance;
}
}
if (Physics.Linecast(from, clipPlanePoints.LowerRight, out hitInfo) && hitInfo.collider.tag != "Player")
{
if (hitInfo.distance < nearestDistance || nearestDistance == -1) //if the new hit closer? or if we havent otherwise hit anything
{
nearestDistance = hitInfo.distance;
}
}
if (Physics.Linecast(from, to + transform.forward * -GetComponent <Camera>().nearClipPlane, out hitInfo) && hitInfo.collider.tag != "Player")
{
if (hitInfo.distance < nearestDistance || nearestDistance == -1) //if the new hit closer? or if we havent otherwise hit anything
{
nearestDistance = hitInfo.distance;
}
}
return(nearestDistance);
}
//helper function for the Occlusion system, given two vectors it checks the Clip Plane points and returns the nearest distance we can reach without occluding
float CheckCameraPoints(Vector3 from, Vector3 to)
{
var nearestDistance = -1f;
RaycastHit hitInfo;
HelperK.ClipPlanePoints clipPlanePoints = HelperK.ClipPlaneAtNear(to);
//debugging lines creation
Debug.DrawLine(from, to + transform.forward * -GetComponent <Camera>().nearClipPlane, Color.red);
Debug.DrawLine(from, clipPlanePoints.UpperLeft);
Debug.DrawLine(from, clipPlanePoints.LowerLeft);
Debug.DrawLine(from, clipPlanePoints.UpperRight);
Debug.DrawLine(from, clipPlanePoints.LowerRight);
Debug.DrawLine(clipPlanePoints.UpperLeft, clipPlanePoints.UpperRight);
Debug.DrawLine(clipPlanePoints.UpperRight, clipPlanePoints.LowerRight);
Debug.DrawLine(clipPlanePoints.LowerRight, clipPlanePoints.LowerLeft);
Debug.DrawLine(clipPlanePoints.LowerLeft, clipPlanePoints.UpperLeft);
//ensure at each step we do not hit irrelevant colliders (Player (Ourselves), Enemies, or Objects specifically marked to not have CameraCollisions)
if (Physics.Linecast(from, clipPlanePoints.UpperLeft, out hitInfo) && hitInfo.collider.tag != "Player" && hitInfo.collider.tag != "IgnoreCameraCollision" && hitInfo.collider.tag != "Enemy")
{
nearestDistance = hitInfo.distance;
}
if (Physics.Linecast(from, clipPlanePoints.UpperRight, out hitInfo) && hitInfo.collider.tag != "Player" && hitInfo.collider.tag != "IgnoreCameraCollision" && hitInfo.collider.tag != "Enemy")
{
if (hitInfo.distance < nearestDistance || nearestDistance == -1) //if the new hit closer? or if we havent otherwise hit anything
{
nearestDistance = hitInfo.distance;
}
}
if (Physics.Linecast(from, clipPlanePoints.LowerLeft, out hitInfo) && hitInfo.collider.tag != "Player" && hitInfo.collider.tag != "IgnoreCameraCollision" && hitInfo.collider.tag != "Enemy")
{
if (hitInfo.distance < nearestDistance || nearestDistance == -1) //if the new hit closer? or if we havent otherwise hit anything
{
nearestDistance = hitInfo.distance;
}
}
if (Physics.Linecast(from, clipPlanePoints.LowerRight, out hitInfo) && hitInfo.collider.tag != "Player" && hitInfo.collider.tag != "IgnoreCameraCollision" && hitInfo.collider.tag != "Enemy")
{
if (hitInfo.distance < nearestDistance || nearestDistance == -1) //if the new hit closer? or if we havent otherwise hit anything
{
nearestDistance = hitInfo.distance;
}
}
if (Physics.Linecast(from, to + transform.forward * -GetComponent <Camera>().nearClipPlane, out hitInfo) && hitInfo.collider.tag != "Player" && hitInfo.collider.tag != "IgnoreCameraCollision" && hitInfo.collider.tag != "Enemy")
{
if (hitInfo.distance < nearestDistance || nearestDistance == -1) //if the new hit closer? or if we havent otherwise hit anything
{
nearestDistance = hitInfo.distance;
}
}
if (Physics.Linecast(from, to + transform.forward * -GetComponent <Camera>().nearClipPlane, out hitInfo))
{
Debug.Log(hitInfo.collider.tag);
Debug.Log(hitInfo.collider.name);
}
return(nearestDistance);
}