public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod, bool isPhysical, bool shouldCache)
{
#if SPAM
m_log.DebugFormat("[MESH]: Creating mesh for {0}", primName);
#endif
Mesh mesh = null;
ulong key = 0;
// If this mesh has been created already, return it instead of creating another copy
// For large regions with 100k+ prims and hundreds of copies of each, this can save a GB or more of memory
if (shouldCache)
{
key = primShape.GetMeshKey(size, lod);
if (m_uniqueMeshes.TryGetValue(key, out mesh))
{
return(mesh);
}
}
if (size.X < 0.01f)
{
size.X = 0.01f;
}
if (size.Y < 0.01f)
{
size.Y = 0.01f;
}
if (size.Z < 0.01f)
{
size.Z = 0.01f;
}
mesh = CreateMeshFromPrimMesher(primName, primShape, size, lod);
if (mesh != null)
{
if ((!isPhysical) && size.X < minSizeForComplexMesh && size.Y < minSizeForComplexMesh && size.Z < minSizeForComplexMesh)
{
#if SPAM
m_log.Debug("Meshmerizer: prim " + primName + " has a size of " + size.ToString() + " which is below threshold of " +
minSizeForComplexMesh.ToString() + " - creating simple bounding box");
#endif
mesh = CreateBoundingBoxMesh(mesh);
mesh.DumpRaw(baseDir, primName, "Z extruded");
}
// trim the vertex and triangle lists to free up memory
mesh.TrimExcess();
if (shouldCache)
{
m_uniqueMeshes.Add(key, mesh);
}
}
return(mesh);
}
public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod, bool isPhysical, bool shouldCache, out List <List <Vector3> > hulls, out List <Vector3> boundingHull)
{
#if SPAM
m_log.DebugFormat("[MESH]: Creating mesh for {0}", primName);
#endif
Mesh mesh = null;
ulong key = 0;
// If this mesh has been created already, return it instead of creating another copy
// For large regions with 100k+ prims and hundreds of copies of each, this can save a GB or more of memory
m_uniqueMeshesRwLock.AcquireReaderLock(-1);
try
{
if (shouldCache)
{
key = primShape.GetMeshKey(size, lod);
if (m_uniqueMeshes.TryGetValue(key, out mesh))
{
m_uniqueMeshesBoundingHulls.TryGetValue(key, out boundingHull);
m_uniqueMeshesHulls.TryGetValue(key, out hulls);
return(mesh);
}
}
LockCookie lc = m_uniqueMeshesRwLock.UpgradeToWriterLock(-1);
try
{
/* recheck since we allow a lot of threading here */
if (shouldCache)
{
if (m_uniqueMeshes.TryGetValue(key, out mesh))
{
m_uniqueMeshesBoundingHulls.TryGetValue(key, out boundingHull);
m_uniqueMeshesHulls.TryGetValue(key, out hulls);
return(mesh);
}
}
if (size.X < 0.01f)
{
size.X = 0.01f;
}
if (size.Y < 0.01f)
{
size.Y = 0.01f;
}
if (size.Z < 0.01f)
{
size.Z = 0.01f;
}
List <List <Vector3> > inhulls;
List <Vector3> inboundingHull;
mesh = CreateMeshFromPrimMesher(primName, primShape, size, lod, out inhulls, out inboundingHull);
if (inhulls != null)
{
hulls = new List <List <Vector3> >();
foreach (var hull in inhulls)
{
List <Vector3> verts = new List <Vector3>();
foreach (var vert in hull)
{
verts.Add(vert * size);
}
hulls.Add(verts);
}
}
else
{
hulls = null;
}
if (inboundingHull != null)
{
boundingHull = new List <Vector3>();
foreach (var vert in inboundingHull)
{
boundingHull.Add(vert * size);
}
}
else
{
boundingHull = null;
}
if (mesh != null)
{
if ((!isPhysical) && size.X < minSizeForComplexMesh && size.Y < minSizeForComplexMesh && size.Z < minSizeForComplexMesh)
{
#if SPAM
m_log.Debug("Meshmerizer: prim " + primName + " has a size of " + size.ToString() + " which is below threshold of " +
minSizeForComplexMesh.ToString() + " - creating simple bounding box");
#endif
mesh = CreateBoundingBoxMesh(mesh);
mesh.DumpRaw(baseDir, primName, "Z extruded");
}
// trim the vertex and triangle lists to free up memory
mesh.TrimExcess();
if (shouldCache)
{
m_uniqueMeshes.Add(key, mesh);
m_uniqueMeshesHulls.Add(key, hulls);
m_uniqueMeshesBoundingHulls.Add(key, boundingHull);
}
}
}
finally
{
m_uniqueMeshesRwLock.DowngradeFromWriterLock(ref lc);
}
}
finally
{
m_uniqueMeshesRwLock.ReleaseReaderLock();
}
return(mesh);
}
