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add decoder for bounding convex hull

user_profiles
dahlia 2013-05-23 15:47:47 -07:00
parent 0e002e3693
commit c5549d2730
1 changed files with 53 additions and 4 deletions
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57
OpenSim/Region/Physics/Meshing/Meshmerizer.cs
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@ -83,6 +83,7 @@ namespace OpenSim.Region.Physics.Meshing
private float minSizeForComplexMesh = 0.2f; // prims with all dimensions smaller than this will have a bounding box mesh
private List<List<Vector3>> mConvexHulls = null;
private List<Vector3> mBoundingHull = null;
private Dictionary<ulong, Mesh> m_uniqueMeshes = new Dictionary<ulong, Mesh>();
@ -324,6 +325,9 @@ namespace OpenSim.Region.Physics.Meshing
faces = new List<Face>();
OSD meshOsd = null;
mConvexHulls = null;
mBoundingHull = null;
if (primShape.SculptData.Length <= 0)
{
// XXX: At the moment we can not log here since ODEPrim, for instance, ends up triggering this
@ -385,13 +389,41 @@ namespace OpenSim.Region.Physics.Meshing
try
{
OSDMap convexBlock = (OSDMap)map["physics_convex"];
Vector3 min = new Vector3(-0.5f, -0.5f, -0.5f);
if (convexBlock.ContainsKey("Min")) min = convexBlock["Min"].AsVector3();
Vector3 max = new Vector3(0.5f, 0.5f, 0.5f);
if (convexBlock.ContainsKey("Max")) max = convexBlock["Max"].AsVector3();
List<Vector3> boundingHull = null;
if (convexBlock.ContainsKey("BoundingVerts"))
{
// decompress and decode bounding hull points
byte[] boundingVertsBytes = DecompressOsd(convexBlock["BoundingVerts"].AsBinary()).AsBinary();
boundingHull = new List<Vector3>();
for (int i = 0; i < boundingVertsBytes.Length;)
{
ushort uX = Utils.BytesToUInt16(boundingVertsBytes, i); i += 2;
ushort uY = Utils.BytesToUInt16(boundingVertsBytes, i); i += 2;
ushort uZ = Utils.BytesToUInt16(boundingVertsBytes, i); i += 2;
Vector3 pos = new Vector3(
Utils.UInt16ToFloat(uX, min.X, max.X),
Utils.UInt16ToFloat(uY, min.Y, max.Y),
Utils.UInt16ToFloat(uZ, min.Z, max.Z)
);
boundingHull.Add(pos);
}
mBoundingHull = boundingHull;
if (debugDetail) m_log.DebugFormat("{0} prim='{1}': parsed bounding hull. nHulls={2}", LogHeader, primName, mBoundingHull.Count);
}
if (convexBlock.ContainsKey("HullList"))
{
byte[] hullList = convexBlock["HullList"].AsBinary();
Vector3 min = new Vector3(-0.5f, -0.5f, -0.5f);
if (convexBlock.ContainsKey("Min")) min = convexBlock["Min"].AsVector3();
Vector3 max = new Vector3(0.5f, 0.5f, 0.5f);
if (convexBlock.ContainsKey("Max")) max = convexBlock["Max"].AsVector3();
// decompress and decode hull points
byte[] posBytes = DecompressOsd(convexBlock["Positions"].AsBinary()).AsBinary();
@ -795,6 +827,23 @@ namespace OpenSim.Region.Physics.Meshing
return true;
}
/// <summary>
/// temporary prototype code - please do not use until the interface has been finalized!
/// </summary>
/// <param name="size">value to scale the hull points by</param>
/// <returns>a list of vertices in the bounding hull if it exists and has been successfully decoded, otherwise null</returns>
public List<Vector3> GetBoundingHull(Vector3 size)
{
if (mBoundingHull == null)
return null;
List<Vector3> verts = new List<Vector3>();
foreach (var vert in mBoundingHull)
verts.Add(vert * size);
return verts;
}
/// <summary>
/// temporary prototype code - please do not use until the interface has been finalized!
/// </summary>