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authorDahlia Trimble2008-11-29 11:02:14 +0000
committerDahlia Trimble2008-11-29 11:02:14 +0000
commitfdd238833163eb947986bfcdd09da82f6949a5f2 (patch)
tree6b90177758405f6106f4f5d4d75e3b98bf08053c /OpenSim/Region/Physics/Meshing/PrimMesher.cs
parentComment the ScriptSponsor and restore the indefinite lifetime for (diff)
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Update meshing code to sync with current PrimMesher.cs on forge.
Migrate sculpt meshing code to primMesher version. This should result in more accurate physical sculpted prim proxies. Remove much obsolete code from Region/Physics/Meshing
Diffstat (limited to 'OpenSim/Region/Physics/Meshing/PrimMesher.cs')
-rw-r--r--OpenSim/Region/Physics/Meshing/PrimMesher.cs163
1 files changed, 131 insertions, 32 deletions
diff --git a/OpenSim/Region/Physics/Meshing/PrimMesher.cs b/OpenSim/Region/Physics/Meshing/PrimMesher.cs
index 282bbd5..d79a480 100644
--- a/OpenSim/Region/Physics/Meshing/PrimMesher.cs
+++ b/OpenSim/Region/Physics/Meshing/PrimMesher.cs
@@ -1,5 +1,5 @@
1/* 1/*
2 * Copyright (c) Contributors, http://opensimulator.org/ 2 * Copyright (c) Contributors
3 * See CONTRIBUTORS.TXT for a full list of copyright holders. 3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 * 4 *
5 * Redistribution and use in source and binary forms, with or without 5 * Redistribution and use in source and binary forms, with or without
@@ -243,10 +243,11 @@ namespace PrimMesher
243 public int n2; 243 public int n2;
244 public int n3; 244 public int n3;
245 245
246 //// UVs 246 // uvs
247 //public int uv1; 247 public int uv1;
248 //public int uv2; 248 public int uv2;
249 //public int uv3; 249 public int uv3;
250
250 251
251 public Face(int v1, int v2, int v3) 252 public Face(int v1, int v2, int v3)
252 { 253 {
@@ -260,9 +261,10 @@ namespace PrimMesher
260 this.n2 = 0; 261 this.n2 = 0;
261 this.n3 = 0; 262 this.n3 = 0;
262 263
263 //this.uv1 = 0; 264 this.uv1 = 0;
264 //this.uv2 = 0; 265 this.uv2 = 0;
265 //this.uv3 = 0; 266 this.uv3 = 0;
267
266 } 268 }
267 269
268 public Face(int v1, int v2, int v3, int n1, int n2, int n3) 270 public Face(int v1, int v2, int v3, int n1, int n2, int n3)
@@ -277,9 +279,21 @@ namespace PrimMesher
277 this.n2 = n2; 279 this.n2 = n2;
278 this.n3 = n3; 280 this.n3 = n3;
279 281
280 //this.uv1 = 0; 282 this.uv1 = 0;
281 //this.uv2 = 0; 283 this.uv2 = 0;
282 //this.uv3 = 0; 284 this.uv3 = 0;
285 }
286
287 public Coord SurfaceNormal(List<Coord> coordList)
288 {
289 Coord c1 = coordList[this.v1];
290 Coord c2 = coordList[this.v2];
291 Coord c3 = coordList[this.v3];
292
293 Coord edge1 = new Coord(c2.X - c1.X, c2.Y - c1.Y, c2.Z - c1.Z);
294 Coord edge2 = new Coord(c3.X - c1.X, c3.Y - c1.Y, c3.Z - c1.Z);
295
296 return Coord.Cross(edge1, edge2).Normalize();
283 } 297 }
284 } 298 }
285 299
@@ -560,7 +574,7 @@ namespace PrimMesher
560 /// <summary> 574 /// <summary>
561 /// generates a profile for extrusion 575 /// generates a profile for extrusion
562 /// </summary> 576 /// </summary>
563 public class Profile 577 internal class Profile
564 { 578 {
