private Mesh CreateMeshFromPrimMesher(string primName, PrimitiveBaseShape primShape, Vector3 size, float lod,
ulong key)
{
PrimMesh primMesh;
SculptMesh sculptMesh;
List<Coord> coords = new List<Coord>();
List<Face> faces = new List<Face>();
Image idata = null;
string decodedSculptFileName = "";
if (primShape.SculptEntry)
{
if (((SculptType) primShape.SculptType & SculptType.Mesh) == SculptType.Mesh)
{
if (!UseMeshesPhysicsMesh)
return null;
MainConsole.Instance.Debug("[MESH]: experimental mesh proxy generation");
OSD meshOsd = null;
if (primShape.SculptData == null || primShape.SculptData.Length <= 0)
{
//MainConsole.Instance.Error("[MESH]: asset data is zero length");
return null;
}
long start = 0;
using (MemoryStream data = new MemoryStream(primShape.SculptData))
{
try
{
meshOsd = OSDParser.DeserializeLLSDBinary(data);
}
catch (Exception e)
{
MainConsole.Instance.Error("[MESH]: Exception deserializing mesh asset header:" + e);
}
start = data.Position;
}
if (meshOsd is OSDMap)
{
OSDMap map = (OSDMap) meshOsd;
OSDMap physicsParms = new OSDMap();
if (map.ContainsKey("physics_cached"))
{
OSD cachedMeshMap = map["physics_cached"]; // cached data from Aurora
Mesh cachedMesh = new Mesh(key);
cachedMesh.Deserialize(cachedMeshMap);
cachedMesh.WasCached = true;
return cachedMesh; //Return here, we found all of the info right here
}
if (map.ContainsKey("physics_shape"))
physicsParms = (OSDMap) map["physics_shape"]; // old asset format
if (physicsParms.Count == 0 && map.ContainsKey("physics_mesh"))
physicsParms = (OSDMap) map["physics_mesh"]; // new asset format
if (physicsParms.Count == 0 && map.ContainsKey("physics_convex"))
// convex hull format, which we can't read, so instead
// read the highest lod that exists, and use it instead
physicsParms = (OSDMap) map["high_lod"];
int physOffset = physicsParms["offset"].AsInteger() + (int) start;
int physSize = physicsParms["size"].AsInteger();
if (physOffset < 0 || physSize == 0)
return null; // no mesh data in asset
OSD decodedMeshOsd = new OSD();
byte[] meshBytes = new byte[physSize];
Buffer.BlockCopy(primShape.SculptData, physOffset, meshBytes, 0, physSize);
try
{
using (MemoryStream inMs = new MemoryStream(meshBytes))
{
using (MemoryStream outMs = new MemoryStream())
{
using (ZOutputStream zOut = new ZOutputStream(outMs))
{
byte[] readBuffer = new byte[2048];
int readLen = 0;
while ((readLen = inMs.Read(readBuffer, 0, readBuffer.Length)) > 0)
{
zOut.Write(readBuffer, 0, readLen);
}
zOut.Flush();
outMs.Seek(0, SeekOrigin.Begin);
byte[] decompressedBuf = outMs.GetBuffer();
decodedMeshOsd = OSDParser.DeserializeLLSDBinary(decompressedBuf);
}
}
}
}
catch (Exception e)
{
MainConsole.Instance.Error("[MESH]: exception decoding physical mesh: " + e);
return null;
}
OSDArray decodedMeshOsdArray = null;
// physics_shape is an array of OSDMaps, one for each submesh
if (decodedMeshOsd is OSDArray)
{
decodedMeshOsdArray = (OSDArray) decodedMeshOsd;
foreach (OSD subMeshOsd in decodedMeshOsdArray)
{
if (subMeshOsd is OSDMap)
{
OSDMap subMeshMap = (OSDMap) subMeshOsd;
// As per http://wiki.secondlife.com/wiki/Mesh/Mesh_Asset_Format, some Mesh Level
// of Detail Blocks (maps) contain just a NoGeometry key to signal there is no
// geometry for this submesh.
if (subMeshMap.ContainsKey("NoGeometry") && (subMeshMap["NoGeometry"]))
continue;
Vector3 posMax = new Vector3(0.5f, 0.5f, 0.5f);
Vector3 posMin = new Vector3(-0.5f, -0.5f, -0.5f);
if (subMeshMap.ContainsKey("PositionDomain"))
//Optional, so leave the max and min values otherwise
{
posMax = ((OSDMap) subMeshMap["PositionDomain"])["Max"].AsVector3();
posMin = ((OSDMap) subMeshMap["PositionDomain"])["Min"].AsVector3();
}
ushort faceIndexOffset = (ushort) coords.Count;
byte[] posBytes = subMeshMap["Position"].AsBinary();
for (int i = 0; i < posBytes.Length; i += 6)
{
ushort uX = Utils.BytesToUInt16(posBytes, i);
ushort uY = Utils.BytesToUInt16(posBytes, i + 2);
ushort uZ = Utils.BytesToUInt16(posBytes, i + 4);
Coord c = new Coord(
Utils.UInt16ToFloat(uX, posMin.X, posMax.X)*size.X,
Utils.UInt16ToFloat(uY, posMin.Y, posMax.Y)*size.Y,
Utils.UInt16ToFloat(uZ, posMin.Z, posMax.Z)*size.Z);
coords.Add(c);
}
byte[] triangleBytes = subMeshMap["TriangleList"].AsBinary();
for (int i = 0; i < triangleBytes.Length; i += 6)
{
ushort v1 = (ushort) (Utils.BytesToUInt16(triangleBytes, i) + faceIndexOffset);
ushort v2 =
(ushort) (Utils.BytesToUInt16(triangleBytes, i + 2) + faceIndexOffset);
ushort v3 =
(ushort) (Utils.BytesToUInt16(triangleBytes, i + 4) + faceIndexOffset);
Face f = new Face(v1, v2, v3);
faces.Add(f);
}
}
}
}
}
}
else
{
if (cacheSculptMaps && primShape.SculptTexture != UUID.Zero)
{
decodedSculptFileName = System.IO.Path.Combine(decodedSculptMapPath,
"smap_" + primShape.SculptTexture.ToString());
try
{
if (File.Exists(decodedSculptFileName))
{
idata = Image.FromFile(decodedSculptFileName);
}
}
catch (Exception e)
{
MainConsole.Instance.Error("[SCULPT]: unable to load cached sculpt map " +
decodedSculptFileName + " " + e);
}
//if (idata != null)
// MainConsole.Instance.Debug("[SCULPT]: loaded cached map asset for map ID: " + primShape.SculptTexture.ToString());
}
if (idata == null)
{
if (primShape.SculptData == null || primShape.SculptData.Length == 0)
return null;
try
{
idata = m_j2kDecoder.DecodeToImage(primShape.SculptData);
if (idata != null && cacheSculptMaps &&
(cacheSculptAlphaMaps || (((ImageFlags) (idata.Flags) & ImageFlags.HasAlpha) == 0)))
{
try
{
idata.Save(decodedSculptFileName, ImageFormat.MemoryBmp);
}
catch (Exception e)
{
MainConsole.Instance.Error("[SCULPT]: unable to cache sculpt map " +
decodedSculptFileName + " " +
e);
}
}
}
catch (DllNotFoundException)
{
MainConsole.Instance.Error(
"[PHYSICS]: OpenJpeg is not installed correctly on this system. Physics Proxy generation failed. Often times this is because of an old version of GLIBC. You must have version 2.4 or above!");
return null;
}
catch (IndexOutOfRangeException)
{
MainConsole.Instance.Error(
"[PHYSICS]: OpenJpeg was unable to decode this. Physics Proxy generation failed");
return null;
}
catch (Exception ex)
{
MainConsole.Instance.Error(
"[PHYSICS]: Unable to generate a Sculpty physics proxy. Sculpty texture decode failed: " +
ex);
return null;
}
}
SculptMesh.SculptType sculptType;
switch ((SculptType) primShape.SculptType)
{
case SculptType.Cylinder:
sculptType = SculptMesh.SculptType.cylinder;
break;
case SculptType.Plane:
sculptType = SculptMesh.SculptType.plane;
break;
case SculptType.Torus:
sculptType = SculptMesh.SculptType.torus;
