3 files changed, 366 insertions, 88 deletions

diff --git a/OpenSim/Region/Physics/Meshing/PrimMesher.cs b/OpenSim/Region/Physics/Meshing/PrimMesher.cs
index 2a213c3..53022ad 100644
--- a/OpenSim/Region/Physics/Meshing/PrimMesher.cs
+++ b/OpenSim/Region/Physics/Meshing/PrimMesher.cs
@@ -257,7 +257,6 @@ namespace PrimMesher
         public int uv2;
         public int uv3;
 
-
         public Face(int v1, int v2, int v3)
         {
             primFace = 0;
@@ -630,6 +629,9 @@ namespace PrimMesher
         internal int numOuterVerts = 0;
         internal int numHollowVerts = 0;
 
+        internal int outerFaceNumber = -1;
+        internal int hollowFaceNumber = -1;
+
         internal bool calcVertexNormals = false;
         internal int bottomFaceNumber = 0;
         internal int numPrimFaces = 0;
@@ -827,15 +829,16 @@ namespace PrimMesher
 
                 if (createFaces)
                 {
-                    int numOuterVerts = this.coords.Count;
-                    int numHollowVerts = hollowCoords.Count;
-                    int numTotalVerts = numOuterVerts + numHollowVerts;
+                    //int numOuterVerts = this.coords.Count;
+                    //numOuterVerts = this.coords.Count;
+                    //int numHollowVerts = hollowCoords.Count;
+                    int numTotalVerts = this.numOuterVerts + this.numHollowVerts;
 
-                    if (numOuterVerts == numHollowVerts)
+                    if (this.numOuterVerts == this.numHollowVerts)
                     {
                         Face newFace = new Face();
 
-                        for (int coordIndex = 0; coordIndex < numOuterVerts - 1; coordIndex++)
+                        for (int coordIndex = 0; coordIndex < this.numOuterVerts - 1; coordIndex++)
                         {
                             newFace.v1 = coordIndex;
                             newFace.v2 = coordIndex + 1;
@@ -850,12 +853,12 @@ namespace PrimMesher
                     }
                     else
                     {
-                        if (numOuterVerts < numHollowVerts)
+                        if (this.numOuterVerts < this.numHollowVerts)
                         {
                             Face newFace = new Face();
                             int j = 0; // j is the index for outer vertices
-                            int maxJ = numOuterVerts - 1;
-                            for (int i = 0; i < numHollowVerts; i++) // i is the index for inner vertices
+                            int maxJ = this.numOuterVerts - 1;
+                            for (int i = 0; i < this.numHollowVerts; i++) // i is the index for inner vertices
                             {
                                 if (j < maxJ)
                                     if (angles.angles[j + 1].angle - hollowAngles.angles[i].angle < hollowAngles.angles[i].angle - angles.angles[j].angle + 0.000001f)
@@ -879,8 +882,8 @@ namespace PrimMesher
                         {
                             Face newFace = new Face();
                             int j = 0; // j is the index for inner vertices
-                            int maxJ = numHollowVerts - 1;
-                            for (int i = 0; i < numOuterVerts; i++)
+                            int maxJ = this.numHollowVerts - 1;
+                            for (int i = 0; i < this.numOuterVerts; i++)
                             {
                                 if (j < maxJ)
                                     if (hollowAngles.angles[j + 1].angle - angles.angles[i].angle < angles.angles[i].angle - hollowAngles.angles[j].angle + 0.000001f)
@@ -935,10 +938,10 @@ namespace PrimMesher
 
             if (calcVertexNormals && hasProfileCut)
             {
+                int lastOuterVertIndex = this.numOuterVerts - 1;
+
                 if (hasHollow)
                 {
-                    int lastOuterVertIndex = this.numOuterVerts - 1;
-
                     this.cut1CoordIndices.Add(0);
                     this.cut1CoordIndices.Add(this.coords.Count - 1);
 
@@ -954,6 +957,12 @@ namespace PrimMesher
 
                 else
                 {
+                    this.cut1CoordIndices.Add(0);
+                    this.cut1CoordIndices.Add(1);
+
+                    this.cut2CoordIndices.Add(lastOuterVertIndex);
+                    this.cut2CoordIndices.Add(0);
+
                     this.cutNormal1.X = this.vertexNormals[1].Y;
                     this.cutNormal1.Y = -this.vertexNormals[1].X;
 
