restrict ubOde castray with terrain range only on horizontal plane, let it find physical avatars.

1 files changed, 10 insertions, 1 deletions

diff --git a/OpenSim/Region/PhysicsModules/ubOde/ODERayCastRequestManager.cs b/OpenSim/Region/PhysicsModules/ubOde/ODERayCastRequestManager.cs
index b82d593..adefd5e 100644
--- a/OpenSim/Region/PhysicsModules/ubOde/ODERayCastRequestManager.cs
+++ b/OpenSim/Region/PhysicsModules/ubOde/ODERayCastRequestManager.cs
@@ -317,8 +317,17 @@ namespace OpenSim.Region.PhysicsModule.ubOde
                 // current ode land to ray collisions is very bad
                 // so for now limit its range badly
                 if (req.length > 60.0f)
-                    d.GeomRaySetLength(ray, 60.0f);
+                {
+                    Vector3 t = req.Normal * req.length;
+                    float tmp = t.X * t.X + t.Y * t.Y;
+                    if(tmp > 2500)
+                    {
+                        float tmp2 = req.length * req.length - tmp + 2500;
+                        tmp2 = (float)Math.Sqrt(tmp2);
+                        d.GeomRaySetLength(ray, tmp2);
+                    }
 
+                }
                 d.SpaceCollide2(ray, m_scene.GroundSpace, IntPtr.Zero, nearCallback);
             }