1 files changed, 220 insertions, 0 deletions

diff --git a/OpenSim/Region/Physics/UbitMeshing/SculptMesh.cs b/OpenSim/Region/Physics/UbitMeshing/SculptMesh.cs
new file mode 100644
index 0000000..bc1375b
--- /dev/null
+++ b/OpenSim/Region/Physics/UbitMeshing/SculptMesh.cs
@@ -0,0 +1,220 @@
+/*
+ * 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.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+
+using System.Drawing;
+using System.Drawing.Imaging;
+
+namespace PrimMesher
+{
+
+    public class SculptMesh
+    {
+        public List<Coord> coords;
+        public List<Face> faces;
+
+        public enum SculptType { sphere = 1, torus = 2, plane = 3, cylinder = 4 };
+
+
+        public SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool mirror, bool invert)
+        {
+            if (mirror)
+                invert = !invert;
+
+            SculptMap smap = new SculptMap(sculptBitmap, lod);
+
+            List<List<Coord>> rows = smap.ToRows(mirror);
+
+            _SculptMesh(rows, sculptType, invert);
+        }
+
+        private void _SculptMesh(List<List<Coord>> rows, SculptType sculptType, bool invert)
+        {
+            coords = new List<Coord>();
+            faces = new List<Face>();
+
+            sculptType = (SculptType)(((int)sculptType) & 0x07);
+
+            int width = rows[0].Count;
+
+            int p1, p2, p3, p4;
+
+            int imageX, imageY;
+
+            if (sculptType != SculptType.plane)
+            {
+                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];
+            Coord bottomPole = rows[rows.Count - 1][width / 2];
+
+            if (sculptType == SculptType.sphere)
+            {
+                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++)
+                    {
+                        topPoleRow.Add(topPole);
+                        bottomPoleRow.Add(bottomPole);
+                    }
+                    rows.Insert(0, topPoleRow);
+                    rows.Add(bottomPoleRow);
+                }
+                else
+                {
+                    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;
+                    }
+                }
+            }
+
+            if (sculptType == SculptType.torus)
+                rows.Add(rows[0]);
+
+            int coordsDown = rows.Count;
+            int coordsAcross = rows[0].Count;
+
+            float widthUnit = 1.0f / (coordsAcross - 1);
+            float heightUnit = 1.0f / (coordsDown - 1);
+
+            for (imageY = 0; imageY < coordsDown; imageY++)
+            {
+                int rowOffset = imageY * coordsAcross;
+
+                for (imageX = 0; imageX < coordsAcross; imageX++)
+                {
+                    /*
+                    *   p1-----p2
+                    *   | \ f2 |
+                    *   |   \  |
+                    *   | f1  \|
+                    *   p3-----p4
+                    */
+
+                    p4 = rowOffset + imageX;
+                    p3 = p4 - 1;
+
+                    p2 = p4 - coordsAcross;
+                    p1 = p3 - coordsAcross;
+
+                    this.coords.Add(rows[imageY][imageX]);
+
+                    if (imageY > 0 && imageX > 0)
+                    {
+                        Face f1, f2;
+
+                            if (invert)
+                            {
+                                f1 = new Face(p1, p4, p3);
+                                f2 = new Face(p1, p2, p4);
+                            }
+                            else
+                            {
+                                f1 = new Face(p1, p3, p4);
+                                f2 = new Face(p1, p4, p2);
+                            }
+
+                        this.faces.Add(f1);
+                        this.faces.Add(f2);
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Duplicates a SculptMesh object. All object properties are copied by value, including lists.
+        /// </summary>
+        /// <returns></returns>
+        public SculptMesh Copy()
+        {
+            return new SculptMesh(this);
+        }
+
+        public SculptMesh(SculptMesh sm)
+        {
+            coords = new List<Coord>(sm.coords);
+            faces = new List<Face>(sm.faces);
+        }
+
+        public void Scale(float x, float y, float z)
+        {
+            int i;
+            int numVerts = this.coords.Count;
+
+            Coord m = new Coord(x, y, z);
+            for (i = 0; i < numVerts; i++)
+                this.coords[i] *= m;
+        }
+
+        public void DumpRaw(String path, String name, String title)
+        {
+            if (path == null)
+                return;
+            String fileName = name + "_" + title + ".raw";
+            String completePath = System.IO.Path.Combine(path, fileName);
+            StreamWriter sw = new StreamWriter(completePath);
+
+            for (int i = 0; i < this.faces.Count; i++)
+            {
+                string s = this.coords[this.faces[i].v1].ToString();
+                s += " " + this.coords[this.faces[i].v2].ToString();
+                s += " " + this.coords[this.faces[i].v3].ToString();
+
+                sw.WriteLine(s);
+            }
+
+            sw.Close();
+        }
+    }
+}