565 private const float twoPi = 2.0f * (float)Math.PI; 579 private const float twoPi = 2.0f * (float)Math.PI;
566 580
@@ -569,6 +583,7 @@ namespace PrimMesher
569 internal List<Coord> vertexNormals; 583 internal List<Coord> vertexNormals;
570 internal List<float> us; 584 internal List<float> us;
571 internal List<UVCoord> faceUVs; 585 internal List<UVCoord> faceUVs;
586 internal List<int> faceNumbers;
572 587
573 internal Coord faceNormal = new Coord(0.0f, 0.0f, 1.0f); 588 internal Coord faceNormal = new Coord(0.0f, 0.0f, 1.0f);
574 internal Coord cutNormal1 = new Coord(); 589 internal Coord cutNormal1 = new Coord();
@@ -578,6 +593,8 @@ namespace PrimMesher
578 internal int numHollowVerts = 0; 593 internal int numHollowVerts = 0;
579 594
580 internal bool calcVertexNormals = false; 595 internal bool calcVertexNormals = false;
596 internal int bottomFaceNumber = 0;
597 internal int numPrimFaces = 0;
581 598
582 internal Profile() 599 internal Profile()
583 { 600 {
@@ -586,9 +603,10 @@ namespace PrimMesher
586 this.vertexNormals = new List<Coord>(); 603 this.vertexNormals = new List<Coord>();
587 this.us = new List<float>(); 604 this.us = new List<float>();
588 this.faceUVs = new List<UVCoord>(); 605 this.faceUVs = new List<UVCoord>();
606 this.faceNumbers = new List<int>();
589 } 607 }
590 608
591 public Profile(int sides, float profileStart, float profileEnd, float hollow, int hollowSides, bool createFaces, bool calcVertexNormals) 609 internal Profile(int sides, float profileStart, float profileEnd, float hollow, int hollowSides, bool createFaces, bool calcVertexNormals)
592 { 610 {
593 this.calcVertexNormals = calcVertexNormals; 611 this.calcVertexNormals = calcVertexNormals;
594 this.coords = new List<Coord>(); 612 this.coords = new List<Coord>();
@@ -596,6 +614,8 @@ namespace PrimMesher
596 this.vertexNormals = new List<Coord>(); 614 this.vertexNormals = new List<Coord>();
597 this.us = new List<float>(); 615 this.us = new List<float>();
598 this.faceUVs = new List<UVCoord>(); 616 this.faceUVs = new List<UVCoord>();
617 this.faceNumbers = new List<int>();
618
599 Coord center = new Coord(0.0f, 0.0f, 0.0f); 619 Coord center = new Coord(0.0f, 0.0f, 0.0f);
600 620
601 List<Coord> hollowCoords = new List<Coord>(); 621 List<Coord> hollowCoords = new List<Coord>();
@@ -674,7 +694,7 @@ namespace PrimMesher
674 hollowCoords.Add(newVert); 694 hollowCoords.Add(newVert);
675 if (this.calcVertexNormals) 695 if (this.calcVertexNormals)
676 { 696 {
677 if (sides < 5) 697 if (hollowSides < 5)
678 hollowNormals.Add(hollowAngles.normals[i].Invert()); 698 hollowNormals.Add(hollowAngles.normals[i].Invert());
679 else 699 else
680 hollowNormals.Add(new Coord(-angle.X, -angle.Y, 0.0f)); 700 hollowNormals.Add(new Coord(-angle.X, -angle.Y, 0.0f));
@@ -689,7 +709,7 @@ namespace PrimMesher
689 709
690 for (int i = 0; i < numAngles; i++) 710 for (int i = 0; i < numAngles; i++)
691 { 711 {
692 //int iNext = i == numAngles ? i + 1 : 0; 712 int iNext = i == numAngles ? i + 1 : 0;
693 angle = angles.angles[i]; 713 angle = angles.angles[i];
694 newVert.X = angle.X * xScale; 714 newVert.X = angle.X * xScale;
