//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#include "platform/platform.h"
#include "ts/tsShape.h"

#include "ts/tsLastDetail.h"
#include "ts/tsMaterialList.h"
#include "core/stringTable.h"
#include "console/console.h"
#include "ts/tsShapeInstance.h"
#include "collision/convex.h"
#include "materials/matInstance.h"
#include "materials/materialManager.h"
#include "math/mathIO.h"
#include "core/util/endian.h"
#include "core/stream/fileStream.h"
#include "console/compiler.h"
#include "core/fileObject.h"

#ifdef TORQUE_COLLADA
extern TSShape* loadColladaShape(const Torque::Path &path);
#endif

#ifdef TORQUE_ASSIMP
extern TSShape* assimpLoadShape(const Torque::Path &path);
#endif

/// most recent version -- this is the version we write
S32 TSShape::smVersion = 28;
/// the version currently being read...valid only during a read
S32 TSShape::smReadVersion = -1;
const U32 TSShape::smMostRecentExporterVersion = DTS_EXPORTER_CURRENT_VERSION;

F32 TSShape::smAlphaOutLastDetail = -1.0f;
F32 TSShape::smAlphaInBillboard = 0.15f;
F32 TSShape::smAlphaOutBillboard = 0.15f;
F32 TSShape::smAlphaInDefault = -1.0f;
F32 TSShape::smAlphaOutDefault = -1.0f;

// don't bother even loading this many of the highest detail levels (but
// always load last renderable detail)
S32 TSShape::smNumSkipLoadDetails = 0;

bool TSShape::smInitOnRead = true;
bool TSShape::smUseHardwareSkinning = true;
U32 TSShape::smMaxSkinBones = 70;


TSShape::TSShape()
{
   mExporterVersion = 124;
   mSmallestVisibleSize = 2;
   mSmallestVisibleDL = 0;
   mRadius = 0;
   mFlags = 0;
   tubeRadius = 0;
   data = 0;
   materialList = NULL;
   mReadVersion = -1; // -1 means constructed from scratch (e.g., in exporter or no read yet)
   mSequencesConstructed = false;
   mShapeData = NULL;
   mShapeDataSize = 0;
   mVertexSize = 0;
   mUseDetailFromScreenError = false;
   mNeedReinit = false;

   mDetailLevelLookup.setSize( 1 );
   mDetailLevelLookup[0].set( -1, 0 );

   VECTOR_SET_ASSOCIATION(sequences);
   VECTOR_SET_ASSOCIATION(nodeRotations);
   VECTOR_SET_ASSOCIATION(nodeTranslations);
   VECTOR_SET_ASSOCIATION(nodeUniformScales);
   VECTOR_SET_ASSOCIATION(nodeAlignedScales);
   VECTOR_SET_ASSOCIATION(nodeArbitraryScaleRots);
   VECTOR_SET_ASSOCIATION(nodeArbitraryScaleFactors);
   VECTOR_SET_ASSOCIATION(groundRotations);
   VECTOR_SET_ASSOCIATION(groundTranslations);
   VECTOR_SET_ASSOCIATION(triggers);
   VECTOR_SET_ASSOCIATION(billboardDetails);
   VECTOR_SET_ASSOCIATION(detailCollisionAccelerators);
   VECTOR_SET_ASSOCIATION(names);

   VECTOR_SET_ASSOCIATION( nodes );
   VECTOR_SET_ASSOCIATION( objects );
   VECTOR_SET_ASSOCIATION( objectStates );
   VECTOR_SET_ASSOCIATION( subShapeFirstNode );
   VECTOR_SET_ASSOCIATION( subShapeFirstObject );
   VECTOR_SET_ASSOCIATION( detailFirstSkin );
   VECTOR_SET_ASSOCIATION( subShapeNumNodes );
   VECTOR_SET_ASSOCIATION( subShapeNumObjects );
   VECTOR_SET_ASSOCIATION( details );
   VECTOR_SET_ASSOCIATION( defaultRotations );
   VECTOR_SET_ASSOCIATION( defaultTranslations );

   VECTOR_SET_ASSOCIATION( subShapeFirstTranslucentObject );
   VECTOR_SET_ASSOCIATION( meshes );

   VECTOR_SET_ASSOCIATION( alphaIn );
   VECTOR_SET_ASSOCIATION( alphaOut );
}

TSShape::~TSShape()
{
   delete materialList;

   S32 i;

   // everything left over here is a legit mesh
   for (i=0; i<meshes.size(); i++)
   {
      if (!meshes[i])
         continue;

      // Handle meshes that were either assembled with the shape or added later
      if (((S8*)meshes[i] >= mShapeData) && ((S8*)meshes[i] < (mShapeData + mShapeDataSize)))
         destructInPlace(meshes[i]);
      else
         delete meshes[i];
   }

   for (i=0; i<billboardDetails.size(); i++)
   {
      delete billboardDetails[i];
      billboardDetails[i] = NULL;
   }
   billboardDetails.clear();

   // Delete any generated accelerators
   S32 dca;
   for (dca = 0; dca < detailCollisionAccelerators.size(); dca++)
   {
      ConvexHullAccelerator* accel = detailCollisionAccelerators[dca];
      if (accel != NULL) {
         delete [] accel->vertexList;
         delete [] accel->normalList;
         for (S32 j = 0; j < accel->numVerts; j++)
            delete [] accel->emitStrings[j];
         delete [] accel->emitStrings;
         delete accel;
      }
   }
   for (dca = 0; dca < detailCollisionAccelerators.size(); dca++)
      detailCollisionAccelerators[dca] = NULL;

   if( mShapeData )
      delete[] mShapeData;
}

const String& TSShape::getName( S32 nameIndex ) const
{
   AssertFatal(nameIndex>=0 && nameIndex<names.size(),"TSShape::getName");
   return names[nameIndex];
}

const String& TSShape::getMeshName( S32 meshIndex ) const
{
   S32 nameIndex = objects[meshIndex].nameIndex;
   if ( nameIndex < 0 )
      return String::EmptyString;

   return names[nameIndex];
}

const String& TSShape::getNodeName( S32 nodeIndex ) const
{   
   S32 nameIdx = nodes[nodeIndex].nameIndex;
   if ( nameIdx < 0 )
      return String::EmptyString;

   return names[nameIdx];
}

const String& TSShape::getSequenceName( S32 seqIndex ) const
{
   AssertFatal(seqIndex >= 0 && seqIndex<sequences.size(),"TSShape::getSequenceName index beyond range");

