684 lines
29 KiB
C#
684 lines
29 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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//#define SPAM
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using System;
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using System.Collections.Generic;
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using OpenSim.Framework;
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using OpenSim.Region.Physics.Manager;
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using OpenMetaverse;
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using OpenMetaverse.StructuredData;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO.Compression;
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using PrimMesher;
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using log4net;
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using Nini.Config;
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using System.Reflection;
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using System.IO;
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using ComponentAce.Compression.Libs.zlib;
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namespace OpenSim.Region.Physics.Meshing
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{
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public class MeshmerizerPlugin : IMeshingPlugin
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{
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public MeshmerizerPlugin()
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{
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}
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public string GetName()
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{
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return "Meshmerizer";
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}
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public IMesher GetMesher(IConfigSource config)
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{
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return new Meshmerizer(config);
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}
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}
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public class Meshmerizer : IMesher
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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// Setting baseDir to a path will enable the dumping of raw files
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// raw files can be imported by blender so a visual inspection of the results can be done
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#if SPAM
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const string baseDir = "rawFiles";
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#else
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private const string baseDir = null; //"rawFiles";
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#endif
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private bool cacheSculptMaps = true;
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private string decodedSculptMapPath = null;
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private bool useMeshiesPhysicsMesh = false;
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private float minSizeForComplexMesh = 0.2f; // prims with all dimensions smaller than this will have a bounding box mesh
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private Dictionary<ulong, Mesh> m_uniqueMeshes = new Dictionary<ulong, Mesh>();
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public Meshmerizer(IConfigSource config)
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{
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IConfig start_config = config.Configs["Startup"];
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IConfig mesh_config = config.Configs["Mesh"];
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decodedSculptMapPath = start_config.GetString("DecodedSculptMapPath","j2kDecodeCache");
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cacheSculptMaps = start_config.GetBoolean("CacheSculptMaps", cacheSculptMaps);
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if(mesh_config != null)
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useMeshiesPhysicsMesh = mesh_config.GetBoolean("UseMeshiesPhysicsMesh", useMeshiesPhysicsMesh);
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try
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{
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if (!Directory.Exists(decodedSculptMapPath))
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Directory.CreateDirectory(decodedSculptMapPath);
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}
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catch (Exception e)
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{
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m_log.WarnFormat("[SCULPT]: Unable to create {0} directory: ", decodedSculptMapPath, e.Message);
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}
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}
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/// <summary>
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/// creates a simple box mesh of the specified size. This mesh is of very low vertex count and may
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/// be useful as a backup proxy when level of detail is not needed or when more complex meshes fail
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/// for some reason
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/// </summary>
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/// <param name="minX"></param>
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/// <param name="maxX"></param>
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/// <param name="minY"></param>
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/// <param name="maxY"></param>
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/// <param name="minZ"></param>
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/// <param name="maxZ"></param>
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/// <returns></returns>
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private static Mesh CreateSimpleBoxMesh(float minX, float maxX, float minY, float maxY, float minZ, float maxZ)
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{
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Mesh box = new Mesh();
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List<Vertex> vertices = new List<Vertex>();
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// bottom
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vertices.Add(new Vertex(minX, maxY, minZ));
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vertices.Add(new Vertex(maxX, maxY, minZ));
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vertices.Add(new Vertex(maxX, minY, minZ));
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vertices.Add(new Vertex(minX, minY, minZ));
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box.Add(new Triangle(vertices[0], vertices[1], vertices[2]));
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box.Add(new Triangle(vertices[0], vertices[2], vertices[3]));
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// top
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vertices.Add(new Vertex(maxX, maxY, maxZ));
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vertices.Add(new Vertex(minX, maxY, maxZ));
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vertices.Add(new Vertex(minX, minY, maxZ));
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vertices.Add(new Vertex(maxX, minY, maxZ));
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box.Add(new Triangle(vertices[4], vertices[5], vertices[6]));
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box.Add(new Triangle(vertices[4], vertices[6], vertices[7]));
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// sides
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box.Add(new Triangle(vertices[5], vertices[0], vertices[3]));
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box.Add(new Triangle(vertices[5], vertices[3], vertices[6]));