break;
case SculptType.Sphere:
sculptType = SculptMesh.SculptType.sphere;
break;
default:
sculptType = SculptMesh.SculptType.plane;
break;
}
bool mirror = ((primShape.SculptType & 128) != 0);
bool invert = ((primShape.SculptType & 64) != 0);
if (idata == null)
return null;
sculptMesh = new SculptMesh((Bitmap) idata, sculptType, (int) lod, false, mirror, invert);
idata.Dispose();
idata = null;
sculptMesh.DumpRaw(baseDir, primName, "primMesh");
sculptMesh.Scale(size.X, size.Y, size.Z);
coords = sculptMesh.coords;
faces = sculptMesh.faces;
}
}
else
{
float pathShearX = primShape.PathShearX < 128
? primShape.PathShearX*0.01f
: (primShape.PathShearX - 256)*0.01f;
float pathShearY = primShape.PathShearY < 128
? primShape.PathShearY*0.01f
: (primShape.PathShearY - 256)*0.01f;
float pathBegin = primShape.PathBegin*2.0e-5f;
float pathEnd = 1.0f - primShape.PathEnd*2.0e-5f;
float pathScaleX = (primShape.PathScaleX - 100)*0.01f;
float pathScaleY = (primShape.PathScaleY - 100)*0.01f;
float profileBegin = primShape.ProfileBegin*2.0e-5f;
float profileEnd = 1.0f - primShape.ProfileEnd*2.0e-5f;
float profileHollow = primShape.ProfileHollow*2.0e-5f;
if (profileHollow > 0.95f)
{
if (profileHollow > 0.99f)
profileHollow = 0.99f;
float sizeX = primShape.Scale.X - (primShape.Scale.X*profileHollow);
if (sizeX < 0.1f) //If its > 0.1, its fine to mesh at the small hollow
profileHollow = 0.95f + (sizeX/2); //Scale the rest by how large the size of the prim is
}
int sides = 4;
switch ((primShape.ProfileCurve & 0x07))
{
case (byte) ProfileShape.EquilateralTriangle:
sides = 3;
break;
case (byte) ProfileShape.Circle:
sides = 24;
break;
case (byte) ProfileShape.HalfCircle:
sides = 24;
profileBegin = 0.5f*profileBegin + 0.5f;
profileEnd = 0.5f*profileEnd + 0.5f;
break;
}
int hollowSides = sides;
switch (primShape.HollowShape)
{
case HollowShape.Circle:
hollowSides = 24;
break;
case HollowShape.Square:
hollowSides = 4;
break;
case HollowShape.Triangle:
hollowSides = 3;
break;
}
primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (primMesh.errorMessage != null)
if (primMesh.errorMessage.Length > 0)
MainConsole.Instance.Error("[ERROR] " + primMesh.errorMessage);
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte) Extrusion.Straight || primShape.PathCurve == (byte) Extrusion.Flexible)
{
primMesh.twistBegin = primShape.PathTwistBegin*18/10;
primMesh.twistEnd = primShape.PathTwist*18/10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f) profileBegin = 0.0f;
if (profileEnd > 1.0f) profileEnd = 1.0f;
}
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.Extrude(primShape.PathCurve == (byte) Extrusion.Straight
? PathType.Linear
: PathType.Flexible);
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex, primName, primMesh);
return null;
}
}
else
{
primMesh.holeSizeX = (200 - primShape.PathScaleX)*0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY)*0.01f;
primMesh.radius = 0.01f*primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + 0.015f*primShape.PathRevolutions;
primMesh.skew = 0.01f*primShape.PathSkew;
primMesh.twistBegin = primShape.PathTwistBegin*36/10;
primMesh.twistEnd = primShape.PathTwist*36/10;
primMesh.taperX = primShape.PathTaperX*0.01f;
primMesh.taperY = primShape.PathTaperY*0.01f;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f) profileBegin = 0.0f;
if (profileEnd > 1.0f) profileEnd = 1.0f;
}
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.Extrude(PathType.Circular);
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex, primName, primMesh);
return null;
}
}
primMesh.DumpRaw(baseDir, primName, "primMesh");
primMesh.Scale(size.X, size.Y, size.Z);
coords = primMesh.coords;
faces = primMesh.faces;
primMesh = null;
}
Mesh mesh = new Mesh(key);
//mesh.m_triangles = faces;
//mesh.m_vertices = coords;
// Add the corresponding triangles to the mesh
mesh.Set(coords, faces);
coords.Clear();
faces.Clear();
coords = null;
faces = null;
return mesh;
}
private void ReportPrimError(string message, string primName, PrimMesh primMesh)
{
MainConsole.Instance.Error(message);
MainConsole.Instance.Error("\nPrim Name: " + primName);
MainConsole.Instance.Error("****** PrimMesh Parameters ******\n" + primMesh.ParamsToDisplayString());
}
/// <summary>
/// Generate the co-ords and faces necessary to construct a mesh from the shape data the accompanies a prim.
/// </summary>
/// <param name="primName"></param>
/// <param name="primShape"></param>
/// <param name="size"></param>
/// <param name="coords">Coords are added to this list by the method.</param>
/// <param name="faces">Faces are added to this list by the method.</param>
/// <returns>true if coords and faces were successfully generated, false if not</returns>
bool GenerateFromPrimShapeData(string primName, PrimitiveBaseShape primShape, Vector3 size,
float lod, out List<Coord> coords, out List<Face> faces)
{
PrimMesh primMesh;
coords = new List<Coord>();
faces = new List<Face>();
float pathShearX = primShape.PathShearX < 128
? primShape.PathShearX * 0.01f
: (primShape.PathShearX - 256) * 0.01f;
float pathShearY = primShape.PathShearY < 128
? primShape.PathShearY * 0.01f
: (primShape.PathShearY - 256) * 0.01f;
float pathBegin = primShape.PathBegin * 2.0e-5f;
float pathEnd = 1.0f - primShape.PathEnd * 2.0e-5f;
float pathScaleX = (primShape.PathScaleX - 100) * 0.01f;
float pathScaleY = (primShape.PathScaleY - 100) * 0.01f;
float profileBegin = primShape.ProfileBegin * 2.0e-5f;
float profileEnd = 1.0f - primShape.ProfileEnd * 2.0e-5f;
float profileHollow = primShape.ProfileHollow * 2.0e-5f;
if (profileHollow > 0.95f)
{
if (profileHollow > 0.99f)
profileHollow = 0.99f;
float sizeX = primShape.Scale.X - (primShape.Scale.X*profileHollow);
if (sizeX < 0.1f) //If its > 0.1, its fine to mesh at the small hollow
profileHollow = 0.95f + (sizeX/2); //Scale the rest by how large the size of the prim is
}
int sides = 4;
// defaults for LOD
LevelOfDetail iLOD = (LevelOfDetail)lod;
switch (iLOD)
{
case LevelOfDetail.High:
sides = 24;
break;
case LevelOfDetail.Medium:
sides = 12;
break;
case LevelOfDetail.Low:
sides = 6;
break;
case LevelOfDetail.VeryLow:
sides = 3;
break;
default:
sides = 24;
break;
}
switch ((primShape.ProfileCurve & 0x07))
{
case (byte) ProfileShape.EquilateralTriangle:
sides = 3;
break;
case (byte) ProfileShape.Circle:
break; // use lod set above
case (byte) ProfileShape.HalfCircle:
profileBegin = 0.5f * profileBegin + 0.5f;
profileEnd = 0.5f * profileEnd + 0.5f;
break; // use lod already set and...