@@ -978,11 +987,14 @@ namespace PrimMesher
                 // I know it's ugly but so is the whole concept of prim face numbers
 
                 int faceNum = 1; // start with outer faces
+                this.outerFaceNumber = faceNum;
+
                 int startVert = hasProfileCut && !hasHollow ? 1 : 0;
                 if (startVert > 0)
                     this.faceNumbers.Add(-1);
-                for (int i = 0; i < numOuterVerts - 1; i++)
-                    this.faceNumbers.Add(sides < 5 ? faceNum++ : faceNum);
+                for (int i = 0; i < this.numOuterVerts - 1; i++)
+                    //this.faceNumbers.Add(sides < 5 ? faceNum++ : faceNum);
+                    this.faceNumbers.Add(sides < 5 && i < sides ? faceNum++ : faceNum);
 
                 //if (!hasHollow && !hasProfileCut)
                 //    this.bottomFaceNumber = faceNum++;
@@ -992,12 +1004,15 @@ namespace PrimMesher
                 if (sides > 4 && (hasHollow || hasProfileCut))
                     faceNum++;
 
+                if (sides < 5 && (hasHollow || hasProfileCut) && this.numOuterVerts < sides)
+                    faceNum++;
+
                 if (hasHollow)
                 {
-                    for (int i = 0; i < numHollowVerts; i++)
+                    for (int i = 0; i < this.numHollowVerts; i++)
                         this.faceNumbers.Add(faceNum);
 
-                    faceNum++;
+                    this.hollowFaceNumber = faceNum++;
                 }
                 //if (hasProfileCut || hasHollow)
                 //    this.bottomFaceNumber = faceNum++;
@@ -1005,11 +1020,11 @@ namespace PrimMesher
 
                 if (hasHollow && hasProfileCut)
                     this.faceNumbers.Add(faceNum++);
+
                 for (int i = 0; i < this.faceNumbers.Count; i++)
                     if (this.faceNumbers[i] == -1)
                         this.faceNumbers[i] = faceNum++;
 
-
                 this.numPrimFaces = faceNum;
             }
 
@@ -1019,7 +1034,7 @@ namespace PrimMesher
         {
             this.faceUVs = new List<UVCoord>();
             foreach (Coord c in this.coords)
-                this.faceUVs.Add(new UVCoord(1.0f - (0.5f + c.X), 1.0f - (0.5f - c.Y)));
+                this.faceUVs.Add(new UVCoord(0.5f + c.X, 0.5f - c.Y));
         }
 
         internal Profile Copy()
@@ -1348,7 +1363,6 @@ namespace PrimMesher
                 float stepSize = twoPi / this.stepsPerRevolution;
 
                 int step = (int)(startAngle / stepSize);
-//                int firstStep = step;
                 float angle = startAngle;
 
                 bool done = false;
@@ -1455,11 +1469,15 @@ namespace PrimMesher
         public float revolutions = 1.0f;
         public int stepsPerRevolution = 24;
 
+        private int profileOuterFaceNumber = -1;
+        private int profileHollowFaceNumber = -1;
+
         private bool hasProfileCut = false;
         private bool hasHollow = false;
         public bool calcVertexNormals = false;
         private bool normalsProcessed = false;
         public bool viewerMode = false;
+        public bool sphereMode = false;
 
         public int numPrimFaces = 0;
 
@@ -1491,10 +1509,35 @@ namespace PrimMesher
             s += "\nradius...............: " + this.radius.ToString();
             s += "\nrevolutions..........: " + this.revolutions.ToString();
             s += "\nstepsPerRevolution...: " + this.stepsPerRevolution.ToString();
+            s += "\nsphereMode...........: " + this.sphereMode.ToString();
+            s += "\nhasProfileCut........: " + this.hasProfileCut.ToString();
+            s += "\nhasHollow............: " + this.hasHollow.ToString();
+            s += "\nviewerMode...........: " + this.viewerMode.ToString();
 
             return s;
         }
 
+        public int ProfileOuterFaceNumber
+        {
+            get { return profileOuterFaceNumber; }
+        }
+
+        public int ProfileHollowFaceNumber
+        {
+            get { return profileHollowFaceNumber; }
+        }
+
+        public bool HasProfileCut
+        {
+            get { return hasProfileCut; }
+        }
+
+        public bool HasHollow
+        {
+            get { return hasHollow; }
+        }
+
+
         /// <summary>
         /// Constructs a PrimMesh object and creates the profile for extrusion.
         /// </summary>
@@ -1531,8 +1574,12 @@ namespace PrimMesher
             if (hollow < 0.0f)
                 this.hollow = 0.0f;
 