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box.Add(new Triangle(vertices[1], vertices[0], vertices[5]));
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box.Add(new Triangle(vertices[1], vertices[5], vertices[4]));
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box.Add(new Triangle(vertices[7], vertices[1], vertices[4]));
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box.Add(new Triangle(vertices[7], vertices[2], vertices[1]));
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box.Add(new Triangle(vertices[3], vertices[2], vertices[7]));
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box.Add(new Triangle(vertices[3], vertices[7], vertices[6]));
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return box;
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}
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/// <summary>
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/// Creates a simple bounding box mesh for a complex input mesh
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/// </summary>
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/// <param name="meshIn"></param>
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/// <returns></returns>
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private static Mesh CreateBoundingBoxMesh(Mesh meshIn)
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{
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float minX = float.MaxValue;
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float maxX = float.MinValue;
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float minY = float.MaxValue;
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float maxY = float.MinValue;
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float minZ = float.MaxValue;
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float maxZ = float.MinValue;
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foreach (Vector3 v in meshIn.getVertexList())
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{
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if (v != null)
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{
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if (v.X < minX) minX = v.X;
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if (v.Y < minY) minY = v.Y;
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if (v.Z < minZ) minZ = v.Z;
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if (v.X > maxX) maxX = v.X;
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if (v.Y > maxY) maxY = v.Y;
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if (v.Z > maxZ) maxZ = v.Z;
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}
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}
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return CreateSimpleBoxMesh(minX, maxX, minY, maxY, minZ, maxZ);
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}
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private void ReportPrimError(string message, string primName, PrimMesh primMesh)
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{
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m_log.Error(message);
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m_log.Error("\nPrim Name: " + primName);
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m_log.Error("****** PrimMesh Parameters ******\n" + primMesh.ParamsToDisplayString());
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}
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private ulong GetMeshKey(PrimitiveBaseShape pbs, Vector3 size, float lod)
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{
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ulong hash = 5381;
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hash = djb2(hash, pbs.PathCurve);
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hash = djb2(hash, (byte)((byte)pbs.HollowShape | (byte)pbs.ProfileShape));
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hash = djb2(hash, pbs.PathBegin);
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hash = djb2(hash, pbs.PathEnd);
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hash = djb2(hash, pbs.PathScaleX);
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hash = djb2(hash, pbs.PathScaleY);
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hash = djb2(hash, pbs.PathShearX);
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hash = djb2(hash, pbs.PathShearY);
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hash = djb2(hash, (byte)pbs.PathTwist);
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hash = djb2(hash, (byte)pbs.PathTwistBegin);
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hash = djb2(hash, (byte)pbs.PathRadiusOffset);
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hash = djb2(hash, (byte)pbs.PathTaperX);
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hash = djb2(hash, (byte)pbs.PathTaperY);
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hash = djb2(hash, pbs.PathRevolutions);
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hash = djb2(hash, (byte)pbs.PathSkew);
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hash = djb2(hash, pbs.ProfileBegin);
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hash = djb2(hash, pbs.ProfileEnd);
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hash = djb2(hash, pbs.ProfileHollow);
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// TODO: Separate scale out from the primitive shape data (after
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// scaling is supported at the physics engine level)
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byte[] scaleBytes = size.GetBytes();
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for (int i = 0; i < scaleBytes.Length; i++)
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hash = djb2(hash, scaleBytes[i]);
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// Include LOD in hash, accounting for endianness
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byte[] lodBytes = new byte[4];
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Buffer.BlockCopy(BitConverter.GetBytes(lod), 0, lodBytes, 0, 4);
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if (!BitConverter.IsLittleEndian)
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{
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Array.Reverse(lodBytes, 0, 4);
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}
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for (int i = 0; i < lodBytes.Length; i++)
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hash = djb2(hash, lodBytes[i]);
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// include sculpt UUID
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if (pbs.SculptEntry)
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{
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scaleBytes = pbs.SculptTexture.GetBytes();
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for (int i = 0; i < scaleBytes.Length; i++)
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hash = djb2(hash, scaleBytes[i]);
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}
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return hash;
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}
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private ulong djb2(ulong hash, byte c)
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{
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return ((hash << 5) + hash) + (ulong)c;
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}
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private ulong djb2(ulong hash, ushort c)
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{
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hash = ((hash << 5) + hash) + (ulong)((byte)c);
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return ((hash << 5) + hash) + (ulong)(c >> 8);
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}
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private Mesh CreateMeshFromPrimMesher(string primName, PrimitiveBaseShape primShape, Vector3 size, float lod)
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{
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PrimMesh primMesh;