}
int hollowSides = sides;
// default lod for hollows
switch (iLOD)
{
case LevelOfDetail.High:
hollowSides = 24;
break;
case LevelOfDetail.Medium:
hollowSides = 12;
break;
case LevelOfDetail.Low:
hollowSides = 6;
break;
case LevelOfDetail.VeryLow:
hollowSides = 3;
break;
default:
hollowSides = 24;
break;
}
switch (primShape.HollowShape)
{
case HollowShape.Circle:
//hollowSides = 24;
break; // use lod preset
case HollowShape.Square:
hollowSides = 4;
break;
case HollowShape.Triangle:
hollowSides = 3;
break;
}
primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (primMesh.errorMessage != null)
if (primMesh.errorMessage.Length > 0)
MainConsole.Instance.Error("[ERROR] " + primMesh.errorMessage);
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte)Extrusion.Straight || primShape.PathCurve == (byte)Extrusion.Flexible)
{
primMesh.twistBegin = primShape.PathTwistBegin * 18 / 10;
primMesh.twistEnd = primShape.PathTwist * 18 / 10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError ("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
profileBegin = 0.0f;
if (profileEnd > 1.0f)
profileEnd = 1.0f;
}
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.Extrude (primShape.PathCurve == (byte)Extrusion.Straight
? PathType.Linear
: PathType.Flexible);
} catch (Exception ex)
{
ReportPrimError ("Extrusion failure: exception: " + ex, primName, primMesh);
return false;
}
} else
{
primMesh.holeSizeX = (200 - primShape.PathScaleX) * 0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY) * 0.01f;
primMesh.radius = 0.01f * primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + 0.015f * primShape.PathRevolutions;
primMesh.skew = 0.01f * primShape.PathSkew;
primMesh.twistBegin = primShape.PathTwistBegin * 36 / 10;
primMesh.twistEnd = primShape.PathTwist * 36 / 10;
primMesh.taperX = primShape.PathTaperX * 0.01f;
primMesh.taperY = primShape.PathTaperY * 0.01f;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError ("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
profileBegin = 0.0f;
if (profileEnd > 1.0f)
profileEnd = 1.0f;
}
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.Extrude (PathType.Circular);
} catch (Exception ex)
{
ReportPrimError ("Extrusion failure: exception: " + ex, primName, primMesh);
return false;
}
}
primMesh.DumpRaw(baseDir, primName, "primMesh");
primMesh.Scale(size.X, size.Y, size.Z);
coords = primMesh.coords;
faces = primMesh.faces;
return true;
}
/// <summary>
/// Generate a mesh from the shape data the accompanies a prim.
/// </summary>
/// <param name="primName"></param>
/// <param name="primShape"></param>
/// <param name="size"></param>
/// <param name="key"></param>
/// <returns>created mesh or null if invalid</returns>
Mesh GenerateFromPrimShapeData (string primName, PrimitiveBaseShape primShape, Vector3 size, float lod, ulong key)
{
PrimMesh primMesh;
float pathShearX = primShape.PathShearX < 128
? primShape.PathShearX * 0.01f
: (primShape.PathShearX - 256) * 0.01f;
float pathShearY = primShape.PathShearY < 128
? primShape.PathShearY * 0.01f
: (primShape.PathShearY - 256) * 0.01f;
float pathBegin = primShape.PathBegin * 2.0e-5f;
float pathEnd = 1.0f - (primShape.PathEnd * 2.0e-5f);
float pathScaleX = (primShape.PathScaleX - 100) * 0.01f;
float pathScaleY = (primShape.PathScaleY - 100) * 0.01f;
float profileBegin = primShape.ProfileBegin * 2.0e-5f;
float profileEnd = 1.0f - (primShape.ProfileEnd * 2.0e-5f);
float profileHollow = primShape.ProfileHollow * 2.0e-5f;
if (profileHollow > 0.95f) {
if (profileHollow > 0.99f)
profileHollow = 0.99f;
float sizeX = primShape.Scale.X - (primShape.Scale.X * profileHollow);
if (sizeX < 0.1f) // If its > 0.1, its fine to mesh at the small hollow
profileHollow = 0.95f + (sizeX / 2); // Scale the rest by how large the size of the prim is
}
int sides = 4; // assume the prim is square
switch ((primShape.ProfileCurve & 0x07)) {
case (byte)ProfileShape.EquilateralTriangle:
sides = 3;
break;
case (byte)ProfileShape.Circle:
sides = GetLevelOfDetail (lod);
break;
case (byte)ProfileShape.HalfCircle:
sides = GetLevelOfDetail (lod);
profileBegin = (0.5f * profileBegin) + 0.5f;
profileEnd = (0.5f * profileEnd) + 0.5f;
break;
}
int hollowSides = sides;
switch (primShape.HollowShape) {
case HollowShape.Circle:
hollowSides = GetLevelOfDetail (lod);
break;
case HollowShape.Square:
hollowSides = 4;
break;
case HollowShape.Triangle:
hollowSides = 3;
break;
}
primMesh = new PrimMesh (sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (!string.IsNullOrEmpty (primMesh.errorMessage))
MainConsole.Instance.Error ("[Prim mesh]: Error - " + primMesh.errorMessage);
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte)Extrusion.Straight || primShape.PathCurve == (byte)Extrusion.Flexible) {
primMesh.twistBegin = (primShape.PathTwistBegin * 18) / 10;
primMesh.twistEnd = (primShape.PathTwist * 18) / 10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try {
primMesh.Extrude (primShape.PathCurve == (byte)Extrusion.Straight
? PathType.Linear
: PathType.Flexible);
} catch (Exception ex) {
ReportPrimError ("Extrusion failure: exception: " + ex, primName, primMesh);
return null;
}
} else {
primMesh.holeSizeX = (200 - primShape.PathScaleX) * 0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY) * 0.01f;
primMesh.radius = 0.01f * primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + (primShape.PathRevolutions * 0.015f);
primMesh.skew = 0.01f * primShape.PathSkew;
primMesh.twistBegin = (primShape.PathTwistBegin * 36) / 10;
primMesh.twistEnd = (primShape.PathTwist * 36) / 10;
primMesh.taperX = primShape.PathTaperX * 0.01f;
primMesh.taperY = primShape.PathTaperY * 0.01f;
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try {
primMesh.Extrude (PathType.Circular);
} catch (Exception ex) {
ReportPrimError ("Extrusion failure: exception: " + ex, primName, primMesh);
return null;
}
}
#if SPAM
debugprimMesh.DumpRaw(baseDir, primName, "primMesh");
#endif
primMesh.Scale (size.X, size.Y, size.Z);
var coords = primMesh.coords;
var faces = primMesh.faces;
Mesh mesh = new Mesh (key);
mesh.Set (coords, faces);
coords.Clear ();
faces.Clear ();
// debug info only
//Console.Write ("P");
return mesh;
}
private Mesh CreateMeshFromPrimMesher(string primName, PrimitiveBaseShape primShape, Vector3 size, float lod)
{
PrimMesh primMesh;
PrimMesher.SculptMesh sculptMesh;
List <Coord> coords;
List <Face> faces;
Image idata = null;
string decodedSculptFileName = "";
if (primShape.SculptEntry)
{
if (cacheSculptMaps && primShape.SculptTexture != UUID.Zero)
{
decodedSculptFileName = System.IO.Path.Combine(decodedScultMapPath, "smap_" + primShape.SculptTexture.ToString());
try
{
if (File.Exists(decodedSculptFileName))
{
idata = Image.FromFile(decodedSculptFileName);
}
}
catch (Exception e)
{
m_log.Error("[SCULPT]: unable to load cached sculpt map " + decodedSculptFileName + " " + e.Message);
}
//if (idata != null)
// m_log.Debug("[SCULPT]: loaded cached map asset for map ID: " + primShape.SculptTexture.ToString());
}
if (idata == null)
{
if (primShape.SculptData == null || primShape.SculptData.Length == 0)
{
return(null);
}
try
{
OpenMetaverse.Imaging.ManagedImage unusedData;
OpenMetaverse.Imaging.OpenJPEG.DecodeToImage(primShape.SculptData, out unusedData, out idata);
unusedData = null;
//idata = CSJ2K.J2kImage.FromBytes(primShape.SculptData);
if (cacheSculptMaps && idata != null)
{
try { idata.Save(decodedSculptFileName, ImageFormat.MemoryBmp); }
catch (Exception e) { m_log.Error("[SCULPT]: unable to cache sculpt map " + decodedSculptFileName + " " + e.Message); }
}
}
catch (DllNotFoundException)
{