   S32 nameIdx = sequences[seqIndex].nameIndex;
   if ( nameIdx < 0 )
      return String::EmptyString;

   return names[nameIdx];
}

S32 TSShape::findName(const String &name) const
{
   for (S32 i=0; i<names.size(); i++)
   {
      if (names[i].equal( name, String::NoCase ))
         return i;
   }
  
   return -1;
}

const String& TSShape::getTargetName( S32 mapToNameIndex ) const
{
	S32 targetCount = materialList->getMaterialNameList().size();

	if(mapToNameIndex < 0 || mapToNameIndex >= targetCount)
		return String::EmptyString;

	return materialList->getMaterialNameList()[mapToNameIndex];
}

S32 TSShape::getTargetCount() const
{
	return materialList->getMaterialNameList().size();
}

S32 TSShape::findNode(S32 nameIndex) const
{
   for (S32 i=0; i<nodes.size(); i++)
      if (nodes[i].nameIndex==nameIndex)
         return i;
   return -1;
}

S32 TSShape::findObject(S32 nameIndex) const
{
   for (S32 i=0; i<objects.size(); i++)
      if (objects[i].nameIndex==nameIndex)
         return i;
   return -1;
}

S32 TSShape::findDetail(S32 nameIndex) const
{
   for (S32 i=0; i<details.size(); i++)
      if (details[i].nameIndex==nameIndex)
         return i;
   return -1;
}

S32 TSShape::findDetailBySize(S32 size) const
{
   for (S32 i=0; i<details.size(); i++)
      if (details[i].size==size)
         return i;
   return -1;
}

S32 TSShape::findSequence(S32 nameIndex) const
{
   for (S32 i=0; i<sequences.size(); i++)
      if (sequences[i].nameIndex==nameIndex)
         return i;
   return -1;
}

bool TSShape::findMeshIndex(const String& meshName, S32& objIndex, S32& meshIndex)
{
   // Determine the object name and detail size from the mesh name
   S32 detailSize = 999;  
   objIndex = findObject(String::GetTrailingNumber(meshName, detailSize));
   if (objIndex < 0)
      return false;

   // Determine the subshape this object belongs to
   S32 subShapeIndex = getSubShapeForObject(objIndex);
   AssertFatal(subShapeIndex < subShapeFirstObject.size(), "Could not find subshape for object!");

   // Get the detail levels for the subshape
   Vector<S32> validDetails;
   getSubShapeDetails(subShapeIndex, validDetails);

   // Find the detail with the correct size
   for (meshIndex = 0; meshIndex < validDetails.size(); meshIndex++)
   {
      const TSShape::Detail& det = details[validDetails[meshIndex]];
      if (detailSize == det.size)
         return true;
   }

   return false;
}

bool TSShape::needsBufferUpdate()
{
   // No buffer? definitely need an update!
   if (mVertexSize == 0 || mShapeVertexData.size == 0)
      return true;

   // Check if we have modified vertex data
   for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
   {
      TSMesh *mesh = *iter;
      if (!mesh ||
         (mesh->getMeshType() != TSMesh::StandardMeshType &&
            mesh->getMeshType() != TSMesh::SkinMeshType))
         continue;

      // NOTE: cant use mVertexData.isReady since that might not be init'd at this stage
      if (mesh->mVertSize == 0)
         return true;
   }

   return false;
}

TSMesh* TSShape::findMesh(const String& meshName)
{
   S32 objIndex, meshIndex;
   if (!findMeshIndex(meshName, objIndex, meshIndex))
      return 0;
   return meshes[objects[objIndex].startMeshIndex + meshIndex];
}

S32 TSShape::getSubShapeForNode(S32 nodeIndex)
{
   for (S32 i = 0; i < subShapeFirstNode.size(); i++)
   {
      S32 start = subShapeFirstNode[i];
      S32 end = start + subShapeNumNodes[i];
      if ((nodeIndex >= start) && (nodeIndex < end))
         return i;;
   }
   return -1;
}

S32 TSShape::getSubShapeForObject(S32 objIndex)
{
   for (S32 i = 0; i < subShapeFirstObject.size(); i++)
   {
      S32 start = subShapeFirstObject[i];
      S32 end = start + subShapeNumObjects[i];
      if ((objIndex >= start) && (objIndex < end))
         return i;
   }
   return -1;
}

void TSShape::getSubShapeDetails(S32 subShapeIndex, Vector<S32>& validDetails)
{
   validDetails.clear();
   for (S32 i = 0; i < details.size(); i++)
   {
      if ((details[i].subShapeNum == subShapeIndex) ||
          (details[i].subShapeNum < 0))
          validDetails.push_back(i);
   }
}

void TSShape::getNodeWorldTransform(S32 nodeIndex, MatrixF* mat) const
{
   if ( nodeIndex == -1 )
   {
      mat->identity();
   }
   else
   {
      // Calculate the world transform of the given node
      defaultRotations[nodeIndex].getQuatF().setMatrix(mat);
      mat->setPosition(defaultTranslations[nodeIndex]);

      S32 parentIndex = nodes[nodeIndex].parentIndex;
      while (parentIndex != -1)
      {
         MatrixF mat2(*mat);
         defaultRotations[parentIndex].getQuatF().setMatrix(mat);
         mat->setPosition(defaultTranslations[parentIndex]);
         mat->mul(mat2);

         parentIndex = nodes[parentIndex].parentIndex;
      }
   }
}

void TSShape::getNodeObjects(S32 nodeIndex, Vector<S32>& nodeObjects)
{
   for (S32 i = 0; i < objects.size(); i++)
   {
      if ((nodeIndex == -1) || (objects[i].nodeIndex == nodeIndex))
         nodeObjects.push_back(i);
   }
}

void TSShape::getNodeChildren(S32 nodeIndex, Vector<S32>& nodeChildren)
{
   for (S32 i = 0; i < nodes.size(); i++)
   {
      if (nodes[i].parentIndex == nodeIndex)
         nodeChildren.push_back(i);
   }
}

void TSShape::getObjectDetails(S32 objIndex, Vector<S32>& objDetails)
{
   // Get the detail levels for this subshape
   Vector<S32> validDetails;
   getSubShapeDetails(getSubShapeForObject(objIndex), validDetails);

