OpenSim.Region.Framework.Scenes.ScenePresence.RayCastCameraCallback C# (CSharp) Method

        public void RayCastCameraCallback(bool hitYN, Vector3 collisionPoint, uint localid, float distance, Vector3 pNormal)
        {
            const float POSITION_TOLERANCE = 0.02f;
            const float VELOCITY_TOLERANCE = 0.02f;
            const float ROTATION_TOLERANCE = 0.02f;

            if (m_followCamAuto)
            {
                if (hitYN)
                {
                    CameraConstraintActive = true;
                    //m_log.DebugFormat("[RAYCASTRESULT]: {0}, {1}, {2}, {3}", hitYN, collisionPoint, localid, distance);
                    
                    Vector3 normal = Vector3.Normalize(new Vector3(0f, 0f, collisionPoint.Z) - collisionPoint);
                    ControllingClient.SendCameraConstraint(new Vector4(normal.X, normal.Y, normal.Z, -1 * Vector3.Distance(new Vector3(0,0,collisionPoint.Z),collisionPoint)));
                }
                else
                {
                    if (!m_pos.ApproxEquals(m_lastPosition, POSITION_TOLERANCE) ||
                        !Velocity.ApproxEquals(m_lastVelocity, VELOCITY_TOLERANCE) ||
                        !m_bodyRot.ApproxEquals(m_lastRotation, ROTATION_TOLERANCE))
                    {
                        if (CameraConstraintActive)
                        {
                            ControllingClient.SendCameraConstraint(new Vector4(0f, 0.5f, 0.9f, -3000f));
                            CameraConstraintActive = false;
                        }
                    }
                }
            }
        }