m_log.Error("[PHYSICS]: OpenJpeg is not installed correctly on this system. Physics Proxy generation failed. Often times this is because of an old version of GLIBC. You must have version 2.4 or above!");
return(null);
}
catch (IndexOutOfRangeException)
{
m_log.Error("[PHYSICS]: OpenJpeg was unable to decode this. Physics Proxy generation failed");
return(null);
}
catch (Exception ex)
{
m_log.Error("[PHYSICS]: Unable to generate a Sculpty physics proxy. Sculpty texture decode failed: " + ex.Message);
return(null);
}
}
PrimMesher.SculptMesh.SculptType sculptType;
switch ((OpenMetaverse.SculptType)primShape.SculptType)
{
case OpenMetaverse.SculptType.Cylinder:
sculptType = PrimMesher.SculptMesh.SculptType.cylinder;
break;
case OpenMetaverse.SculptType.Plane:
sculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
case OpenMetaverse.SculptType.Torus:
sculptType = PrimMesher.SculptMesh.SculptType.torus;
break;
case OpenMetaverse.SculptType.Sphere:
sculptType = PrimMesher.SculptMesh.SculptType.sphere;
break;
default:
sculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
}
bool mirror = ((primShape.SculptType & 128) != 0);
bool invert = ((primShape.SculptType & 64) != 0);
sculptMesh = new PrimMesher.SculptMesh((Bitmap)idata, sculptType, (int)lod, false, mirror, invert);
idata.Dispose();
sculptMesh.DumpRaw(baseDir, primName, "primMesh");
sculptMesh.Scale(size.X, size.Y, size.Z);
coords = sculptMesh.coords;
faces = sculptMesh.faces;
}
else
{
float pathShearX = primShape.PathShearX < 128 ? (float)primShape.PathShearX * 0.01f : (float)(primShape.PathShearX - 256) * 0.01f;
float pathShearY = primShape.PathShearY < 128 ? (float)primShape.PathShearY * 0.01f : (float)(primShape.PathShearY - 256) * 0.01f;
float pathBegin = (float)primShape.PathBegin * 2.0e-5f;
float pathEnd = 1.0f - (float)primShape.PathEnd * 2.0e-5f;
float pathScaleX = (float)(primShape.PathScaleX - 100) * 0.01f;
float pathScaleY = (float)(primShape.PathScaleY - 100) * 0.01f;
float profileBegin = (float)primShape.ProfileBegin * 2.0e-5f;
float profileEnd = 1.0f - (float)primShape.ProfileEnd * 2.0e-5f;
float profileHollow = (float)primShape.ProfileHollow * 2.0e-5f;
if (profileHollow > 0.95f)
{
profileHollow = 0.95f;
}
int sides = 4;
if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.EquilateralTriangle)
{
sides = 3;
}
else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.Circle)
{
sides = 24;
}
else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.HalfCircle)
{ // half circle, prim is a sphere
sides = 24;
profileBegin = 0.5f * profileBegin + 0.5f;
profileEnd = 0.5f * profileEnd + 0.5f;
}
int hollowSides = sides;
if (primShape.HollowShape == HollowShape.Circle)
{
hollowSides = 24;
}
else if (primShape.HollowShape == HollowShape.Square)
{
hollowSides = 4;
}
else if (primShape.HollowShape == HollowShape.Triangle)
{
hollowSides = 3;
}
primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (primMesh.errorMessage != null)
{
if (primMesh.errorMessage.Length > 0)
{
m_log.Error("[ERROR] " + primMesh.errorMessage);
}
}
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte)Extrusion.Straight || primShape.PathCurve == (byte)Extrusion.Flexible)
{
primMesh.twistBegin = primShape.PathTwistBegin * 18 / 10;
primMesh.twistEnd = primShape.PathTwist * 18 / 10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
{
profileBegin = 0.0f;
}
if (profileEnd > 1.0f)
{
profileEnd = 1.0f;
}
}
#if SPAM
m_log.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.ExtrudeLinear();
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex.ToString(), primName, primMesh);
return(null);
}
}
else
{
primMesh.holeSizeX = (200 - primShape.PathScaleX) * 0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY) * 0.01f;
primMesh.radius = 0.01f * primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + 0.015f * primShape.PathRevolutions;
primMesh.skew = 0.01f * primShape.PathSkew;
primMesh.twistBegin = primShape.PathTwistBegin * 36 / 10;
primMesh.twistEnd = primShape.PathTwist * 36 / 10;
primMesh.taperX = primShape.PathTaperX * 0.01f;
primMesh.taperY = primShape.PathTaperY * 0.01f;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
{
profileBegin = 0.0f;
}
if (profileEnd > 1.0f)
{
profileEnd = 1.0f;
}
}
#if SPAM
m_log.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.ExtrudeCircular();
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex.ToString(), primName, primMesh);
return(null);
}
}
primMesh.DumpRaw(baseDir, primName, "primMesh");
primMesh.Scale(size.X, size.Y, size.Z);
coords = primMesh.coords;
faces = primMesh.faces;
}
// Remove the reference to any JPEG2000 sculpt data so it can be GCed
primShape.SculptData = Utils.EmptyBytes;
int numCoords = coords.Count;
int numFaces = faces.Count;
// Create the list of vertices
List <Vertex> vertices = new List <Vertex>();
for (int i = 0; i < numCoords; i++)
{
Coord c = coords[i];
vertices.Add(new Vertex(c.X, c.Y, c.Z));
}
Mesh mesh = new Mesh();
// Add the corresponding triangles to the mesh
for (int i = 0; i < numFaces; i++)
{
Face f = faces[i];
mesh.Add(new Triangle(vertices[f.v1], vertices[f.v2], vertices[f.v3]));
}
return(mesh);
}
private void ReportPrimError(string message, string primName, PrimMesh primMesh)
{
m_log.Error(message);
m_log.Error("\nPrim Name: " + primName);
m_log.Error("****** PrimMesh Parameters ******\n" + primMesh.ParamsToDisplayString());
}
private Mesh CreateMeshFromPrimMesher(string primName, PrimitiveBaseShape primShape, Vector3 size, float lod, ulong key)
{
PrimMesh primMesh;
PrimMesher.SculptMesh sculptMesh;
List <Coord> coords = new List <Coord>();
List <Face> faces = new List <Face>();
Image idata = null;
string decodedSculptFileName = "";
if (primShape.SculptEntry)
{
if (((OpenMetaverse.SculptType)primShape.SculptType) == SculptType.Mesh)
{
if (!useMeshiesPhysicsMesh)
{
return(null);
}
m_log.Debug("[MESH]: experimental mesh proxy generation");
OSD meshOsd = null;
if (primShape.SculptData.Length <= 0)
{
m_log.Error("[MESH]: asset data is zero length");
return(null);
}
long start = 0;
using (MemoryStream data = new MemoryStream(primShape.SculptData))
{
try
{
meshOsd = (OSDMap)OSDParser.DeserializeLLSDBinary(data);
}
catch (Exception e)
{
m_log.Error("[MESH]: Exception deserializing mesh asset header:" + e.ToString());
}
start = data.Position;
}
if (meshOsd is OSDMap)
{
OSDMap map = (OSDMap)meshOsd;
OSDMap physicsParms = (OSDMap)map["physics_shape"];
int physOffset = physicsParms["offset"].AsInteger() + (int)start;
int physSize = physicsParms["size"].AsInteger();
if (physOffset < 0 || physSize == 0)
{
return(null); // no mesh data in asset
}
OSD decodedMeshOsd = new OSD();
byte[] meshBytes = new byte[physSize];
System.Buffer.BlockCopy(primShape.SculptData, physOffset, meshBytes, 0, physSize);
try
{
using (MemoryStream inMs = new MemoryStream(meshBytes))
{
using (MemoryStream outMs = new MemoryStream())
{
using (ZOutputStream zOut = new ZOutputStream(outMs))
{
byte[] readBuffer = new byte[2048];
int readLen = 0;
while ((readLen = inMs.Read(readBuffer, 0, readBuffer.Length)) > 0)
{
zOut.Write(readBuffer, 0, readLen);
}
zOut.Flush();
outMs.Seek(0, SeekOrigin.Begin);
byte[] decompressedBuf = outMs.GetBuffer();
decodedMeshOsd = OSDParser.DeserializeLLSDBinary(decompressedBuf);
}
}
}
}
catch (Exception e)
{
m_log.Error("[MESH]: exception decoding physical mesh: " + e.ToString());
return(null);
}
OSDArray decodedMeshOsdArray = null;
// physics_shape is an array of OSDMaps, one for each submesh
if (decodedMeshOsd is OSDArray)
{
decodedMeshOsdArray = (OSDArray)decodedMeshOsd;
foreach (OSD subMeshOsd in decodedMeshOsdArray)
{