695 newVert.Y = angle.Y * yScale; 715 newVert.Y = angle.Y * yScale;
@@ -884,21 +904,46 @@ namespace PrimMesher
884 hollowNormals = null; 904 hollowNormals = null;
885 hollowUs = null; 905 hollowUs = null;
886 906
907 if (calcVertexNormals)
908 { // calculate prim face numbers
909 // I know it's ugly but so is the whole concept of prim face numbers
910 int faceNum = 1;
911 int startVert = hasProfileCut && !hasHollow ? 1 : 0;
912 if (startVert > 0)
913 this.faceNumbers.Add(0);
914 for (int i = 0; i < numOuterVerts; i++)
915 this.faceNumbers.Add(sides < 5 ? faceNum++ : faceNum);
916 if (sides > 4)
917 faceNum++;
918 if (hasProfileCut)
919 this.faceNumbers.Add(0);
920 for (int i = 0; i < numHollowVerts; i++)
921 this.faceNumbers.Add(faceNum++);
922 this.bottomFaceNumber = faceNum++;
923 if (hasHollow && hasProfileCut)
924 this.faceNumbers.Add(faceNum++);
925 for (int i = 0; i < this.faceNumbers.Count; i++)
926 if (this.faceNumbers[i] == 0)
927 this.faceNumbers[i] = faceNum++;
928
929 this.numPrimFaces = faceNum;
930 }
931
887 } 932 }
888 933
889 public void MakeFaceUVs() 934 internal void MakeFaceUVs()
890 { 935 {
891 this.faceUVs = new List<UVCoord>(); 936 this.faceUVs = new List<UVCoord>();
892 foreach (Coord c in this.coords) 937 foreach (Coord c in this.coords)
893 this.faceUVs.Add(new UVCoord(1.0f - (0.5f + c.X), 1.0f - (0.5f - c.Y))); 938 this.faceUVs.Add(new UVCoord(1.0f - (0.5f + c.X), 1.0f - (0.5f - c.Y)));
894 } 939 }
895 940
896 public Profile Clone() 941 internal Profile Clone()
897 { 942 {
898 return this.Clone(true); 943 return this.Clone(true);
899 } 944 }
900 945
901 public Profile Clone(bool needFaces) 946 internal Profile Clone(bool needFaces)
902 { 947 {
903 Profile clone = new Profile(); 948 Profile clone = new Profile();
904 949
@@ -914,6 +959,7 @@ namespace PrimMesher
914 clone.cutNormal1 = this.cutNormal1; 959 clone.cutNormal1 = this.cutNormal1;
915 clone.cutNormal2 = this.cutNormal2; 960 clone.cutNormal2 = this.cutNormal2;
916 clone.us.AddRange(this.us); 961 clone.us.AddRange(this.us);
962 clone.faceNumbers.AddRange(this.faceNumbers);
917 } 963 }
918 clone.numOuterVerts = this.numOuterVerts; 964 clone.numOuterVerts = this.numOuterVerts;
919 clone.numHollowVerts = this.numHollowVerts; 965 clone.numHollowVerts = this.numHollowVerts;
@@ -921,12 +967,12 @@ namespace PrimMesher
921 return clone; 967 return clone;
922 } 968 }
923 969
924 public void AddPos(Coord v) 970 internal void AddPos(Coord v)
925 { 971 {
926 this.AddPos(v.X, v.Y, v.Z); 972 this.AddPos(v.X, v.Y, v.Z);
927 } 973 }
928 974
929 public void AddPos(float x, float y, float z) 975 internal void AddPos(float x, float y, float z)
930 { 976 {
931 int i; 977 int i;
932 int numVerts = this.coords.Count; 978 int numVerts = this.coords.Count;
@@ -942,7 +988,7 @@ namespace PrimMesher
942 } 988 }
943 } 989 }
944 990
945 public void AddRot(Quat q) 991 internal void AddRot(Quat q)
946 { 992 {
947 int i; 993 int i;
948 int numVerts = this.coords.Count; 994 int numVerts = this.coords.Count;
@@ -963,7 +1009,7 @@ namespace PrimMesher
963 } 1009 }
964 } 1010 }
965 1011
966 public void Scale(float x, float y) 1012 internal void Scale(float x, float y)