   // Get the non-null details for this object
   const TSShape::Object& obj = objects[objIndex];
   for (S32 i = 0; i < obj.numMeshes; i++)
   {
      if (meshes[obj.startMeshIndex + i])
         objDetails.push_back(validDetails[i]);
   }
}

void TSShape::init()
{
   initObjects();
   initVertexFeatures();
   initMaterialList();
   mNeedReinit = false;
}

void TSShape::initObjects()
{
   S32 numSubShapes = subShapeFirstNode.size();
   AssertFatal(numSubShapes == subShapeFirstObject.size(), "TSShape::initObjects");

   S32 i, j;

   // set up parent/child relationships on nodes and objects
   for (i = 0; i<nodes.size(); i++)
      nodes[i].firstObject = nodes[i].firstChild = nodes[i].nextSibling = -1;
   for (i = 0; i<nodes.size(); i++)
   {
      S32 parentIndex = nodes[i].parentIndex;
      if (parentIndex >= 0)
      {
         if (nodes[parentIndex].firstChild<0)
            nodes[parentIndex].firstChild = i;
         else
         {
            S32 child = nodes[parentIndex].firstChild;
            while (nodes[child].nextSibling >= 0)
               child = nodes[child].nextSibling;
            nodes[child].nextSibling = i;
         }
      }
   }
   for (i = 0; i<objects.size(); i++)
   {
      objects[i].nextSibling = -1;

      S32 nodeIndex = objects[i].nodeIndex;
      if (nodeIndex >= 0)
      {
         if (nodes[nodeIndex].firstObject<0)
            nodes[nodeIndex].firstObject = i;
         else
         {
            S32 objectIndex = nodes[nodeIndex].firstObject;
            while (objects[objectIndex].nextSibling >= 0)
               objectIndex = objects[objectIndex].nextSibling;
            objects[objectIndex].nextSibling = i;
         }
      }
   }

   mFlags = 0;
   for (i = 0; i<sequences.size(); i++)
   {
      if (!sequences[i].animatesScale())
         continue;

      U32 curVal = mFlags & AnyScale;
      U32 newVal = sequences[i].flags & AnyScale;
      mFlags &= ~(AnyScale);
      mFlags |= getMax(curVal, newVal); // take the larger value (can only convert upwards)
   }

   // set up alphaIn and alphaOut vectors...
   alphaIn.setSize(details.size());
   alphaOut.setSize(details.size());

   for (i = 0; i<details.size(); i++)
   {
      if (details[i].size<0)
      {
         // we don't care...
         alphaIn[i] = 0.0f;
         alphaOut[i] = 0.0f;
      }
      else if (i + 1 == details.size() || details[i + 1].size<0)
      {
         alphaIn[i] = 0.0f;
         alphaOut[i] = smAlphaOutLastDetail;
      }
      else
      {
         if (details[i + 1].subShapeNum<0)
         {
            // following detail is a billboard detail...treat special...
            alphaIn[i] = smAlphaInBillboard;
            alphaOut[i] = smAlphaOutBillboard;
         }
         else
         {
            // next detail is normal detail
            alphaIn[i] = smAlphaInDefault;
            alphaOut[i] = smAlphaOutDefault;
         }
      }
   }

   for (i = mSmallestVisibleDL - 1; i >= 0; i--)
   {
      if (i<smNumSkipLoadDetails)
      {
         // this detail level renders when pixel size
         // is larger than our cap...zap all the meshes and decals
         // associated with it and use the next detail level
         // instead...
         S32 ss = details[i].subShapeNum;
         S32 od = details[i].objectDetailNum;

         if (ss == details[i + 1].subShapeNum && od == details[i + 1].objectDetailNum)
            // doh! already done this one (init can be called multiple times on same shape due
            // to sequence importing).
            continue;
         details[i].subShapeNum = details[i + 1].subShapeNum;
         details[i].objectDetailNum = details[i + 1].objectDetailNum;
      }
   }

   for (i = 0; i<details.size(); i++)
   {
      S32 count = 0;
      S32 ss = details[i].subShapeNum;
      S32 od = details[i].objectDetailNum;
      if (ss<0)
      {
         // billboard detail...
         details[i].polyCount = 2;
         continue;
      }
      S32 start = subShapeFirstObject[ss];
      S32 end = start + subShapeNumObjects[ss];
      for (j = start; j<end; j++)
      {
         Object & obj = objects[j];
         if (od<obj.numMeshes)
         {
            TSMesh * mesh = meshes[obj.startMeshIndex + od];
            count += mesh ? mesh->getNumPolys() : 0;
         }
      }
      details[i].polyCount = count;
   }

   // Init the collision accelerator array.  Note that we don't compute the
   //  accelerators until the app requests them
   {
      S32 dca;
      for (dca = 0; dca < detailCollisionAccelerators.size(); dca++)
      {
         ConvexHullAccelerator* accel = detailCollisionAccelerators[dca];
         if (accel != NULL) {
            delete[] accel->vertexList;
            delete[] accel->normalList;
            for (S32 vertID = 0; vertID < accel->numVerts; vertID++)
               delete[] accel->emitStrings[vertID];
            delete[] accel->emitStrings;
            delete accel;
         }
      }

      detailCollisionAccelerators.setSize(details.size());
      for (dca = 0; dca < detailCollisionAccelerators.size(); dca++)
         detailCollisionAccelerators[dca] = NULL;
   }

   // Assign mesh parents & format
   for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
   {
      TSMesh *mesh = *iter;
      if (!mesh)
         continue;

      if (mesh->mParentMesh >= meshes.size())
      {
         Con::warnf("Mesh %i has a bad parentMeshObject (%i)", iter - meshes.begin(), mesh->mParentMesh);
      }

      if (mesh->mParentMesh >= 0 && mesh->mParentMesh < meshes.size())
      {
         mesh->mParentMeshObject = meshes[mesh->mParentMesh];
      }
      else
      {
         mesh->mParentMeshObject = NULL;
      }

      mesh->mVertexFormat = &mVertexFormat;
   }
}

void TSShape::initVertexBuffers()
{
   // Assumes mVertexData is valid
   if (!mShapeVertexData.vertexDataReady)
   {
      AssertFatal(false, "WTF");
   }