-            this.hasProfileCut = (this.profileStart > 0.0f || this.profileEnd < 1.0f);
-            this.hasHollow = (this.hollow > 0.001f);
+            //if (sphereMode)
+            //    this.hasProfileCut = this.profileEnd - this.profileStart < 0.4999f;
+            //else
+            //    //this.hasProfileCut = (this.profileStart > 0.0f || this.profileEnd < 1.0f);
+            //    this.hasProfileCut = this.profileEnd - this.profileStart < 0.9999f;
+            //this.hasHollow = (this.hollow > 0.001f);
         }
 
         /// <summary>
@@ -1540,6 +1587,8 @@ namespace PrimMesher
         /// </summary>
         public void Extrude(PathType pathType)
         {
+            bool needEndFaces = false;
+
             this.coords = new List<Coord>();
             this.faces = new List<Face>();
 
@@ -1565,6 +1614,12 @@ namespace PrimMesher
                     steps = (int)(steps * 4.5 * length);
             }
 
+            if (sphereMode)
+                this.hasProfileCut = this.profileEnd - this.profileStart < 0.4999f;
+            else
+                //this.hasProfileCut = (this.profileStart > 0.0f || this.profileEnd < 1.0f);
+                this.hasProfileCut = this.profileEnd - this.profileStart < 0.9999f;
+            this.hasHollow = (this.hollow > 0.001f);
 
             float twistBegin = this.twistBegin / 360.0f * twoPi;
             float twistEnd = this.twistEnd / 360.0f * twoPi;
@@ -1634,6 +1689,32 @@ namespace PrimMesher
 
             this.numPrimFaces = profile.numPrimFaces;
 
+            //profileOuterFaceNumber = profile.faceNumbers[0];
+            //if (!needEndFaces)
+            //    profileOuterFaceNumber--;
+            //profileOuterFaceNumber = needEndFaces ? 1 : 0;
+
+
+            //if (hasHollow)
+            //{
+            //    if (needEndFaces)
+            //        profileHollowFaceNumber = profile.faceNumbers[profile.numOuterVerts + 1];
+            //    else
+            //        profileHollowFaceNumber = profile.faceNumbers[profile.numOuterVerts] - 1;
+            //}
+
+
+            profileOuterFaceNumber = profile.outerFaceNumber;
+            if (!needEndFaces)
+                profileOuterFaceNumber--;
+
+            if (hasHollow)
+            {
+                profileHollowFaceNumber = profile.hollowFaceNumber;
+                if (!needEndFaces)
+                    profileHollowFaceNumber--;
+            }
+
             int cut1Vert = -1;
             int cut2Vert = -1;
             if (hasProfileCut)
@@ -1673,7 +1754,7 @@ namespace PrimMesher
 
             path.Create(pathType, steps);
 
-            bool needEndFaces = false;
+
             if (pathType == PathType.Circular)
             {
                 needEndFaces = false;
@@ -1738,7 +1819,6 @@ namespace PrimMesher
                 // append this layer
 
                 int coordsLen = this.coords.Count;
-//                int lastCoordsLen = coordsLen;
                 newLayer.AddValue2FaceVertexIndices(coordsLen);
 
                 this.coords.AddRange(newLayer.coords);
@@ -1762,7 +1842,7 @@ namespace PrimMesher
                     int startVert = coordsLen + 1;
                     int endVert = this.coords.Count;
 
-                    if (sides < 5 || this.hasProfileCut || hollow > 0.0f)
+                    if (sides < 5 || this.hasProfileCut || this.hasHollow)
                         startVert--;
 
                     for (int i = startVert; i < endVert; i++)
@@ -1814,11 +1894,13 @@ namespace PrimMesher
                                     u1 -= (int)u1;
                                     if (u2 < 0.1f)
                                         u2 = 1.0f;
+                                    //this.profileOuterFaceNumber = primFaceNum;
                                 }
                                 else if (whichVert > profile.coords.Count - profile.numHollowVerts - 1)
                                 {
                                     u1 *= 2.0f;
                                     u2 *= 2.0f;
+                                    //this.profileHollowFaceNumber = primFaceNum;
                                 }
                             }
 
