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;
}
/// <summary>
/// creates a simple box mesh of the specified size. This mesh is of very low vertex count and may
/// be useful as a backup proxy when level of detail is not needed or when more complex meshes fail
/// for some reason
/// </summary>
/// <param name="minX"></param>
/// <param name="maxX"></param>
/// <param name="minY"></param>
/// <param name="maxY"></param>
/// <param name="minZ"></param>
/// <param name="maxZ"></param>
/// <param name="key"></param>
/// <returns></returns>
private static Mesh CreateSimpleBoxMesh(float minX, float maxX, float minY, float maxY, float minZ, float maxZ,
ulong key)
{
Mesh box = new Mesh(key);
List<Coord> vertices = new List<Coord>
{
new Coord(minX, maxY, minZ),
new Coord(maxX, maxY, minZ),
new Coord(maxX, minY, minZ),
new Coord(minX, minY, minZ)
};
// bottom
List<Face> faces = new List<Face>();
faces.Add(new Face(0, 1, 2));
faces.Add(new Face(0, 1, 3));
// top
vertices.Add(new Coord(maxX, maxY, maxZ));
vertices.Add(new Coord(minX, maxY, maxZ));
vertices.Add(new Coord(minX, minY, maxZ));
vertices.Add(new Coord(maxX, minY, maxZ));
faces.Add(new Face(4, 5, 6));
faces.Add(new Face(4, 5, 7));
// sides
faces.Add(new Face(5, 0, 3));
faces.Add(new Face(5, 3, 6));
faces.Add(new Face(1, 0, 5));
faces.Add(new Face(1, 5, 4));
faces.Add(new Face(7, 1, 4));
faces.Add(new Face(7, 2, 1));
faces.Add(new Face(3, 2, 7));
faces.Add(new Face(3, 7, 6));
box.Set(vertices, faces);
vertices.Clear();
faces.Clear();
vertices = null;
faces = null;
return box;
}
