1 files changed, 7 insertions, 2 deletions

diff --git a/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/RevertSphere.cs b/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/RevertSphere.cs
index d3a1d3d..7a1ec72 100644
--- a/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/RevertSphere.cs
+++ b/OpenSim/Region/Environment/Modules/World/Terrain/PaintBrushes/RevertSphere.cs
@@ -41,7 +41,7 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain.PaintBrushes
 
         #region ITerrainPaintableEffect Members
 
-        public void PaintEffect(ITerrainChannel map, bool[,] mask, double rx, double ry, double rz, double strength, double duration)
+        public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration)
         {
             strength = TerrainUtil.MetersToSphericalStrength(strength);
             duration = 0.03; //MCP Should be read from ini file
@@ -54,10 +54,15 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain.PaintBrushes
             int x;
             for (x = 0; x < map.Width; x++)
             {
+                // Skip everything unlikely to be affected
+                if (Math.Abs(x - rx) > strength * 1.1)
+                    continue;
+
                 int y;
                 for (y = 0; y < map.Height; y++)
                 {
-                    if (!mask[x,y])
+                    // Skip everything unlikely to be affected
+                    if (Math.Abs(y - ry) > strength * 1.1)
                         continue;
 
                     // Calculate a sphere and add it to the heighmap