if (subMeshOsd is OSDMap)
{
OSDMap subMeshMap = (OSDMap)subMeshOsd;
OpenMetaverse.Vector3 posMax = ((OSDMap)subMeshMap["PositionDomain"])["Max"].AsVector3();
OpenMetaverse.Vector3 posMin = ((OSDMap)subMeshMap["PositionDomain"])["Min"].AsVector3();
ushort faceIndexOffset = (ushort)coords.Count;
byte[] posBytes = subMeshMap["Position"].AsBinary();
for (int i = 0; i < posBytes.Length; i += 6)
{
ushort uX = Utils.BytesToUInt16(posBytes, i);
ushort uY = Utils.BytesToUInt16(posBytes, i + 2);
ushort uZ = Utils.BytesToUInt16(posBytes, i + 4);
Coord c = new Coord(
Utils.UInt16ToFloat(uX, posMin.X, posMax.X) * size.X,
Utils.UInt16ToFloat(uY, posMin.Y, posMax.Y) * size.Y,
Utils.UInt16ToFloat(uZ, posMin.Z, posMax.Z) * size.Z);
coords.Add(c);
}
byte[] triangleBytes = subMeshMap["TriangleList"].AsBinary();
for (int i = 0; i < triangleBytes.Length; i += 6)
{
ushort v1 = (ushort)(Utils.BytesToUInt16(triangleBytes, i) + faceIndexOffset);
ushort v2 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 2) + faceIndexOffset);
ushort v3 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 4) + faceIndexOffset);
Face f = new Face(v1, v2, v3);
faces.Add(f);
}
}
}
}
}
}
else
{
if (cacheSculptMaps && primShape.SculptTexture != UUID.Zero)
{
decodedSculptFileName = System.IO.Path.Combine(decodedSculptMapPath, "smap_" + primShape.SculptTexture.ToString());
try
{
if (File.Exists(decodedSculptFileName))
{
idata = Image.FromFile(decodedSculptFileName);
}
}
catch (Exception e)
{
m_log.Error("[SCULPT]: unable to load cached sculpt map " + decodedSculptFileName + " " + e.ToString());
}
//if (idata != null)
// m_log.Debug("[SCULPT]: loaded cached map asset for map ID: " + primShape.SculptTexture.ToString());
}
if (idata == null)
{
if (primShape.SculptData == null || primShape.SculptData.Length == 0)
{
return(null);
}
try
{
OpenMetaverse.Imaging.ManagedImage unusedData;
OpenMetaverse.Imaging.OpenJPEG.DecodeToImage(primShape.SculptData, out unusedData, out idata);
unusedData = null;
//idata = CSJ2K.J2kImage.FromBytes(primShape.SculptData);
if (cacheSculptMaps && idata != null)
{
try { idata.Save(decodedSculptFileName, ImageFormat.MemoryBmp); }
catch (Exception e) { m_log.Error("[SCULPT]: unable to cache sculpt map " + decodedSculptFileName + " " + e.ToString()); }
}
}
catch (DllNotFoundException)
{
m_log.Error("[PHYSICS]: OpenJpeg is not installed correctly on this system. Physics Proxy generation failed. Often times this is because of an old version of GLIBC. You must have version 2.4 or above!");
return(null);
}
catch (IndexOutOfRangeException)
{
m_log.Error("[PHYSICS]: OpenJpeg was unable to decode this. Physics Proxy generation failed");
return(null);
}
catch (Exception ex)
{
m_log.Error("[PHYSICS]: Unable to generate a Sculpty physics proxy. Sculpty texture decode failed: " + ex.ToString());
return(null);
}
}
PrimMesher.SculptMesh.SculptType sculptType;
switch ((OpenMetaverse.SculptType)primShape.SculptType)
{
case OpenMetaverse.SculptType.Cylinder:
sculptType = PrimMesher.SculptMesh.SculptType.cylinder;
break;
case OpenMetaverse.SculptType.Plane:
sculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
case OpenMetaverse.SculptType.Torus:
sculptType = PrimMesher.SculptMesh.SculptType.torus;
break;
case OpenMetaverse.SculptType.Sphere:
sculptType = PrimMesher.SculptMesh.SculptType.sphere;
break;
default:
sculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
}
bool mirror = ((primShape.SculptType & 128) != 0);
bool invert = ((primShape.SculptType & 64) != 0);
if (idata == null)
{
return(null);
}
sculptMesh = new PrimMesher.SculptMesh((Bitmap)idata, sculptType, (int)lod, false, mirror, invert);
idata.Dispose();
sculptMesh.DumpRaw(baseDir, primName, "primMesh");
sculptMesh.Scale(size.X, size.Y, size.Z);
coords = sculptMesh.coords;
faces = sculptMesh.faces;
}
}
else
{
float pathShearX = primShape.PathShearX < 128 ? (float)primShape.PathShearX * 0.01f : (float)(primShape.PathShearX - 256) * 0.01f;
float pathShearY = primShape.PathShearY < 128 ? (float)primShape.PathShearY * 0.01f : (float)(primShape.PathShearY - 256) * 0.01f;
float pathBegin = (float)primShape.PathBegin * 2.0e-5f;
float pathEnd = 1.0f - (float)primShape.PathEnd * 2.0e-5f;
float pathScaleX = (float)(primShape.PathScaleX - 100) * 0.01f;
float pathScaleY = (float)(primShape.PathScaleY - 100) * 0.01f;
float profileBegin = (float)primShape.ProfileBegin * 2.0e-5f;
float profileEnd = 1.0f - (float)primShape.ProfileEnd * 2.0e-5f;
float profileHollow = (float)primShape.ProfileHollow * 2.0e-5f;
if (profileHollow > 0.95f)
{
profileHollow = 0.95f;
}
int sides = 4;
if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.EquilateralTriangle)
{
sides = 3;
}
else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.Circle)
{
sides = 24;
}
else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.HalfCircle)
{ // half circle, prim is a sphere
sides = 24;
profileBegin = 0.5f * profileBegin + 0.5f;
profileEnd = 0.5f * profileEnd + 0.5f;
}
int hollowSides = sides;
if (primShape.HollowShape == HollowShape.Circle)
{
hollowSides = 24;
}
else if (primShape.HollowShape == HollowShape.Square)
{
hollowSides = 4;
}
else if (primShape.HollowShape == HollowShape.Triangle)
{
hollowSides = 3;
}
primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (primMesh.errorMessage != null)
{
if (primMesh.errorMessage.Length > 0)
{
m_log.Error("[ERROR] " + primMesh.errorMessage);
}
}
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte)Extrusion.Straight || primShape.PathCurve == (byte)Extrusion.Flexible)
{
primMesh.twistBegin = primShape.PathTwistBegin * 18 / 10;
primMesh.twistEnd = primShape.PathTwist * 18 / 10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
{
profileBegin = 0.0f;
}
if (profileEnd > 1.0f)
{
profileEnd = 1.0f;
}
}
#if SPAM
m_log.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.ExtrudeLinear();
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex.ToString(), primName, primMesh);
return(null);
}
}
else
{
primMesh.holeSizeX = (200 - primShape.PathScaleX) * 0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY) * 0.01f;
primMesh.radius = 0.01f * primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + 0.015f * primShape.PathRevolutions;
primMesh.skew = 0.01f * primShape.PathSkew;
primMesh.twistBegin = primShape.PathTwistBegin * 36 / 10;
primMesh.twistEnd = primShape.PathTwist * 36 / 10;
primMesh.taperX = primShape.PathTaperX * 0.01f;
primMesh.taperY = primShape.PathTaperY * 0.01f;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
{
profileBegin = 0.0f;
}
if (profileEnd > 1.0f)
{
profileEnd = 1.0f;
}
}
#if SPAM
m_log.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.ExtrudeCircular();
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex.ToString(), primName, primMesh);
return(null);
}
}
primMesh.DumpRaw(baseDir, primName, "primMesh");
primMesh.Scale(size.X, size.Y, size.Z);
coords = primMesh.coords;
faces = primMesh.faces;
}
// Remove the reference to any JPEG2000 sculpt data so it can be GCed
primShape.SculptData = Utils.EmptyBytes;
int numCoords = coords.Count;
int numFaces = faces.Count;
// Create the list of vertices
List <Vertex> vertices = new List <Vertex>();
for (int i = 0; i < numCoords; i++)
{
Coord c = coords[i];
vertices.Add(new Vertex(c.X, c.Y, c.Z));
}
Mesh mesh = new Mesh(key);
// Add the corresponding triangles to the mesh
for (int i = 0; i < numFaces; i++)
{
Face f = faces[i];
mesh.Add(new Triangle(vertices[f.v1], vertices[f.v2], vertices[f.v3]));
}
return(mesh);
}
/// <summary>
/// Generate the co-ords and faces necessary to construct a mesh from the shape data the accompanies a prim.