   U32 destIndices = 0;
   U32 destPrims = 0;

   for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
   {
      TSMesh *mesh = *iter;
      if (!mesh ||
         (mesh->getMeshType() != TSMesh::StandardMeshType &&
            mesh->getMeshType() != TSMesh::SkinMeshType))
         continue;

      destIndices += mesh->mIndices.size();
      destPrims += mesh->mPrimitives.size();
   }

   // For HW skinning we can just use the static buffer
   if (TSShape::smUseHardwareSkinning)
   {
      getVertexBuffer(mShapeVertexBuffer, GFXBufferTypeStatic);
   }

   // Also the IBO
   mShapeVertexIndices.set(GFX, destIndices, destPrims, GFXBufferTypeStatic);
   U16 *indicesStart = NULL;
   mShapeVertexIndices.lock(&indicesStart, NULL);
   U16 *ibIndices = indicesStart;
   GFXPrimitive *piInput = mShapeVertexIndices->mPrimitiveArray;
   U32 vertStart = 0;
   U32 primStart = 0;
   U32 indStart = 0;

   // Create VBO
   for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
   {
      TSMesh *mesh = *iter;
      if (!mesh ||
         (mesh->getMeshType() != TSMesh::StandardMeshType &&
            mesh->getMeshType() != TSMesh::SkinMeshType))
         continue;

      // Make the offset vbo
      mesh->mPrimBufferOffset = primStart;

      // Dump primitives to locked buffer
      mesh->dumpPrimitives(vertStart, indStart, piInput, ibIndices);

      AssertFatal(mesh->mVertOffset / mVertexSize == vertStart, "offset mismatch");

      vertStart += mesh->mNumVerts;
      primStart += mesh->mPrimitives.size();
      indStart += mesh->mIndices.size();

      mesh->mVB = mShapeVertexBuffer;
      mesh->mPB = mShapeVertexIndices;

      // Advance
      piInput += mesh->mPrimitives.size();
      ibIndices += mesh->mIndices.size();

      if (TSSkinMesh::smDebugSkinVerts && mesh->getMeshType() == TSMesh::SkinMeshType)
      {
         static_cast<TSSkinMesh*>(mesh)->printVerts();
      }
   }

#ifdef TORQUE_DEBUG
   // Verify prims
   if (TSSkinMesh::smDebugSkinVerts)
   {
      U32 vertsInBuffer = mShapeVertexData.size / mVertexSize;
      U32 indsInBuffer = ibIndices - indicesStart;

      for (U32 primID = 0; primID < primStart; primID++)
      {
         GFXPrimitive &prim = mShapeVertexIndices->mPrimitiveArray[primID];

         if (prim.type != GFXTriangleList && prim.type != GFXTriangleStrip)
         {
            AssertFatal(false, "Unexpected triangle list");
         }

         if (prim.type == GFXTriangleStrip)
            continue;

         AssertFatal(prim.startVertex < vertsInBuffer, "wrong start vertex");
         AssertFatal((prim.startVertex + prim.numVertices) <= vertsInBuffer, "too many verts");
         AssertFatal(prim.startIndex + (prim.numPrimitives * 3) <= indsInBuffer, "too many inds");

         for (U32 i = prim.startIndex; i < prim.startIndex + (prim.numPrimitives * 3); i++)
         {
            if (indicesStart[i] >= vertsInBuffer)
            {
               AssertFatal(false, "vert not in buffer");
            }
            U16 idx = indicesStart[i];
            if (idx < prim.minIndex)
            {
               AssertFatal(false, "index out of minIndex range");
            }
         }
      }
   }
#endif

   mShapeVertexIndices.unlock();
}

void TSShape::getVertexBuffer(TSVertexBufferHandle &vb, GFXBufferType bufferType)
{
   vb.set(GFX, mVertexSize, &mVertexFormat, mShapeVertexData.size / mVertexSize, bufferType);

   U8 *vertPtr = vb.lock();
   dMemcpy(vertPtr, mShapeVertexData.base, mShapeVertexData.size);
   vb.unlock();
}

void TSShape::initVertexBufferPointers()
{
   if (mBasicVertexFormat.vertexSize == -1)
      return;
   AssertFatal(mVertexSize == mBasicVertexFormat.vertexSize, "vertex size mismatch");

   for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
   {
      TSMesh *mesh = *iter;
      if (mesh &&
         (mesh->getMeshType() == TSMesh::StandardMeshType ||
            mesh->getMeshType() == TSMesh::SkinMeshType))
      {
         // Set buffer
         AssertFatal(mesh->mNumVerts == 0 || mesh->mNumVerts >= mesh->vertsPerFrame, "invalid verts per frame");
         if (mesh->mVertSize > 0 && !mesh->mVertexData.isReady())
         {
            U32 boneOffset = 0;
            U32 texCoordOffset = 0;
            AssertFatal(mesh->mVertSize == mVertexFormat.getSizeInBytes(), "mismatch in format size");

            if (mBasicVertexFormat.boneOffset >= 0)
            {
               boneOffset = mBasicVertexFormat.boneOffset;
            }

            if (mBasicVertexFormat.texCoordOffset >= 0)
            {
               texCoordOffset = mBasicVertexFormat.texCoordOffset;
            }

            // Initialize the vertex data
            mesh->mVertexData.set(mShapeVertexData.base + mesh->mVertOffset, mesh->mVertSize, mesh->mNumVerts, texCoordOffset, boneOffset, false);
            mesh->mVertexData.setReady(true);
         }
      }
   }
}

void TSShape::initVertexFeatures()
{

   if (!needsBufferUpdate())
   {
      // Init format from basic format
      mVertexFormat.clear();
      mBasicVertexFormat.getFormat(mVertexFormat);
      mVertexSize = mVertexFormat.getSizeInBytes();

      initVertexBufferPointers();

      for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
      {
         TSMesh *mesh = *iter;
         if (mesh &&
            (mesh->getMeshType() == TSMesh::SkinMeshType))
         {
            static_cast<TSSkinMesh*>(mesh)->createSkinBatchData();
         }
      }