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PrimMesher.SculptMesh sculptMesh;
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List<Coord> coords = new List<Coord>();
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List<Face> faces = new List<Face>();
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Image idata = null;
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string decodedSculptFileName = "";
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if (primShape.SculptEntry)
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{
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if (((OpenMetaverse.SculptType)primShape.SculptType) == SculptType.Mesh)
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{
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if (!useMeshiesPhysicsMesh)
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return null;
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m_log.Debug("[MESH]: experimental mesh proxy generation");
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OSD meshOsd = null;
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if (primShape.SculptData.Length <= 0)
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{
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m_log.Error("[MESH]: asset data is zero length");
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return null;
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}
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long start = 0;
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using (MemoryStream data = new MemoryStream(primShape.SculptData))
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{
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try
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{
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OSD osd = OSDParser.DeserializeLLSDBinary(data);
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if (osd is OSDMap)
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meshOsd = (OSDMap)osd;
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else
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{
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m_log.Warn("[Mesh}: unable to cast mesh asset to OSDMap");
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return null;
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}
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}
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catch (Exception e)
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{
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m_log.Error("[MESH]: Exception deserializing mesh asset header:" + e.ToString());
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}
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start = data.Position;
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}
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if (meshOsd is OSDMap)
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{
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OSDMap physicsParms = null;
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OSDMap map = (OSDMap)meshOsd;
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if (map.ContainsKey("physics_shape"))
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physicsParms = (OSDMap)map["physics_shape"]; // old asset format
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else if (map.ContainsKey("physics_mesh"))
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physicsParms = (OSDMap)map["physics_mesh"]; // new asset format
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if (physicsParms == null)
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{
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m_log.Warn("[Mesh]: no recognized physics mesh found in mesh asset");
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return null;
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}
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int physOffset = physicsParms["offset"].AsInteger() + (int)start;
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int physSize = physicsParms["size"].AsInteger();
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if (physOffset < 0 || physSize == 0)
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return null; // no mesh data in asset
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OSD decodedMeshOsd = new OSD();
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byte[] meshBytes = new byte[physSize];
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System.Buffer.BlockCopy(primShape.SculptData, physOffset, meshBytes, 0, physSize);
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// byte[] decompressed = new byte[physSize * 5];
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try
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{
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using (MemoryStream inMs = new MemoryStream(meshBytes))
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{
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using (MemoryStream outMs = new MemoryStream())
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{
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using (ZOutputStream zOut = new ZOutputStream(outMs))
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{
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byte[] readBuffer = new byte[2048];
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int readLen = 0;
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while ((readLen = inMs.Read(readBuffer, 0, readBuffer.Length)) > 0)
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{
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zOut.Write(readBuffer, 0, readLen);
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}
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zOut.Flush();
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outMs.Seek(0, SeekOrigin.Begin);
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byte[] decompressedBuf = outMs.GetBuffer();
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decodedMeshOsd = OSDParser.DeserializeLLSDBinary(decompressedBuf);
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}
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}
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}
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}
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catch (Exception e)
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{
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m_log.Error("[MESH]: exception decoding physical mesh: " + e.ToString());
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return null;
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}
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OSDArray decodedMeshOsdArray = null;
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// physics_shape is an array of OSDMaps, one for each submesh
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if (decodedMeshOsd is OSDArray)
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{
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decodedMeshOsdArray = (OSDArray)decodedMeshOsd;
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foreach (OSD subMeshOsd in decodedMeshOsdArray)
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{
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if (subMeshOsd is OSDMap)
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{
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OSDMap subMeshMap = (OSDMap)subMeshOsd;
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OpenMetaverse.Vector3 posMax = ((OSDMap)subMeshMap["PositionDomain"])["Max"].AsVector3();
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OpenMetaverse.Vector3 posMin = ((OSDMap)subMeshMap["PositionDomain"])["Min"].AsVector3();
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ushort faceIndexOffset = (ushort)coords.Count;
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byte[] posBytes = subMeshMap["Position"].AsBinary();
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for (int i = 0; i < posBytes.Length; i += 6)
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{