/// </summary>
/// <param name="primName"></param>
/// <param name="primShape"></param>
/// <param name="size"></param>
/// <param name="coords">Coords are added to this list by the method.</param>
/// <param name="faces">Faces are added to this list by the method.</param>
/// <returns>true if coords and faces were successfully generated, false if not</returns>
private bool GenerateCoordsAndFacesFromPrimShapeData(
string primName, PrimitiveBaseShape primShape, Vector3 size, float lod, out List <Coord> coords, out List <Face> faces)
{
PrimMesh primMesh;
coords = new List <Coord>();
faces = new List <Face>();
float pathShearX = primShape.PathShearX < 128 ? (float)primShape.PathShearX * 0.01f : (float)(primShape.PathShearX - 256) * 0.01f;
float pathShearY = primShape.PathShearY < 128 ? (float)primShape.PathShearY * 0.01f : (float)(primShape.PathShearY - 256) * 0.01f;
float pathBegin = (float)primShape.PathBegin * 2.0e-5f;
float pathEnd = 1.0f - (float)primShape.PathEnd * 2.0e-5f;
float pathScaleX = (float)(primShape.PathScaleX - 100) * 0.01f;
float pathScaleY = (float)(primShape.PathScaleY - 100) * 0.01f;
float profileBegin = (float)primShape.ProfileBegin * 2.0e-5f;
float profileEnd = 1.0f - (float)primShape.ProfileEnd * 2.0e-5f;
float profileHollow = (float)primShape.ProfileHollow * 2.0e-5f;
if (profileHollow > 0.95f)
{
profileHollow = 0.95f;
}
int sides = 4;
LevelOfDetail iLOD = (LevelOfDetail)lod;
if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.EquilateralTriangle)
{
sides = 3;
}
else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.Circle)
{
switch (iLOD)
{
case LevelOfDetail.High: sides = 24; break;
case LevelOfDetail.Medium: sides = 12; break;
case LevelOfDetail.Low: sides = 6; break;
case LevelOfDetail.VeryLow: sides = 3; break;
default: sides = 24; break;
}
}
else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.HalfCircle)
{ // half circle, prim is a sphere
switch (iLOD)
{
case LevelOfDetail.High: sides = 24; break;
case LevelOfDetail.Medium: sides = 12; break;
case LevelOfDetail.Low: sides = 6; break;
case LevelOfDetail.VeryLow: sides = 3; break;
default: sides = 24; break;
}
profileBegin = 0.5f * profileBegin + 0.5f;
profileEnd = 0.5f * profileEnd + 0.5f;
}
int hollowSides = sides;
if (primShape.HollowShape == HollowShape.Circle)
{
switch (iLOD)
{
case LevelOfDetail.High: hollowSides = 24; break;
case LevelOfDetail.Medium: hollowSides = 12; break;
case LevelOfDetail.Low: hollowSides = 6; break;
case LevelOfDetail.VeryLow: hollowSides = 3; break;
default: hollowSides = 24; break;
}
}
else if (primShape.HollowShape == HollowShape.Square)
{
hollowSides = 4;
}
else if (primShape.HollowShape == HollowShape.Triangle)
{
hollowSides = 3;
}
primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (primMesh.errorMessage != null)
{
if (primMesh.errorMessage.Length > 0)
{
m_log.Error("[ERROR] " + primMesh.errorMessage);
}
}
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte)Extrusion.Straight || primShape.PathCurve == (byte)Extrusion.Flexible)
{
primMesh.twistBegin = primShape.PathTwistBegin * 18 / 10;
primMesh.twistEnd = primShape.PathTwist * 18 / 10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
{
profileBegin = 0.0f;
}
if (profileEnd > 1.0f)
{
profileEnd = 1.0f;
}
}
#if SPAM
m_log.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.ExtrudeLinear();
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex.ToString(), primName, primMesh);
return(false);
}
}
else
{
primMesh.holeSizeX = (200 - primShape.PathScaleX) * 0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY) * 0.01f;
primMesh.radius = 0.01f * primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + 0.015f * primShape.PathRevolutions;
primMesh.skew = 0.01f * primShape.PathSkew;
primMesh.twistBegin = primShape.PathTwistBegin * 36 / 10;
primMesh.twistEnd = primShape.PathTwist * 36 / 10;
primMesh.taperX = primShape.PathTaperX * 0.01f;
primMesh.taperY = primShape.PathTaperY * 0.01f;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
{
profileBegin = 0.0f;
}
if (profileEnd > 1.0f)
{
profileEnd = 1.0f;
}
}
#if SPAM
m_log.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.ExtrudeCircular();
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex.ToString(), primName, primMesh);
return(false);
}
}
primMesh.DumpRaw(baseDir, primName, "primMesh");
primMesh.Scale(size.X, size.Y, size.Z);
coords = primMesh.coords;
faces = primMesh.faces;
return(true);
}
private Mesh CreateMeshFromPrimMesher(string primName, PrimitiveBaseShape primShape, Vector3 size, float lod,
ulong key)
{
PrimMesh primMesh;
SculptMesh sculptMesh;
List <Coord> coords = new List <Coord>();
List <Face> faces = new List <Face>();
Image idata = null;
string decodedSculptFileName = "";
if (primShape.SculptEntry)
{
if (((SculptType)primShape.SculptType) == SculptType.Mesh)
{
if (!useMeshiesPhysicsMesh)
{
return(null);
}
MainConsole.Instance.Debug("[MESH]: experimental mesh proxy generation");
OSD meshOsd = null;
if (primShape.SculptData == null || primShape.SculptData.Length <= 0)
{
MainConsole.Instance.Error("[MESH]: asset data is zero length");
return(null);
}
long start = 0;
using (MemoryStream data = new MemoryStream(primShape.SculptData))
{
try
{
meshOsd = OSDParser.DeserializeLLSDBinary(data);
}
catch (Exception e)
{
MainConsole.Instance.Error("[MESH]: Exception deserializing mesh asset header:" + e);
}
start = data.Position;
}
if (meshOsd is OSDMap)
{
OSDMap map = (OSDMap)meshOsd;
OSDMap physicsParms = new OSDMap();
if (map.ContainsKey("physics_cached"))
{
OSD cachedMeshMap = map["physics_cached"]; // cached data from Aurora
Mesh cachedMesh = new Mesh(key);
cachedMesh.Deserialize(cachedMeshMap);
cachedMesh.WasCached = true;
return(cachedMesh);//Return here, we found all of the info right here
}
if (map.ContainsKey("physics_shape"))
{
physicsParms = (OSDMap)map["physics_shape"]; // old asset format
}
if (physicsParms.Count == 0 && map.ContainsKey("physics_mesh"))
{
physicsParms = (OSDMap)map["physics_mesh"]; // new asset format
}
if (physicsParms.Count == 0 && map.ContainsKey("physics_convex"))
{
// convex hull format, which we can't read, so instead
// read the highest lod that exists, and use it instead
physicsParms = (OSDMap)map["high_lod"];
}
int physOffset = physicsParms["offset"].AsInteger() + (int)start;
int physSize = physicsParms["size"].AsInteger();
if (physOffset < 0 || physSize == 0)
{
return(null); // no mesh data in asset
}
OSD decodedMeshOsd = new OSD();
byte[] meshBytes = new byte[physSize];
Buffer.BlockCopy(primShape.SculptData, physOffset, meshBytes, 0, physSize);
try
{
using (MemoryStream inMs = new MemoryStream(meshBytes))
{
using (MemoryStream outMs = new MemoryStream())
{
using (ZOutputStream zOut = new ZOutputStream(outMs))
{
byte[] readBuffer = new byte[2048];
int readLen = 0;
while ((readLen = inMs.Read(readBuffer, 0, readBuffer.Length)) > 0)
{
zOut.Write(readBuffer, 0, readLen);
}
zOut.Flush();
outMs.Seek(0, SeekOrigin.Begin);
byte[] decompressedBuf = outMs.GetBuffer();
decodedMeshOsd = OSDParser.DeserializeLLSDBinary(decompressedBuf);
}
}
}
}
catch (Exception e)
{
MainConsole.Instance.Error("[MESH]: exception decoding physical mesh: " + e);
return(null);
}
OSDArray decodedMeshOsdArray = null;
// physics_shape is an array of OSDMaps, one for each submesh
if (decodedMeshOsd is OSDArray)
{
decodedMeshOsdArray = (OSDArray)decodedMeshOsd;
foreach (OSD subMeshOsd in decodedMeshOsdArray)
{
if (subMeshOsd is OSDMap)
{
OSDMap subMeshMap = (OSDMap)subMeshOsd;
// As per http://wiki.secondlife.com/wiki/Mesh/Mesh_Asset_Format, some Mesh Level
// of Detail Blocks (maps) contain just a NoGeometry key to signal there is no
// geometry for this submesh.