      // Make sure VBO is init'd
      initVertexBuffers();
      return;
   }

   // Cleanout VBO
   mShapeVertexBuffer = NULL;

   // Make sure mesh has verts stored in mesh data, we're recreating the buffer
   TSBasicVertexFormat basicFormat;
   
   initVertexBufferPointers();

   for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
   {
      TSMesh *mesh = *iter;
      if (mesh &&
         (mesh->getMeshType() == TSMesh::StandardMeshType ||
            mesh->getMeshType() == TSMesh::SkinMeshType))
      {
         // Make sure we have everything in the vert lists
         mesh->makeEditable();

         // We need the skin batching data here to determine bone counts
         if (mesh->getMeshType() == TSMesh::SkinMeshType)
         {
            static_cast<TSSkinMesh*>(mesh)->createSkinBatchData();
         }

         basicFormat.addMeshRequirements(mesh);
      }
   }

   mVertexFormat.clear();
   mBasicVertexFormat = basicFormat;
   mBasicVertexFormat.getFormat(mVertexFormat);
   mBasicVertexFormat.vertexSize = mVertexFormat.getSizeInBytes();
   mVertexSize = mBasicVertexFormat.vertexSize;

   U32 destVertex = 0;
   U32 destIndices = 0;

   // Go fix up meshes to include defaults for optional features
   // and initialize them if they're not a skin mesh.
   U32 count = 0;
   for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
   {
      TSMesh *mesh = *iter;
      if (!mesh ||
         (mesh->getMeshType() != TSMesh::StandardMeshType &&
            mesh->getMeshType() != TSMesh::SkinMeshType))
         continue;

      mesh->mVertSize = mVertexSize;
      mesh->mVertOffset = destVertex;

      destVertex += mesh->mVertSize * mesh->getNumVerts();
      destIndices += mesh->mIndices.size();

      count += 1;
   }

   // Don't set up if we have no meshes
   if (count == 0)
   {
      mShapeVertexData.set(NULL, 0);
      mShapeVertexData.vertexDataReady = false;
      return;
   }

   // Now we can create the VBO
   mShapeVertexData.set(NULL, 0);
   U8 *vertexData = (U8*)dMalloc_aligned(destVertex, 16);
   U8 *vertexDataPtr = vertexData;
   mShapeVertexData.set(vertexData, destVertex);

   // Create VBO
   for (Vector<TSMesh*>::iterator iter = meshes.begin(); iter != meshes.end(); iter++)
   {
      TSMesh *mesh = *iter;

      if (!mesh ||
         (mesh->getMeshType() != TSMesh::StandardMeshType &&
            mesh->getMeshType() != TSMesh::SkinMeshType))
         continue;

      U32 boneOffset = 0;
      U32 texCoordOffset = 0;
      AssertFatal(mesh->mVertSize == mVertexFormat.getSizeInBytes(), "mismatch in format size");

      if (mBasicVertexFormat.boneOffset >= 0)
      {
         boneOffset = mBasicVertexFormat.boneOffset;
      }

      if (mBasicVertexFormat.texCoordOffset >= 0)
      {
         texCoordOffset = mBasicVertexFormat.texCoordOffset;
      }

      // Dump everything
      mesh->mVertexData.setReady(false);
      mesh->mVertSize = mVertexSize;
      AssertFatal(mesh->mVertOffset == vertexDataPtr - vertexData, "vertex offset mismatch");
      mesh->mNumVerts = mesh->getNumVerts();

      // Correct bad meshes
      if (mesh->mNumVerts != 0 && mesh->vertsPerFrame > mesh->mNumVerts)
      {
         Con::warnf("Shape mesh has bad vertsPerFrame (%i, should be <= %i)", mesh->vertsPerFrame, mesh->mNumVerts);
         mesh->vertsPerFrame = mesh->mNumVerts;
      }

      mesh->mVertexData.set(mShapeVertexData.base + mesh->mVertOffset, mesh->mVertSize, mesh->mNumVerts, texCoordOffset, boneOffset, false);
      mesh->convertToVertexData();
      mesh->mVertexData.setReady(true);

#ifdef TORQUE_DEBUG
      AssertFatal(mesh->mNumVerts == mesh->mVerts.size(), "vert mismatch");
      for (U32 i = 0; i < mesh->mNumVerts; i++)
      {
         Point3F v1 = mesh->mVerts[i];
         Point3F v2 = mesh->mVertexData.getBase(i).vert();
         AssertFatal(mesh->mVerts[i] == mesh->mVertexData.getBase(i).vert(), "vert data mismatch");
      }

      if (mesh->getMeshType() == TSMesh::SkinMeshType)
      {
         AssertFatal(mesh->getMaxBonesPerVert() != 0, "Skin mesh has no bones used, very strange!");
      }
#endif

      // Advance
      vertexDataPtr += mesh->mVertSize * mesh->mNumVerts;

      AssertFatal(vertexDataPtr - vertexData <= destVertex, "Vertex data overflow");
   }

   mShapeVertexData.vertexDataReady = true;

   initVertexBuffers();
}

void TSShape::setupBillboardDetails( const String &cachePath )
{
   // set up billboard details -- only do this once, meaning that
   // if we add a sequence to the shape we don't redo the billboard
   // details...
   if ( !billboardDetails.empty() )
      return;

   for ( U32 i=0; i < details.size(); i++ )
   {
      const Detail &det = details[i];

      if ( det.subShapeNum >= 0 )
         continue; // not a billboard detail

      while (billboardDetails.size() <= i )
         billboardDetails.push_back(NULL);

      billboardDetails[i] = new TSLastDetail(   this,
                                                cachePath,
                                                det.bbEquatorSteps,
                                                det.bbPolarSteps,
                                                det.bbPolarAngle,
                                                det.bbIncludePoles,
                                                det.bbDetailLevel,
                                                det.bbDimension );

      billboardDetails[i]->update();
   }
}

void TSShape::setupBillboardDetails(const String& cachePath, const String& diffsePath, const String& normalPath)
{
   // set up billboard details -- only do this once, meaning that
   // if we add a sequence to the shape we don't redo the billboard
   // details...
   if (!billboardDetails.empty())
      return;