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ushort uX = Utils.BytesToUInt16(posBytes, i);
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ushort uY = Utils.BytesToUInt16(posBytes, i + 2);
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ushort uZ = Utils.BytesToUInt16(posBytes, i + 4);
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Coord c = new Coord(
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Utils.UInt16ToFloat(uX, posMin.X, posMax.X) * size.X,
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Utils.UInt16ToFloat(uY, posMin.Y, posMax.Y) * size.Y,
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Utils.UInt16ToFloat(uZ, posMin.Z, posMax.Z) * size.Z);
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coords.Add(c);
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}
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byte[] triangleBytes = subMeshMap["TriangleList"].AsBinary();
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for (int i = 0; i < triangleBytes.Length; i += 6)
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{
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ushort v1 = (ushort)(Utils.BytesToUInt16(triangleBytes, i) + faceIndexOffset);
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ushort v2 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 2) + faceIndexOffset);
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ushort v3 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 4) + faceIndexOffset);
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Face f = new Face(v1, v2, v3);
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faces.Add(f);
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}
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}
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}
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}
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}
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}
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else
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{
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if (cacheSculptMaps && primShape.SculptTexture != UUID.Zero)
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{
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decodedSculptFileName = System.IO.Path.Combine(decodedSculptMapPath, "smap_" + primShape.SculptTexture.ToString());
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try
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{
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if (File.Exists(decodedSculptFileName))
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{
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idata = Image.FromFile(decodedSculptFileName);
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}
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}
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catch (Exception e)
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{
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m_log.Error("[SCULPT]: unable to load cached sculpt map " + decodedSculptFileName + " " + e.Message);
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}
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//if (idata != null)
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// m_log.Debug("[SCULPT]: loaded cached map asset for map ID: " + primShape.SculptTexture.ToString());
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}
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if (idata == null)
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{
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if (primShape.SculptData == null || primShape.SculptData.Length == 0)
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return null;
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try
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{
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OpenMetaverse.Imaging.ManagedImage unusedData;
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OpenMetaverse.Imaging.OpenJPEG.DecodeToImage(primShape.SculptData, out unusedData, out idata);
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unusedData = null;
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//idata = CSJ2K.J2kImage.FromBytes(primShape.SculptData);
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if (cacheSculptMaps && idata != null)
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{
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try { idata.Save(decodedSculptFileName, ImageFormat.MemoryBmp); }
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catch (Exception e) { m_log.Error("[SCULPT]: unable to cache sculpt map " + decodedSculptFileName + " " + e.Message); }
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}
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}
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catch (DllNotFoundException)
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{
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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!");
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return null;
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}
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catch (IndexOutOfRangeException)
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{
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m_log.Error("[PHYSICS]: OpenJpeg was unable to decode this. Physics Proxy generation failed");
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return null;
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}
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catch (Exception ex)
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{
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m_log.Error("[PHYSICS]: Unable to generate a Sculpty physics proxy. Sculpty texture decode failed: " + ex.Message);
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return null;
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}
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}
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PrimMesher.SculptMesh.SculptType sculptType;
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switch ((OpenMetaverse.SculptType)primShape.SculptType)
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{
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case OpenMetaverse.SculptType.Cylinder:
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sculptType = PrimMesher.SculptMesh.SculptType.cylinder;
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break;
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case OpenMetaverse.SculptType.Plane:
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sculptType = PrimMesher.SculptMesh.SculptType.plane;
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break;
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case OpenMetaverse.SculptType.Torus:
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sculptType = PrimMesher.SculptMesh.SculptType.torus;
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break;
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case OpenMetaverse.SculptType.Sphere:
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sculptType = PrimMesher.SculptMesh.SculptType.sphere;
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break;
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default:
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sculptType = PrimMesher.SculptMesh.SculptType.plane;
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break;
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}
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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;
|
|
}
|
|
|
|
public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod)
|
|
{
|
|
return CreateMesh(primName, primShape, size, lod, false);
|
|
}
|
|
|
|
public IMesh CreateMesh(String primName, PrimitiveBaseShape primShape, Vector3 size, float lod, bool isPhysical)
|
|
{
|
|
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
|
|
|
|
key = GetMeshKey(primShape, 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();
|
|
|
|
m_uniqueMeshes.Add(key, mesh);
|
|
}
|
|
|
|
return mesh;
|
|
}
|
|
}
|
|
}
|