1 files changed, 110 insertions, 1 deletions

diff --git a/OpenSim/Region/Physics/Meshing/Meshmerizer.cs b/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
index 6fb4606..d668aa3 100644
--- a/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
+++ b/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
@@ -57,7 +57,7 @@ namespace OpenSim.Region.Physics.Meshing
         // Setting baseDir to a path will enable the dumping of raw files
         // raw files can be imported by blender so a visual inspection of the results can be done
         //        const string baseDir = "rawFiles";
-        private const string baseDir = null; // "rawFiles";
+        private const string baseDir = null; //"rawFiles";
 
 // TODO: unused
 //         private static void IntersectionParameterPD(PhysicsVector p1, PhysicsVector r1, PhysicsVector p2,
@@ -204,6 +204,8 @@ namespace OpenSim.Region.Physics.Meshing
                         }
                     }
                     break;
+
+                
                 default:
                     if (hshape == HollowShape.Same)
                         hshape= HollowShape.Square;
@@ -986,6 +988,105 @@ namespace OpenSim.Region.Physics.Meshing
             result.DumpRaw(baseDir, primName, "Z extruded");
             return result;
         }
+        private static Mesh CreateSphereMesh(String primName, PrimitiveBaseShape primShape, PhysicsVector size)
+        // Builds the z (+ and -) surfaces of a box shaped prim
+        {
+            UInt16 hollowFactor = primShape.ProfileHollow;
+            UInt16 profileBegin = primShape.ProfileBegin;
+            UInt16 profileEnd = primShape.ProfileEnd;
+            UInt16 taperX = primShape.PathScaleX;
+            UInt16 taperY = primShape.PathScaleY;
+            UInt16 pathShearX = primShape.PathShearX;
+            UInt16 pathShearY = primShape.PathShearY;
+            Mesh m = new Mesh();
+            float radius = 0.6f;
+            float sq5 = (float) Math.Sqrt(5.0);
+            float phi = (1 + sq5) * 0.5f;
+            float rat = (float) Math.Sqrt(10f + (2f * sq5)) / (4f * phi);
+            float a = (radius / rat) * 0.5f;
+            float b = (radius / rat) / (2.0f * phi);
+
+            Vertex v1 = new Vertex(0f, b, -a);
+            Vertex v2 = new Vertex(b, a, 0f);
+            Vertex v3 = new Vertex(-b, a, 0f);
+            Vertex v4 = new Vertex(0f, b, a);
+            Vertex v5 = new Vertex(0f, -b, a);
+            Vertex v6 = new Vertex(-a, 0f, b);
+            Vertex v7 = new Vertex(0f, -b, -a);
+            Vertex v8 = new Vertex(a, 0f, -b);
+            Vertex v9 = new Vertex(a, 0f, b);
+            Vertex v10 = new Vertex(-a, 0f, -b);
+            Vertex v11 = new Vertex(b, -a, 0);
+            Vertex v12 = new Vertex(-b, -a, 0);
+            m.Add(v1);
+            m.Add(v2);
+            m.Add(v3);
+            m.Add(v4);
+            m.Add(v5);
+            m.Add(v6);
+            m.Add(v7);
+            m.Add(v8);
+            m.Add(v9);
+            m.Add(v10);
+            m.Add(v11);
+            m.Add(v12);
+
+            Triangle t1 = new Triangle(v1, v2, v3);
+            Triangle t2 = new Triangle(v4, v3, v2);
+            Triangle t3 = new Triangle(v4, v5, v6);
+            Triangle t4 = new Triangle(v4, v9, v5);
+            Triangle t5 = new Triangle(v1, v7, v8);
+            Triangle t6 = new Triangle(v1, v10, v7);
+            Triangle t7 = new Triangle(v5, v11, v12);
+            Triangle t8 = new Triangle(v7, v12, v11);
+            Triangle t9 = new Triangle(v3, v6, v10);
+            Triangle t10 = new Triangle(v12, v10, v6);
+            Triangle t11 = new Triangle(v2, v8, v9);
+            Triangle t12 = new Triangle(v11, v9, v8);
+            Triangle t13 = new Triangle(v4, v6, v3);
+            Triangle t14 = new Triangle(v4, v2, v9);
+            Triangle t15 = new Triangle(v1, v3, v10);
+            Triangle t16 = new Triangle(v1, v8, v2);
+            Triangle t17 = new Triangle(v7, v10, v12);
+            Triangle t18 = new Triangle(v7, v11, v8);
+            Triangle t19 = new Triangle(v5, v12, v6);
+            Triangle t20 = new Triangle(v5, v9, v11);
+            m.Add(t1);
+            m.Add(t2);
+            m.Add(t3);
+            m.Add(t4);
+            m.Add(t5);
+            m.Add(t6);
+            m.Add(t7);
+            m.Add(t8);
+            m.Add(t9);
+            m.Add(t10);
+            m.Add(t11);
+            m.Add(t12);
+            m.Add(t13);
+            m.Add(t14);
+            m.Add(t15);
+            m.Add(t16);
+            m.Add(t17);
+            m.Add(t18);
+            m.Add(t19);
+            m.Add(t20);
+
+            // strechy!
+            foreach (Vertex v in m.vertices)
+            {
+                v.X *= size.X;
+                v.Y *= size.Y;
+                v.Z *= size.Z;
+            }
+            foreach (Triangle t in m.triangles)
+            {
+                t.invertNormal();
+            }
+            m.DumpRaw(baseDir, primName, "Z extruded");
+
+            return m;
+        }
 
         public static void CalcNormals(Mesh mesh)
         {
@@ -1065,6 +1166,14 @@ namespace OpenSim.Region.Physics.Meshing
                         CalcNormals(mesh);
                     }
                     break;
+                case ProfileShape.HalfCircle:
+                    if (primShape.PathCurve == (byte)Extrusion.Curve1)
+                    {
+                        mesh = CreateSphereMesh(primName, primShape, size);
+                        CalcNormals(mesh);
+                    }
+                    break;
+
                 case ProfileShape.EquilateralTriangle:
                     mesh = CreatePrismMesh(primName, primShape, size);
                     CalcNormals(mesh);