   for (U32 i = 0; i < details.size(); i++)
   {
      const Detail& det = details[i];

      if (det.subShapeNum >= 0)
         continue; // not a billboard detail

      while (billboardDetails.size() <= i)
         billboardDetails.push_back(NULL);

      billboardDetails[i] = new TSLastDetail(this,
         cachePath,
         diffsePath,
         normalPath,
         det.bbEquatorSteps,
         det.bbPolarSteps,
         det.bbPolarAngle,
         det.bbIncludePoles,
         det.bbDetailLevel,
         det.bbDimension);

      billboardDetails[i]->update();
   }
}

void TSShape::initMaterialList()
{
   S32 numSubShapes = subShapeFirstObject.size();
   #if defined(TORQUE_MAX_LIB)
   subShapeFirstTranslucentObject.setSize(numSubShapes);
   #endif

   S32 i,j,k;
   // for each subshape, find the first translucent object
   // also, while we're at it, set mHasTranslucency
   for (S32 ss = 0; ss<numSubShapes; ss++)
   {
      S32 start = subShapeFirstObject[ss];
      S32 end = subShapeNumObjects[ss];
      subShapeFirstTranslucentObject[ss] = end;
      for (i=start; i<end; i++)
      {
         // check to see if this object has translucency
         Object & obj = objects[i];
         for (j=0; j<obj.numMeshes; j++)
         {
            TSMesh * mesh = meshes[obj.startMeshIndex+j];
            if (!mesh)
               continue;

            for (k=0; k<mesh->mPrimitives.size(); k++)
            {
               if (mesh->mPrimitives[k].matIndex & TSDrawPrimitive::NoMaterial)
                  continue;
               S32 flags = materialList->getFlags(mesh->mPrimitives[k].matIndex & TSDrawPrimitive::MaterialMask);
               if (flags & TSMaterialList::AuxiliaryMap)
                  continue;
               if (flags & TSMaterialList::Translucent)
               {
                  mFlags |= HasTranslucency;
                  subShapeFirstTranslucentObject[ss] = i;
                  break;
               }
            }
            if (k!=mesh->mPrimitives.size())
               break;
         }
         if (j!=obj.numMeshes)
            break;
      }
      if (i!=end)
         break;
   }

}

bool TSShape::preloadMaterialList(const Torque::Path &path)
{
   if (materialList)
      materialList->setTextureLookupPath(path.getPath());
   return true;
}

bool TSShape::buildConvexHull(S32 dl) const
{
   AssertFatal(dl>=0 && dl<details.size(),"TSShape::buildConvexHull: detail out of range");

   bool ok = true;

   const Detail & detail = details[dl];
   S32 ss = detail.subShapeNum;
   S32 od = detail.objectDetailNum;

   S32 start = subShapeFirstObject[ss];
   S32 end   = subShapeNumObjects[ss];
   for (S32 i=start; i<end; i++)
   {
      TSMesh * mesh = meshes[objects[i].startMeshIndex+od];
      if (!mesh)
         continue;
      ok &= mesh->buildConvexHull();
   }
   return ok;
}

Vector<MatrixF> gTempNodeTransforms(__FILE__, __LINE__);

void TSShape::computeBounds(S32 dl, Box3F & bounds) const
{
   // if dl==-1, nothing to do
   if (dl==-1)
      return;

   AssertFatal(dl>=0 && dl<details.size(),"TSShapeInstance::computeBounds");

   // get subshape and object detail
   const TSDetail * detail = &details[dl];
   S32 ss = detail->subShapeNum;
   S32 od = detail->objectDetailNum;

   // If we have no subshapes then there is
   // no valid bounds for this detail level.
   if ( ss < 0 )
      return;

   // set up temporary storage for non-local transforms...
   S32 i;
   S32 start = subShapeFirstNode[ss];
   S32 end   = subShapeNumNodes[ss] + start;
   gTempNodeTransforms.setSize(end-start);
   for (i=start; i<end; i++)
   {
      MatrixF mat;
      QuatF q;
      TSTransform::setMatrix(defaultRotations[i].getQuatF(&q),defaultTranslations[i],&mat);
      if (nodes[i].parentIndex>=0)
         gTempNodeTransforms[i-start].mul(gTempNodeTransforms[nodes[i].parentIndex-start],mat);
      else
         gTempNodeTransforms[i-start] = mat;
   }

   // run through objects and updating bounds as we go
   bounds.minExtents.set( 10E30f, 10E30f, 10E30f);
   bounds.maxExtents.set(-10E30f,-10E30f,-10E30f);
   Box3F box;
   start = subShapeFirstObject[ss];
   end   = subShapeNumObjects[ss] + start;
   for (i=start; i<end; i++)
   {
      const Object * object = &objects[i];
      TSMesh * mesh = od<object->numMeshes ? meshes[object->startMeshIndex+od] : NULL;
      if (mesh)
      {
         static MatrixF idMat(true);
         if (object->nodeIndex<0)
            mesh->computeBounds(idMat,box);
         else
            mesh->computeBounds(gTempNodeTransforms[object->nodeIndex-start],box);
         bounds.minExtents.setMin(box.minExtents);
         bounds.maxExtents.setMax(box.maxExtents);
      }
   }
}

TSShapeAlloc TSShape::smTSAlloc;

#define tsalloc TSShape::smTSAlloc


// messy stuff: check to see if we should "skip" meshNum
// this assumes that meshes for a given object are in a row
// skipDL is the lowest detail number we keep (i.e., the # of details we skip)
bool TSShape::checkSkip(S32 meshNum, S32 & curObject, S32 skipDL)
{
   if (skipDL==0)
      // easy out...
      return false;

