2 files changed, 5 insertions, 2 deletions

diff --git a/OpenSim/Region/CoreModules/World/Land/LandObject.cs b/OpenSim/Region/CoreModules/World/Land/LandObject.cs
index 094b0f5..9111d28 100644
--- a/OpenSim/Region/CoreModules/World/Land/LandObject.cs
+++ b/OpenSim/Region/CoreModules/World/Land/LandObject.cs
@@ -994,7 +994,7 @@ namespace OpenSim.Region.CoreModules.World.Land
                         }
                         else
                         {
-                            // keeping previus odd average
+                            // keeping previous odd average
                             avgx = (avgx * tempArea + x) / (tempArea + 1);
                             avgy = (avgy * tempArea + y) / (tempArea + 1);
                         }
diff --git a/OpenSim/Region/CoreModules/World/Warp3DMap/TerrainSplat.cs b/OpenSim/Region/CoreModules/World/Warp3DMap/TerrainSplat.cs
index 4b9f207..f60beaf 100644
--- a/OpenSim/Region/CoreModules/World/Warp3DMap/TerrainSplat.cs
+++ b/OpenSim/Region/CoreModules/World/Warp3DMap/TerrainSplat.cs
@@ -441,6 +441,9 @@ namespace OpenSim.Region.CoreModules.World.Warp3DMap
                 startHeights[0], startHeights[2],
                 startHeights[1], startHeights[3],
                 pctX, pctY);
+            if (float.IsNaN(startHeight))
+                return 0;
+
             startHeight = Utils.Clamp(startHeight, 0f, 255f);
 
             float heightRange = ImageUtils.Bilinear(
@@ -448,7 +451,7 @@ namespace OpenSim.Region.CoreModules.World.Warp3DMap
                 heightRanges[1], heightRanges[3],
                 pctX, pctY);
             heightRange = Utils.Clamp(heightRange, 0f, 255f);
-            if(heightRange == 0f)
+            if(heightRange == 0f || float.IsNaN(heightRange))
                 return 0;
 
             // Generate two frequencies of perlin noise based on our global position