967 { 1013 {
968 int i; 1014 int i;
969 int numVerts = this.coords.Count; 1015 int numVerts = this.coords.Count;
@@ -981,7 +1027,7 @@ namespace PrimMesher
981 /// <summary> 1027 /// <summary>
982 /// Changes order of the vertex indices and negates the center vertex normal. Does not alter vertex normals of radial vertices 1028 /// Changes order of the vertex indices and negates the center vertex normal. Does not alter vertex normals of radial vertices
983 /// </summary> 1029 /// </summary>
984 public void FlipNormals() 1030 internal void FlipNormals()
985 { 1031 {
986 int i; 1032 int i;
987 int numFaces = this.faces.Count; 1033 int numFaces = this.faces.Count;
@@ -1021,7 +1067,7 @@ namespace PrimMesher
1021 } 1067 }
1022 } 1068 }
1023 1069
1024 public void AddValue2FaceVertexIndices(int num) 1070 internal void AddValue2FaceVertexIndices(int num)
1025 { 1071 {
1026 int numFaces = this.faces.Count; 1072 int numFaces = this.faces.Count;
1027 Face tmpFace; 1073 Face tmpFace;
@@ -1036,7 +1082,7 @@ namespace PrimMesher
1036 } 1082 }
1037 } 1083 }
1038 1084
1039 public void AddValue2FaceNormalIndices(int num) 1085 internal void AddValue2FaceNormalIndices(int num)
1040 { 1086 {
1041 if (this.calcVertexNormals) 1087 if (this.calcVertexNormals)
1042 { 1088 {
@@ -1054,7 +1100,7 @@ namespace PrimMesher
1054 } 1100 }
1055 } 1101 }
1056 1102
1057 public void DumpRaw(String path, String name, String title) 1103 internal void DumpRaw(String path, String name, String title)
1058 { 1104 {
1059 if (path == null) 1105 if (path == null)
1060 return; 1106 return;
@@ -1113,6 +1159,12 @@ namespace PrimMesher
1113 private bool normalsProcessed = false; 1159 private bool normalsProcessed = false;
1114 public bool viewerMode = false; 1160 public bool viewerMode = false;
1115 1161
1162 public int numPrimFaces = 0;
1163
1164 /// <summary>
1165 /// Human readable string representation of the parameters used to create a mesh.
1166 /// </summary>
1167 /// <returns></returns>
1116 public string ParamsToDisplayString() 1168 public string ParamsToDisplayString()
1117 { 1169 {
1118 string s = ""; 1170 string s = "";
@@ -1141,7 +1193,14 @@ namespace PrimMesher
1141 return s; 1193 return s;
1142 } 1194 }
1143 1195
1144 1196 /// <summary>
1197 /// Constructs a PrimMesh object and creates the profile for extrusion.
1198 /// </summary>
1199 /// <param name="sides"></param>
1200 /// <param name="profileStart"></param>
1201 /// <param name="profileEnd"></param>
1202 /// <param name="hollow"></param>
1203 /// <param name="hollowSides"></param>
1145 public PrimMesh(int sides, float profileStart, float profileEnd, float hollow, int hollowSides) 1204 public PrimMesh(int sides, float profileStart, float profileEnd, float hollow, int hollowSides)
1146 { 1205 {
1147 this.coords = new List<Coord>(); 1206 this.coords = new List<Coord>();
@@ -1174,6 +1233,9 @@ namespace PrimMesher
1174 this.hasHollow = (this.hollow > 0.001f); 1233 this.hasHollow = (this.hollow > 0.001f);
1175 } 1234 }
1176 1235
1236 /// <summary>
1237 /// Extrudes a profile along a straight line path. Used for prim types box, cylinder, and prism.