   // skip detail level exists on this subShape
   S32 skipSS = details[skipDL].subShapeNum;

   if (curObject<objects.size())
   {
      S32 start = objects[curObject].startMeshIndex;
      if (meshNum>=start)
      {
         // we are either from this object, the next object, or a decal
         if (meshNum < start + objects[curObject].numMeshes)
         {
            // this object...
            if (subShapeFirstObject[skipSS]>curObject)
               // haven't reached this subshape yet
               return true;
            if (skipSS+1==subShapeFirstObject.size() || curObject<subShapeFirstObject[skipSS+1])
               // curObject is on subshape of skip detail...make sure it's after skipDL
               return (meshNum-start<details[skipDL].objectDetailNum);
            // if we get here, then curObject occurs on subShape after skip detail (so keep it)
            return false;
         }
         else
            // advance object, try again
            return checkSkip(meshNum,++curObject,skipDL);
      }
   }

   AssertFatal(0,"TSShape::checkSkip: assertion failed");
   return false;
}

void TSShape::assembleShape()
{
   S32 i,j;

   // get counts...
   S32 numNodes = tsalloc.get32();
   S32 numObjects = tsalloc.get32();
   S32 numDecals = tsalloc.get32();
   S32 numSubShapes = tsalloc.get32();
   S32 numIflMaterials = tsalloc.get32();
   S32 numNodeRots;
   S32 numNodeTrans;
   S32 numNodeUniformScales;
   S32 numNodeAlignedScales;
   S32 numNodeArbitraryScales;
   if (smReadVersion<22)
   {
      numNodeRots = numNodeTrans = tsalloc.get32() - numNodes;
      numNodeUniformScales = numNodeAlignedScales = numNodeArbitraryScales = 0;
   }
   else
   {
      numNodeRots = tsalloc.get32();
      numNodeTrans = tsalloc.get32();
      numNodeUniformScales = tsalloc.get32();
      numNodeAlignedScales = tsalloc.get32();
      numNodeArbitraryScales = tsalloc.get32();
   }
   S32 numGroundFrames = 0;
   if (smReadVersion>23)
      numGroundFrames = tsalloc.get32();
   S32 numObjectStates = tsalloc.get32();
   S32 numDecalStates = tsalloc.get32();
   S32 numTriggers = tsalloc.get32();
   S32 numDetails = tsalloc.get32();
   S32 numMeshes = tsalloc.get32();
   S32 numSkins = 0;
   if (smReadVersion<23)
      // in later versions, skins are kept with other meshes
      numSkins = tsalloc.get32();
   S32 numNames = tsalloc.get32();

   // Note that we are recalculating these values later on for safety.
   mSmallestVisibleSize = (F32)tsalloc.get32();
   mSmallestVisibleDL   = tsalloc.get32();
   
   tsalloc.checkGuard();

   // get bounds...
   tsalloc.get32((S32*)&mRadius,1);
   tsalloc.get32((S32*)&tubeRadius,1);
   tsalloc.get32((S32*)&center,3);
   tsalloc.get32((S32*)&mBounds,6);

   tsalloc.checkGuard();

   // copy various vectors...
   S32 * ptr32 = tsalloc.copyToShape32(numNodes*5);
   nodes.set(ptr32,numNodes);

   tsalloc.checkGuard();

   ptr32 = tsalloc.copyToShape32(numObjects*6,true);
   if (!ptr32)
      ptr32 = tsalloc.allocShape32(numSkins*6); // pre v23 shapes store skins and meshes separately...no longer
   else
      tsalloc.allocShape32(numSkins*6);
   objects.set(ptr32,numObjects);

   tsalloc.checkGuard();

   // DEPRECATED decals
   ptr32 = tsalloc.getPointer32(numDecals*5);

   tsalloc.checkGuard();

   // DEPRECATED ifl materials
   ptr32 = tsalloc.copyToShape32(numIflMaterials*5);

   tsalloc.checkGuard();

   ptr32 = tsalloc.copyToShape32(numSubShapes,true);
   subShapeFirstNode.set(ptr32,numSubShapes);
   ptr32 = tsalloc.copyToShape32(numSubShapes,true);
   subShapeFirstObject.set(ptr32,numSubShapes);
   // DEPRECATED subShapeFirstDecal
   ptr32 = tsalloc.getPointer32(numSubShapes);

   tsalloc.checkGuard();

   ptr32 = tsalloc.copyToShape32(numSubShapes);
   subShapeNumNodes.set(ptr32,numSubShapes);
   ptr32 = tsalloc.copyToShape32(numSubShapes);
   subShapeNumObjects.set(ptr32,numSubShapes);
   // DEPRECATED subShapeNumDecals
   ptr32 = tsalloc.getPointer32(numSubShapes);

   tsalloc.checkGuard();

   ptr32 = tsalloc.allocShape32(numSubShapes);
   subShapeFirstTranslucentObject.set(ptr32,numSubShapes);

   // get default translation and rotation
   S16 * ptr16 = tsalloc.allocShape16(0);
   for (i=0;i<numNodes;i++)
      tsalloc.copyToShape16(4);
   defaultRotations.set(ptr16,numNodes);
   tsalloc.align32();
   ptr32 = tsalloc.allocShape32(0);
   for (i=0;i<numNodes;i++)
   {
      tsalloc.copyToShape32(3);
      tsalloc.copyToShape32(sizeof(Point3F)-12); // handle alignment issues w/ point3f
   }
   defaultTranslations.set(ptr32,numNodes);

   // get any node sequence data stored in shape
   nodeTranslations.setSize(numNodeTrans);
   for (i=0;i<numNodeTrans;i++)
      tsalloc.get32((S32*)&nodeTranslations[i],3);
   nodeRotations.setSize(numNodeRots);
   for (i=0;i<numNodeRots;i++)
      tsalloc.get16((S16*)&nodeRotations[i],4);
   tsalloc.align32();

   tsalloc.checkGuard();

   if (smReadVersion>21)
   {
      // more node sequence data...scale
      nodeUniformScales.setSize(numNodeUniformScales);
      for (i=0;i<numNodeUniformScales;i++)
         tsalloc.get32((S32*)&nodeUniformScales[i],1);
      nodeAlignedScales.setSize(numNodeAlignedScales);
      for (i=0;i<numNodeAlignedScales;i++)
         tsalloc.get32((S32*)&nodeAlignedScales[i],3);
      nodeArbitraryScaleFactors.setSize(numNodeArbitraryScales);
      for (i=0;i<numNodeArbitraryScales;i++)
         tsalloc.get32((S32*)&nodeArbitraryScaleFactors[i],3);
      nodeArbitraryScaleRots.setSize(numNodeArbitraryScales);
      for (i=0;i<numNodeArbitraryScales;i++)
         tsalloc.get16((S16*)&nodeArbitraryScaleRots[i],4);
      tsalloc.align32();