diff --git a/OpenSim/Region/Physics/Meshing/SculptMap.cs b/OpenSim/Region/Physics/Meshing/SculptMap.cs
new file mode 100644
index 0000000..d2d71de
--- /dev/null
+++ b/OpenSim/Region/Physics/Meshing/SculptMap.cs
@@ -0,0 +1,176 @@
+/*
+ * Copyright (c) Contributors
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// to build without references to System.Drawing, comment this out
+#define SYSTEM_DRAWING
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+#if SYSTEM_DRAWING
+using System.Drawing;
+using System.Drawing.Imaging;
+
+namespace PrimMesher
+{
+    public class SculptMap
+    {
+        public int width;
+        public int height;
+        public byte[] redBytes;
+        public byte[] greenBytes;
+        public byte[] blueBytes;
+
+        public SculptMap()
+        {
+        }
+
+        public SculptMap(Bitmap bm, int lod)
+        {
+            int bmW = bm.Width;
+            int bmH = bm.Height;
+
+            if (bmW == 0 || bmH == 0)
+                throw new Exception("SculptMap: bitmap has no data");
+
+            int numLodPixels = lod * 2 * lod * 2;  // (32 * 2)^2  = 64^2 pixels for default sculpt map image
+
+            bool needsScaling = false;
+
+            width = bmW;
+            height = bmH;
+            while (width * height > numLodPixels)
+            {
+                width >>= 1;
+                height >>= 1;
+                needsScaling = true;
+            }
+
+
+
+            try
+            {
+                if (needsScaling)
+                    bm = ScaleImage(bm, width, height,
+                        System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor);
+            }
+
+            catch (Exception e)
+            {
+                throw new Exception("Exception in ScaleImage(): e: " + e.ToString());
+            }
+
+            if (width * height > lod * lod)
+            {
+                width >>= 1;
+                height >>= 1;
+            }
+
+            int numBytes = (width + 1) * (height + 1);
+            redBytes = new byte[numBytes];
+            greenBytes = new byte[numBytes];
+            blueBytes = new byte[numBytes];
+
+            int byteNdx = 0;
+
+            try
+            {
+                for (int y = 0; y <= height; y++)
+                {
+                    for (int x = 0; x <= width; x++)
+                    {
+                        int bmY = y < height ? y * 2 : y * 2 - 1;
+                        int bmX = x < width ? x * 2 : x * 2 - 1;
+                        Color c = bm.GetPixel(bmX, bmY);
+
+                        redBytes[byteNdx] = c.R;
+                        greenBytes[byteNdx] = c.G;
+                        blueBytes[byteNdx] = c.B;
+
+                        ++byteNdx;
+                    }
+                }
+            }
+            catch (Exception e)
+            {
+                throw new Exception("Caught exception processing byte arrays in SculptMap(): e: " + e.ToString());
+            }
+
+            width++;
+            height++;
+        }
+
+        public List<List<Coord>> ToRows(bool mirror)
+        {
+            int numRows = height;
+            int numCols = width;
+
+            List<List<Coord>> rows = new List<List<Coord>>(numRows);
+
+            float pixScale = 1.0f / 255;
+
+            int rowNdx, colNdx;
+            int smNdx = 0;
+
+            for (rowNdx = 0; rowNdx < numRows; rowNdx++)
+            {
+                List<Coord> row = new List<Coord>(numCols);
+                for (colNdx = 0; colNdx < numCols; colNdx++)
+                {
+                    if (mirror)
+                        row.Add(new Coord(-(redBytes[smNdx] * pixScale - 0.5f), (greenBytes[smNdx] * pixScale - 0.5f), blueBytes[smNdx] * pixScale - 0.5f));
+                    else
+                        row.Add(new Coord(redBytes[smNdx] * pixScale - 0.5f, greenBytes[smNdx] * pixScale - 0.5f, blueBytes[smNdx] * pixScale - 0.5f));
+
+                    ++smNdx;
+                }
+                rows.Add(row);
+            }
+            return rows;
+        }
+
+        private Bitmap ScaleImage(Bitmap srcImage, int destWidth, int destHeight,
+                System.Drawing.Drawing2D.InterpolationMode interpMode)
+        {
+            Bitmap scaledImage = new Bitmap(srcImage, destWidth, destHeight);
+            scaledImage.SetResolution(96.0f, 96.0f);
+
+            Graphics grPhoto = Graphics.FromImage(scaledImage);
+            grPhoto.InterpolationMode = interpMode;
+
+            grPhoto.DrawImage(srcImage,
+                new Rectangle(0, 0, destWidth, destHeight),
+                new Rectangle(0, 0, srcImage.Width, srcImage.Height),
+                GraphicsUnit.Pixel);
+
+            grPhoto.Dispose();
+            return scaledImage;
+        }
+    }
+}
+#endif
diff --git a/OpenSim/Region/Physics/Meshing/SculptMesh.cs b/OpenSim/Region/Physics/Meshing/SculptMesh.cs
index 4dc6e2e..6aa8fe4 100644
--- a/OpenSim/Region/Physics/Meshing/SculptMesh.cs
+++ b/OpenSim/Region/Physics/Meshing/SculptMesh.cs
@@ -53,43 +53,6 @@ namespace PrimMesher
         public enum SculptType { sphere = 1, torus = 2, plane = 3, cylinder = 4 };
 
