From 396ab1424ccefda82ff59e6ea7fc8b4fb698385b Mon Sep 17 00:00:00 2001
From: UbitUmarov
Date: Fri, 25 Aug 2017 23:44:59 +0100
Subject:  in some cases ll TPVs can only see avatar rotations around Z or
 camera misbehaves

---
 OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'OpenSim/Region')

diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index 6dd3885..c44c741 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -5589,6 +5589,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 velocity = presence.Velocity;
                 acceleration = Vector3.Zero;
                 rotation = presence.Rotation;
+                // tpvs can only see rotations around Z in some cases
+                if(!presence.Flying && !presence.IsSatOnObject)
+                {
+                    rotation.X = 0f;
+                    rotation.Y = 0f;
+                    rotation.Normalize();
+                }
                 angularVelocity = presence.AngularVelocity;
 
 //                m_log.DebugFormat(
@@ -5718,6 +5725,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             Vector3 velocity = new Vector3(0, 0, 0);
             Vector3 acceleration = new Vector3(0, 0, 0);
+            // tpvs can only see rotations around Z in some cases
+            if(!data.Flying && !data.IsSatOnObject)
+            {
+                rotation.X = 0f;
+                rotation.Y = 0f;
+            }
             rotation.Normalize();
 
             data.CollisionPlane.ToBytes(objectData, 0);
-- 
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