if (subMeshMap.ContainsKey("NoGeometry") && (subMeshMap["NoGeometry"]))
{
continue;
}
Vector3 posMax = new Vector3(0.5f, 0.5f, 0.5f);
Vector3 posMin = new Vector3(-0.5f, -0.5f, -0.5f);
if (subMeshMap.ContainsKey("PositionDomain"))//Optional, so leave the max and min values otherwise
{
posMax = ((OSDMap)subMeshMap["PositionDomain"])["Max"].AsVector3();
posMin = ((OSDMap)subMeshMap["PositionDomain"])["Min"].AsVector3();
}
ushort faceIndexOffset = (ushort)coords.Count;
byte[] posBytes = subMeshMap["Position"].AsBinary();
for (int i = 0; i < posBytes.Length; i += 6)
{
ushort uX = Utils.BytesToUInt16(posBytes, i);
ushort uY = Utils.BytesToUInt16(posBytes, i + 2);
ushort uZ = Utils.BytesToUInt16(posBytes, i + 4);
Coord c = new Coord(
Utils.UInt16ToFloat(uX, posMin.X, posMax.X) * size.X,
Utils.UInt16ToFloat(uY, posMin.Y, posMax.Y) * size.Y,
Utils.UInt16ToFloat(uZ, posMin.Z, posMax.Z) * size.Z);
coords.Add(c);
}
byte[] triangleBytes = subMeshMap["TriangleList"].AsBinary();
for (int i = 0; i < triangleBytes.Length; i += 6)
{
ushort v1 = (ushort)(Utils.BytesToUInt16(triangleBytes, i) + faceIndexOffset);
ushort v2 =
(ushort)(Utils.BytesToUInt16(triangleBytes, i + 2) + faceIndexOffset);
ushort v3 =
(ushort)(Utils.BytesToUInt16(triangleBytes, i + 4) + faceIndexOffset);
Face f = new Face(v1, v2, v3);
faces.Add(f);
}
}
}
}
}
}
else
{
if (cacheSculptMaps && primShape.SculptTexture != UUID.Zero)
{
decodedSculptFileName = Path.Combine(decodedSculptMapPath,
"smap_" + primShape.SculptTexture.ToString());
try
{
if (File.Exists(decodedSculptFileName))
{
idata = Image.FromFile(decodedSculptFileName);
}
}
catch (Exception e)
{
MainConsole.Instance.Error("[SCULPT]: unable to load cached sculpt map " + decodedSculptFileName + " " + e);
}
//if (idata != null)
// MainConsole.Instance.Debug("[SCULPT]: loaded cached map asset for map ID: " + primShape.SculptTexture.ToString());
}
if (idata == null)
{
if (primShape.SculptData == null || primShape.SculptData.Length == 0)
{
return(null);
}
try
{
ManagedImage unusedData;
OpenJPEG.DecodeToImage(primShape.SculptData, out unusedData, out idata);
unusedData = null;
if (cacheSculptMaps && (cacheSculptAlphaMaps || (((ImageFlags)(idata.Flags) & ImageFlags.HasAlpha) == 0)))
{
try
{
idata.Save(decodedSculptFileName, ImageFormat.MemoryBmp);
}
catch (Exception e)
{
MainConsole.Instance.Error("[SCULPT]: unable to cache sculpt map " + decodedSculptFileName + " " +
e);
}
}
}
catch (DllNotFoundException)
{
MainConsole.Instance.Error(
"[PHYSICS]: OpenJpeg is not installed correctly on this system. Physics Proxy generation failed. Often times this is because of an old version of GLIBC. You must have version 2.4 or above!");
return(null);
}
catch (IndexOutOfRangeException)
{
MainConsole.Instance.Error("[PHYSICS]: OpenJpeg was unable to decode this. Physics Proxy generation failed");
return(null);
}
catch (Exception ex)
{
MainConsole.Instance.Error(
"[PHYSICS]: Unable to generate a Sculpty physics proxy. Sculpty texture decode failed: " +
ex);
return(null);
}
}
SculptMesh.SculptType sculptType;
switch ((SculptType)primShape.SculptType)
{
case SculptType.Cylinder:
sculptType = SculptMesh.SculptType.cylinder;
break;
case SculptType.Plane:
sculptType = SculptMesh.SculptType.plane;
break;
case SculptType.Torus:
sculptType = SculptMesh.SculptType.torus;
break;
case SculptType.Sphere:
sculptType = SculptMesh.SculptType.sphere;
break;
default:
sculptType = SculptMesh.SculptType.plane;
break;
}
bool mirror = ((primShape.SculptType & 128) != 0);
bool invert = ((primShape.SculptType & 64) != 0);
if (idata == null)
{
return(null);
}
sculptMesh = new SculptMesh((Bitmap)idata, sculptType, (int)lod, false, mirror, invert);
idata.Dispose();
idata = null;
sculptMesh.DumpRaw(baseDir, primName, "primMesh");
sculptMesh.Scale(size.X, size.Y, size.Z);
coords = sculptMesh.coords;
faces = sculptMesh.faces;
}
}
else
{
float pathShearX = primShape.PathShearX < 128
? primShape.PathShearX * 0.01f
: (primShape.PathShearX - 256) * 0.01f;
float pathShearY = primShape.PathShearY < 128
? primShape.PathShearY * 0.01f
: (primShape.PathShearY - 256) * 0.01f;
float pathBegin = primShape.PathBegin * 2.0e-5f;
float pathEnd = 1.0f - primShape.PathEnd * 2.0e-5f;
float pathScaleX = (primShape.PathScaleX - 100) * 0.01f;
float pathScaleY = (primShape.PathScaleY - 100) * 0.01f;
float profileBegin = primShape.ProfileBegin * 2.0e-5f;
float profileEnd = 1.0f - primShape.ProfileEnd * 2.0e-5f;
float profileHollow = primShape.ProfileHollow * 2.0e-5f;
if (profileHollow > 0.95f)
{
if (profileHollow > 0.99f)
{
profileHollow = 0.99f;
}
float sizeX = primShape.Scale.X - (primShape.Scale.X * profileHollow);
if (sizeX < 0.1f) //If its > 0.1, its fine to mesh at the small hollow
{
profileHollow = 0.95f + (sizeX / 2); //Scale the rest by how large the size of the prim is
}
}
int sides = 4;
if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.EquilateralTriangle)
{
sides = 3;
}
else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.Circle)
{
sides = 24;
}
else if ((primShape.ProfileCurve & 0x07) == (byte)ProfileShape.HalfCircle)
{
// half circle, prim is a sphere
sides = 24;
profileBegin = 0.5f * profileBegin + 0.5f;
profileEnd = 0.5f * profileEnd + 0.5f;
}
int hollowSides = sides;
if (primShape.HollowShape == HollowShape.Circle)
{
hollowSides = 24;
}
else if (primShape.HollowShape == HollowShape.Square)
{
hollowSides = 4;
}
else if (primShape.HollowShape == HollowShape.Triangle)
{
hollowSides = 3;
}
primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (primMesh.errorMessage != null)
{
if (primMesh.errorMessage.Length > 0)
{
MainConsole.Instance.Error("[ERROR] " + primMesh.errorMessage);
}
}
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte)Extrusion.Straight || primShape.PathCurve == (byte)Extrusion.Flexible)
{
primMesh.twistBegin = primShape.PathTwistBegin * 18 / 10;
primMesh.twistEnd = primShape.PathTwist * 18 / 10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
{
profileBegin = 0.0f;
}
if (profileEnd > 1.0f)
{
profileEnd = 1.0f;
}
}
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.Extrude(primShape.PathCurve == (byte)Extrusion.Straight