 #if SYSTEM_DRAWING
-        // private Bitmap ScaleImage(Bitmap srcImage, float scale)
-        // {
-        //     int sourceWidth = srcImage.Width;
-        //     int sourceHeight = srcImage.Height;
-        //     int sourceX = 0;
-        //     int sourceY = 0;
-
-        //     int destX = 0;
-        //     int destY = 0;
-        //     int destWidth = (int)(srcImage.Width * scale);
-        //     int destHeight = (int)(srcImage.Height * scale);
-
-        //     if (srcImage.PixelFormat == PixelFormat.Format32bppArgb)
-        //         for (int y = 0; y < srcImage.Height; y++)
-        //             for (int x = 0; x < srcImage.Width; x++)
-        //             {
-        //                 Color c = srcImage.GetPixel(x, y);
-        //                 srcImage.SetPixel(x, y, Color.FromArgb(255, c.R, c.G, c.B));
-        //             }
-
-        //     Bitmap scaledImage = new Bitmap(destWidth, destHeight,
-        //                              PixelFormat.Format24bppRgb);
-
-        //     scaledImage.SetResolution(96.0f, 96.0f);
-
-        //     Graphics grPhoto = Graphics.FromImage(scaledImage);
-        //     grPhoto.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Low;
-
-        //     grPhoto.DrawImage(srcImage,
-        //         new Rectangle(destX, destY, destWidth, destHeight),
-        //         new Rectangle(sourceX, sourceY, sourceWidth, sourceHeight),
-        //         GraphicsUnit.Pixel);
-
-        //     grPhoto.Dispose();
-        //     return scaledImage;
-        // }
-
 
         public SculptMesh SculptMeshFromFile(string fileName, SculptType sculptType, int lod, bool viewerMode)
         {
@@ -99,6 +62,7 @@ namespace PrimMesher
             return sculptMesh;
         }
 
+
         public SculptMesh(string fileName, int sculptType, int lod, int viewerMode, int mirror, int invert)
         {
             Bitmap bitmap = (Bitmap)Bitmap.FromFile(fileName);
@@ -268,6 +232,11 @@ namespace PrimMesher
                         for (imageY = imageYStart; imageY < imageYEnd; imageY++)
                         {
                             Color c = bitmap.GetPixel(imageX, imageY);
+                            if (c.A != 255)
+                            {
+                                bitmap.SetPixel(imageX, imageY, Color.FromArgb(255, c.R, c.G, c.B));
+                                c = bitmap.GetPixel(imageX, imageY);
+                            }
                             rSum += c.R;
                             gSum += c.G;
                             bSum += c.B;
@@ -284,30 +253,53 @@ namespace PrimMesher
             return rows;
         }
 
-
-        void _SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode, bool mirror, bool invert)
+        private List<List<Coord>> bitmap2CoordsSampled(Bitmap bitmap, int scale, bool mirror)
         {
-            coords = new List<Coord>();
-            faces = new List<Face>();
-            normals = new List<Coord>();
-            uvs = new List<UVCoord>();
+            int numRows = bitmap.Height / scale;
+            int numCols = bitmap.Width / scale;
+            List<List<Coord>> rows = new List<List<Coord>>(numRows);
 
-            sculptType = (SculptType)(((int)sculptType) & 0x07);
+            float pixScale = 1.0f / 256.0f;
 
-            if (mirror)
-                if (sculptType == SculptType.plane)
-                    invert = !invert;
+            int imageX, imageY = 0;
+
+            int rowNdx, colNdx;
+
+            for (rowNdx = 0; rowNdx <= numRows; rowNdx++)
+            {
+                List<Coord> row = new List<Coord>(numCols);
+                imageY = rowNdx * scale;
+                if (rowNdx == numRows) imageY--;
+                for (colNdx = 0; colNdx <= numCols; colNdx++)
+                {
+                    imageX = colNdx * scale;
+                    if (colNdx == numCols) imageX--;
 
