From f1677f55466a28e273933ad53351943ef5bed46b Mon Sep 17 00:00:00 2001
From: Thomas Geymayer <tomgey@gmail.com>
Date: Sat, 12 Jul 2014 11:55:38 +0200
Subject: [PATCH] SGTrackToAnimation: supress wrong warnings.

---
 simgear/scene/model/SGTrackToAnimation.cxx | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/simgear/scene/model/SGTrackToAnimation.cxx b/simgear/scene/model/SGTrackToAnimation.cxx
index d74034db..f01fe691 100644
--- a/simgear/scene/model/SGTrackToAnimation.cxx
+++ b/simgear/scene/model/SGTrackToAnimation.cxx
@@ -84,7 +84,10 @@ class FindGroupVisitor:
 
       if( !_group )
         _group = &group;
-      else
+
+      // Different paths can exists for example with a picking animation (pick
+      // render group)
+      else if( _group != &group )
         SG_LOG
         (
           SG_IO,
@@ -178,7 +181,10 @@ class SGTrackToAnimation::UpdateCallback:
         float proj = _lock_axis * _track_axis;
         if( proj != 0.0 )
         {
-          anim->log(SG_WARN, "track-axis not perpendicular to lock-axis");
+          if( _slave_dof < 2 )
+            // Without slave_dof >= 2, can not rotate out of plane normal to
+            // lock axis.
+            anim->log(SG_WARN, "track-axis not perpendicular to lock-axis");
 
           // Make tracking axis perpendicular to locked axis
           _track_axis -= _lock_axis * proj;