1238 /// </summary>
1177 public void ExtrudeLinear() 1239 public void ExtrudeLinear()
1178 { 1240 {
1179 this.coords = new List<Coord>(); 1241 this.coords = new List<Coord>();
@@ -1248,6 +1310,7 @@ namespace PrimMesher
1248 hollow *= 1.414f; 1310 hollow *= 1.414f;
1249 1311
1250 Profile profile = new Profile(this.sides, this.profileStart, this.profileEnd, hollow, this.hollowSides, true, calcVertexNormals); 1312 Profile profile = new Profile(this.sides, this.profileStart, this.profileEnd, hollow, this.hollowSides, true, calcVertexNormals);
1313 this.numPrimFaces = profile.numPrimFaces;
1251 1314
1252 int cut1Vert = -1; 1315 int cut1Vert = -1;
1253 int cut2Vert = -1; 1316 int cut2Vert = -1;
@@ -1398,7 +1461,7 @@ namespace PrimMesher
1398 if (u2 < 0.1f) 1461 if (u2 < 0.1f)
1399 u2 = 1.0f; 1462 u2 = 1.0f;
1400 1463
1401 newViewerFace2.primFaceNumber = newViewerFace1.primFaceNumber = whichVert + 1; 1464 //newViewerFace2.primFaceNumber = newViewerFace1.primFaceNumber = whichVert + 1;
1402 } 1465 }
1403 1466
1404 newViewerFace1.uv1.U = u1; 1467 newViewerFace1.uv1.U = u1;
@@ -1462,6 +1525,8 @@ namespace PrimMesher
1462 } 1525 }
1463 } 1526 }
1464 1527
1528 newViewerFace2.primFaceNumber = newViewerFace1.primFaceNumber = newLayer.faceNumbers[whichVert];
1529
1465 this.viewerFaces.Add(newViewerFace1); 1530 this.viewerFaces.Add(newViewerFace1);
1466 this.viewerFaces.Add(newViewerFace2); 1531 this.viewerFaces.Add(newViewerFace2);
1467 1532
@@ -1492,7 +1557,7 @@ namespace PrimMesher
1492 // add the top faces to the viewerFaces list here 1557 // add the top faces to the viewerFaces list here
1493 Coord faceNormal = newLayer.faceNormal; 1558 Coord faceNormal = newLayer.faceNormal;
1494 ViewerFace newViewerFace = new ViewerFace(); 1559 ViewerFace newViewerFace = new ViewerFace();
1495 newViewerFace.primFaceNumber = 0; 1560 newViewerFace.primFaceNumber = newLayer.bottomFaceNumber;
1496 foreach (Face face in newLayer.faces) 1561 foreach (Face face in newLayer.faces)
1497 { 1562 {
1498 newViewerFace.v1 = newLayer.coords[face.v1 - coordsLen]; 1563 newViewerFace.v1 = newLayer.coords[face.v1 - coordsLen];
@@ -1513,6 +1578,9 @@ namespace PrimMesher
1513 } 1578 }
1514 } 1579 }
1515 1580
1581 /// <summary>
1582 /// Extrude a profile into a circular path prim mesh. Used for prim types torus, tube, and ring.
1583 /// </summary>
1516 public void ExtrudeCircular() 1584 public void ExtrudeCircular()
1517 { 1585 {
1518 this.coords = new List<Coord>(); 1586 this.coords = new List<Coord>();
@@ -1615,6 +1683,7 @@ namespace PrimMesher
1615 needEndFaces = true; 1683 needEndFaces = true;
1616 1684
1617 Profile profile = new Profile(this.sides, this.profileStart, this.profileEnd, hollow, this.hollowSides, needEndFaces, calcVertexNormals); 1685 Profile profile = new Profile(this.sides, this.profileStart, this.profileEnd, hollow, this.hollowSides, needEndFaces, calcVertexNormals);
1686 this.numPrimFaces = profile.numPrimFaces;
1618 1687
1619 int cut1Vert = -1; 1688 int cut1Vert = -1;
1620 int cut2Vert = -1; 1689 int cut2Vert = -1;
@@ -1787,7 +1856,7 @@ namespace PrimMesher
1787 if (u2 < 0.1f) 1856 if (u2 < 0.1f)
1788 u2 = 1.0f; 1857 u2 = 1.0f;
1789 1858
1790 newViewerFace2.primFaceNumber = newViewerFace1.primFaceNumber = whichVert + 1; 1859 //newViewerFace2.primFaceNumber = newViewerFace1.primFaceNumber = whichVert + 1;
1791 } 1860 }
1792 1861
1793 newViewerFace1.uv1.U = u1; 1862 newViewerFace1.uv1.U = u1;
@@ -1865,6 +1934,7 @@ namespace PrimMesher
1865 } 1934 }
1866 } 1935 }
1867 1936
1937 newViewerFace1.primFaceNumber = newViewerFace2.primFaceNumber = newLayer.faceNumbers[whichVert];