-            float sourceScaleFactor = (float)(lod) / (float)Math.Sqrt(sculptBitmap.Width * sculptBitmap.Height);
+                    Color c = bitmap.GetPixel(imageX, imageY);
+                    if (c.A != 255)
+                    {
+                        bitmap.SetPixel(imageX, imageY, Color.FromArgb(255, c.R, c.G, c.B));
+                        c = bitmap.GetPixel(imageX, imageY);
+                    }
 
-            int scale = (int)(1.0f / sourceScaleFactor);
-            if (scale < 1) scale = 1;
+                    if (mirror)
+                        row.Add(new Coord(-(c.R * pixScale - 0.5f), c.G * pixScale - 0.5f, c.B * pixScale - 0.5f));
+                    else
+                        row.Add(new Coord(c.R * pixScale - 0.5f, c.G * pixScale - 0.5f, c.B * pixScale - 0.5f));
 
-            _SculptMesh(bitmap2Coords(sculptBitmap, scale, mirror), sculptType, viewerMode, mirror, invert);
+                }
+                rows.Add(row);
+            }
+            return rows;
         }
-#endif
 
 
+        void _SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode, bool mirror, bool invert)
+        {
+            _SculptMesh(new SculptMap(sculptBitmap, lod).ToRows(mirror), sculptType, viewerMode, mirror, invert);
+        }
+#endif
+
         void _SculptMesh(List<List<Coord>> rows, SculptType sculptType, bool viewerMode, bool mirror, bool invert)
         {
             coords = new List<Coord>();
@@ -331,8 +323,18 @@ namespace PrimMesher
 
             if (sculptType != SculptType.plane)
             {
-                for (int rowNdx = 0; rowNdx < rows.Count; rowNdx++)
-                    rows[rowNdx].Add(rows[rowNdx][0]);
+                if (rows.Count % 2 == 0)
+                {
+                    for (int rowNdx = 0; rowNdx < rows.Count; rowNdx++)
+                        rows[rowNdx].Add(rows[rowNdx][0]);
+                }
+                else
+                {
+                    int lastIndex = rows[0].Count - 1;
+
+                    for (int i = 0; i < rows.Count; i++)
+                        rows[i][0] = rows[i][lastIndex];
+                }
             }
 
             Coord topPole = rows[0][width / 2];
@@ -340,23 +342,41 @@ namespace PrimMesher
 
             if (sculptType == SculptType.sphere)
             {
-                int count = rows[0].Count;
-                List<Coord> topPoleRow = new List<Coord>(count);
-                List<Coord> bottomPoleRow = new List<Coord>(count);
+                if (rows.Count % 2 == 0)
+                {
+                    int count = rows[0].Count;
+                    List<Coord> topPoleRow = new List<Coord>(count);
+                    List<Coord> bottomPoleRow = new List<Coord>(count);
 
-                for (int i = 0; i < count; i++)
+                    for (int i = 0; i < count; i++)
+                    {
+                        topPoleRow.Add(topPole);
+                        bottomPoleRow.Add(bottomPole);
+                    }
+                    rows.Insert(0, topPoleRow);
+                    rows.Add(bottomPoleRow);
+                }
+                else
                 {
-                    topPoleRow.Add(topPole);
-                    bottomPoleRow.Add(bottomPole);
+                    int count = rows[0].Count;
+
+                    List<Coord> topPoleRow = rows[0];
+                    List<Coord> bottomPoleRow = rows[rows.Count - 1];
+
+                    for (int i = 0; i < count; i++)
+                    {
+                        topPoleRow[i] = topPole;
+                        bottomPoleRow[i] = bottomPole;
+                    }
                 }
-                rows.Insert(0, topPoleRow);
-                rows.Add(bottomPoleRow);
             }
-            else if (sculptType == SculptType.torus)
+
+            if (sculptType == SculptType.torus)
                 rows.Add(rows[0]);
 
             int coordsDown = rows.Count;
             int coordsAcross = rows[0].Count;
+            int lastColumn = coordsAcross - 1;
 
             float widthUnit = 1.0f / (coordsAcross - 1);
             float heightUnit = 1.0f / (coordsDown - 1);