? PathType.Linear
: PathType.Flexible);
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex, primName, primMesh);
return(null);
}
}
else
{
primMesh.holeSizeX = (200 - primShape.PathScaleX) * 0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY) * 0.01f;
primMesh.radius = 0.01f * primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + 0.015f * primShape.PathRevolutions;
primMesh.skew = 0.01f * primShape.PathSkew;
primMesh.twistBegin = primShape.PathTwistBegin * 36 / 10;
primMesh.twistEnd = primShape.PathTwist * 36 / 10;
primMesh.taperX = primShape.PathTaperX * 0.01f;
primMesh.taperY = primShape.PathTaperY * 0.01f;
if (profileBegin < 0.0f || profileBegin >= profileEnd || profileEnd > 1.0f)
{
ReportPrimError("*** CORRUPT PRIM!! ***", primName, primMesh);
if (profileBegin < 0.0f)
{
profileBegin = 0.0f;
}
if (profileEnd > 1.0f)
{
profileEnd = 1.0f;
}
}
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try
{
primMesh.Extrude(PathType.Circular);
}
catch (Exception ex)
{
ReportPrimError("Extrusion failure: exception: " + ex, primName, primMesh);
return(null);
}
}
primMesh.DumpRaw(baseDir, primName, "primMesh");
primMesh.Scale(size.X, size.Y, size.Z);
coords = primMesh.coords;
faces = primMesh.faces;
primMesh = null;
}
int numCoords = coords.Count;
int numFaces = faces.Count;
// Create the list of vertices
List <Vertex> vertices = new List <Vertex>();
for (int i = 0; i < numCoords; i++)
{
Coord c = coords[i];
vertices.Add(new Vertex(c.X, c.Y, c.Z));
}
Mesh mesh = new Mesh(key);
// Add the corresponding triangles to the mesh
for (int i = 0; i < numFaces; i++)
{
Face f = faces[i];
mesh.Add(new Triangle(vertices[f.v1], vertices[f.v2], vertices[f.v3]));
}
coords.Clear();
faces.Clear();
coords = null;
faces = null;
return(mesh);
}
private void ReportPrimError(string message, string primName, PrimMesh primMesh)
{
MainConsole.Instance.Error(message);
MainConsole.Instance.Error("\nPrim Name: " + primName);
MainConsole.Instance.Error("****** PrimMesh Parameters ******\n" + primMesh.ParamsToDisplayString());
}
/// <summary>
/// Generate a mesh from the shape data the accompanies a prim.
/// </summary>
/// <param name="primName"></param>
/// <param name="primShape"></param>
/// <param name="size"></param>
/// <param name="key"></param>
/// <returns>created mesh or null if invalid</returns>
Mesh GenerateFromPrimShapeData(string primName, PrimitiveBaseShape primShape, Vector3 size, float lod, ulong key)
{
PrimMesh primMesh;
float pathShearX = primShape.PathShearX < 128
? primShape.PathShearX * 0.01f
: (primShape.PathShearX - 256) * 0.01f;
float pathShearY = primShape.PathShearY < 128
? primShape.PathShearY * 0.01f
: (primShape.PathShearY - 256) * 0.01f;
float pathBegin = primShape.PathBegin * 2.0e-5f;
float pathEnd = 1.0f - (primShape.PathEnd * 2.0e-5f);
float pathScaleX = (primShape.PathScaleX - 100) * 0.01f;
float pathScaleY = (primShape.PathScaleY - 100) * 0.01f;
float profileBegin = primShape.ProfileBegin * 2.0e-5f;
float profileEnd = 1.0f - (primShape.ProfileEnd * 2.0e-5f);
float profileHollow = primShape.ProfileHollow * 2.0e-5f;
if (profileHollow > 0.95f)
{
if (profileHollow > 0.99f)
{
profileHollow = 0.99f;
}
float sizeX = primShape.Scale.X - (primShape.Scale.X * profileHollow);
if (sizeX < 0.1f) // If its > 0.1, its fine to mesh at the small hollow
{
profileHollow = 0.95f + (sizeX / 2); // Scale the rest by how large the size of the prim is
}
}
int sides = 4; // assume the prim is square
switch ((primShape.ProfileCurve & 0x07))
{
case (byte)ProfileShape.EquilateralTriangle:
sides = 3;
break;
case (byte)ProfileShape.Circle:
sides = GetLevelOfDetail(lod);
break;
case (byte)ProfileShape.HalfCircle:
sides = GetLevelOfDetail(lod);
profileBegin = (0.5f * profileBegin) + 0.5f;
profileEnd = (0.5f * profileEnd) + 0.5f;
break;
}
int hollowSides = sides;
switch (primShape.HollowShape)
{
case HollowShape.Circle:
hollowSides = GetLevelOfDetail(lod);
break;
case HollowShape.Square:
hollowSides = 4;
break;
case HollowShape.Triangle:
hollowSides = 3;
break;
}
primMesh = new PrimMesh(sides, profileBegin, profileEnd, profileHollow, hollowSides);
if (!string.IsNullOrEmpty(primMesh.errorMessage))
{
MainConsole.Instance.Error("[Prim mesh]: Error - " + primMesh.errorMessage);
}
primMesh.topShearX = pathShearX;
primMesh.topShearY = pathShearY;
primMesh.pathCutBegin = pathBegin;
primMesh.pathCutEnd = pathEnd;
if (primShape.PathCurve == (byte)Extrusion.Straight || primShape.PathCurve == (byte)Extrusion.Flexible)
{
primMesh.twistBegin = (primShape.PathTwistBegin * 18) / 10;
primMesh.twistEnd = (primShape.PathTwist * 18) / 10;
primMesh.taperX = pathScaleX;
primMesh.taperY = pathScaleY;
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Linear) ******\n" + primMesh.ParamsToDisplayString());
#endif
try {
primMesh.Extrude(primShape.PathCurve == (byte)Extrusion.Straight
? PathType.Linear
: PathType.Flexible);
} catch (Exception ex) {
ReportPrimError("Extrusion failure: exception: " + ex, primName, primMesh);
return(null);
}
}
else
{
primMesh.holeSizeX = (200 - primShape.PathScaleX) * 0.01f;
primMesh.holeSizeY = (200 - primShape.PathScaleY) * 0.01f;
primMesh.radius = 0.01f * primShape.PathRadiusOffset;
primMesh.revolutions = 1.0f + (primShape.PathRevolutions * 0.015f);
primMesh.skew = 0.01f * primShape.PathSkew;
primMesh.twistBegin = (primShape.PathTwistBegin * 36) / 10;
primMesh.twistEnd = (primShape.PathTwist * 36) / 10;
primMesh.taperX = primShape.PathTaperX * 0.01f;
primMesh.taperY = primShape.PathTaperY * 0.01f;
#if SPAM
MainConsole.Instance.Debug("****** PrimMesh Parameters (Circular) ******\n" + primMesh.ParamsToDisplayString());
#endif
try {
primMesh.Extrude(PathType.Circular);
} catch (Exception ex) {
ReportPrimError("Extrusion failure: exception: " + ex, primName, primMesh);
return(null);
}
}
#if SPAM
debugprimMesh.DumpRaw(baseDir, primName, "primMesh");
#endif
primMesh.Scale(size.X, size.Y, size.Z);
var coords = primMesh.coords;
var faces = primMesh.faces;
Mesh mesh = new Mesh(key);
mesh.Set(coords, faces);
coords.Clear();
faces.Clear();
// debug info only
//Console.Write ("P");
return(mesh);
}