1868 this.viewerFaces.Add(newViewerFace1); 1938 this.viewerFaces.Add(newViewerFace1);
1869 this.viewerFaces.Add(newViewerFace2); 1939 this.viewerFaces.Add(newViewerFace2);
1870 1940
@@ -1894,7 +1964,7 @@ namespace PrimMesher
1894 // add the bottom faces to the viewerFaces list here 1964 // add the bottom faces to the viewerFaces list here
1895 Coord faceNormal = newLayer.faceNormal; 1965 Coord faceNormal = newLayer.faceNormal;
1896 ViewerFace newViewerFace = new ViewerFace(); 1966 ViewerFace newViewerFace = new ViewerFace();
1897 newViewerFace.primFaceNumber = 0; 1967 newViewerFace.primFaceNumber = newLayer.bottomFaceNumber;
1898 foreach (Face face in newLayer.faces) 1968 foreach (Face face in newLayer.faces)
1899 { 1969 {
1900 newViewerFace.v1 = newLayer.coords[face.v1 - coordsLen]; 1970 newViewerFace.v1 = newLayer.coords[face.v1 - coordsLen];
@@ -1932,6 +2002,11 @@ namespace PrimMesher
1932 return SurfaceNormal(this.coords[face.v1], this.coords[face.v2], this.coords[face.v3]); 2002 return SurfaceNormal(this.coords[face.v1], this.coords[face.v2], this.coords[face.v3]);
1933 } 2003 }
1934 2004
2005 /// <summary>
2006 /// Calculate the surface normal for a face in the list of faces
2007 /// </summary>
2008 /// <param name="faceIndex"></param>
2009 /// <returns></returns>
1935 public Coord SurfaceNormal(int faceIndex) 2010 public Coord SurfaceNormal(int faceIndex)
1936 { 2011 {
1937 int numFaces = this.faces.Count; 2012 int numFaces = this.faces.Count;
@@ -1941,6 +2016,9 @@ namespace PrimMesher
1941 return SurfaceNormal(this.faces[faceIndex]); 2016 return SurfaceNormal(this.faces[faceIndex]);
1942 } 2017 }
1943 2018
2019 /// <summary>
2020 /// Calculate surface normals for all of the faces in the list of faces in this mesh
2021 /// </summary>
1944 public void CalcNormals() 2022 public void CalcNormals()
1945 { 2023 {
1946 if (normalsProcessed) 2024 if (normalsProcessed)
@@ -1968,6 +2046,12 @@ namespace PrimMesher
1968 } 2046 }
1969 } 2047 }
1970 2048
2049 /// <summary>
2050 /// Adds a value to each XYZ vertex coordinate in the mesh
2051 /// </summary>
2052 /// <param name="x"></param>
2053 /// <param name="y"></param>
2054 /// <param name="z"></param>
1971 public void AddPos(float x, float y, float z) 2055 public void AddPos(float x, float y, float z)
1972 { 2056 {
1973 int i; 2057 int i;
@@ -1984,9 +2068,12 @@ namespace PrimMesher
1984 } 2068 }
1985 } 2069 }
1986 2070
2071 /// <summary>
2072 /// Rotates the mesh
2073 /// </summary>
2074 /// <param name="q"></param>
1987 public void AddRot(Quat q) 2075 public void AddRot(Quat q)
1988 { 2076 {
1989 Console.WriteLine("AddRot(" + q.ToString() + ")");
1990 int i; 2077 int i;
1991 int numVerts = this.coords.Count; 2078 int numVerts = this.coords.Count;
1992 2079
@@ -2020,6 +2107,12 @@ namespace PrimMesher
2020 2107
2021 } 2108 }
2022 2109
2110 /// <summary>
2111 /// Scales the mesh
2112 /// </summary>
2113 /// <param name="x"></param>
2114 /// <param name="y"></param>
2115 /// <param name="z"></param>
2023 public void Scale(float x, float y, float z) 2116 public void Scale(float x, float y, float z)
2024 { 2117 {
2025 int i; 2118 int i;
@@ -2046,6 +2139,12 @@ namespace PrimMesher
2046 2139
2047 } 2140 }
2048 2141
2142 /// <summary>
2143 /// Dumps the mesh to a Blender compatible "Raw" format file
2144 /// </summary>
2145 /// <param name="path"></param>
2146 /// <param name="name"></param>
2147 /// <param name="title"></param>
2049 public void DumpRaw(String path, String name, String title) 2148 public void DumpRaw(String path, String name, String title)
2050 { 2149 {
2051 if (path == null) 2150 if (path == null)