      tsalloc.checkGuard();
   }

   // old shapes need ground transforms moved to ground arrays...but only do it once
   if (smReadVersion<22 && tsalloc.allocShape32(0))
   {
      for (i=0; i<sequences.size(); i++)
      {
         // move ground transform data to ground vectors
         Sequence & seq = sequences[i];
         S32 oldSz = groundTranslations.size();
         groundTranslations.setSize(oldSz+seq.numGroundFrames);
         groundRotations.setSize(oldSz+seq.numGroundFrames);
         for (S32 groundFrm =0; groundFrm<seq.numGroundFrames; groundFrm++)
         {
            groundTranslations[groundFrm +oldSz] = nodeTranslations[seq.firstGroundFrame+ groundFrm -numNodes];
            groundRotations[groundFrm +oldSz] = nodeRotations[seq.firstGroundFrame+ groundFrm -numNodes];
         }
         seq.firstGroundFrame = oldSz;
         seq.baseTranslation -= numNodes;
         seq.baseRotation -= numNodes;
         seq.baseScale = 0; // not used on older shapes...but keep it clean
      }
   }

   // version 22 & 23 shapes accidentally had no ground transforms, and ground for
   // earlier shapes is handled just above, so...
   if (smReadVersion>23)
   {
      groundTranslations.setSize(numGroundFrames);
      for (i=0;i<numGroundFrames;i++)
         tsalloc.get32((S32*)&groundTranslations[i],3);
      groundRotations.setSize(numGroundFrames);
      for (i=0;i<numGroundFrames;i++)
         tsalloc.get16((S16*)&groundRotations[i],4);
      tsalloc.align32();

      tsalloc.checkGuard();
   }

   // object states
   ptr32 = tsalloc.copyToShape32(numObjectStates*3);
   objectStates.set(ptr32,numObjectStates);
   tsalloc.allocShape32(numSkins*3); // provide buffer after objectStates for older shapes

   tsalloc.checkGuard();

   // DEPRECATED decal states
   ptr32 = tsalloc.getPointer32(numDecalStates);

   tsalloc.checkGuard();

   // frame triggers
   ptr32 = tsalloc.getPointer32(numTriggers*2);
   triggers.setSize(numTriggers);
   dMemcpy(triggers.address(),ptr32,sizeof(S32)*numTriggers*2);

   tsalloc.checkGuard();

   // details
   if ( smReadVersion >= 26 )
   {
      U32 alignedSize32 = sizeof( Detail ) / 4;
      ptr32 = tsalloc.copyToShape32( numDetails * alignedSize32, true );
      details.set( ptr32, numDetails );
   }
   else
   {
      // Previous to version 26 the Detail structure
      // only contained the first 7 values...
      //
      //    struct Detail
      //    {
      //       S32 nameIndex;
      //       S32 subShapeNum;
      //       S32 objectDetailNum;
      //       F32 size;
      //       F32 averageError;
      //       F32 maxError;
      //       S32 polyCount;
      //    };
      //
      // In the code below we're reading just these 7 values and
      // copying them to the new larger structure.

      ptr32 = tsalloc.copyToShape32( numDetails * 7, true );

      details.setSize( numDetails );
      for ( U32 detID = 0; detID < details.size(); detID++, ptr32 += 7 )
      {
         Detail *det = &(details[detID]);

         // Clear the struct... we don't want to leave 
         // garbage in the parts that are unfilled.
         U32 alignedSize32 = sizeof( Detail );
         dMemset( det, 0, alignedSize32 );

         // Copy the old struct values over.
         dMemcpy( det, ptr32, 7 * 4 );

         // If this is an autobillboard then we need to
         // fill in the new part of the struct.
         if ( det->subShapeNum >= 0 )
            continue; 

         S32 lastDetailOpts = det->objectDetailNum;
         det->bbEquatorSteps = lastDetailOpts & 0x7F; // bits 0..6
         det->bbPolarSteps = (lastDetailOpts >> 7) & 0x3F; // bits 7..12
         det->bbPolarAngle = 0.5f * M_PI_F * (1.0f/64.0f) * (F32) (( lastDetailOpts >>13 ) & 0x3F); // bits 13..18
         det->bbDetailLevel = (lastDetailOpts >> 19) & 0x0F;  // 19..22
         det->bbDimension = (lastDetailOpts >> 23) & 0xFF; // 23..30
         det->bbIncludePoles = (lastDetailOpts & 0x80000000)!=0; // bit 31
      }
   }

   // Some DTS exporters (MAX - I'm looking at you!) write garbage into the
   // averageError and maxError values which stops LOD from working correctly.
   // Try to detect and fix it
   for ( U32 erID = 0; erID < details.size(); erID++ )
   {
      if ( ( details[erID].averageError == 0 ) || ( details[erID].averageError > 10000 ) ||
           ( details[erID].maxError == 0 ) || ( details[erID].maxError > 10000 ) )
      {
         details[erID].averageError = details[erID].maxError = -1.0f;
      }
   }

   // We don't trust the value of mSmallestVisibleDL loaded from the dts
   // since some legacy meshes seem to have the wrong value. Recalculate it
   // now that we have the details loaded.
   updateSmallestVisibleDL();

   S32 skipDL = getMin(mSmallestVisibleDL,smNumSkipLoadDetails);
   if (skipDL < 0)
      skipDL = 0;


   tsalloc.checkGuard();

   if (TSShape::smReadVersion >= 27)
   {
      // Vertex format is set here
      S8 *vboData = NULL;
      S32 vboSize = 0;

      mBasicVertexFormat.readAlloc(&tsalloc);
      mVertexFormat.clear();
      mBasicVertexFormat.getFormat(mVertexFormat);
      mVertexSize = mVertexFormat.getSizeInBytes();

      AssertFatal(mVertexSize == mBasicVertexFormat.vertexSize, "vertex size mismatch");

      vboSize = tsalloc.get32();
      vboData = tsalloc.getPointer8(vboSize);

      if (tsalloc.getBuffer() && vboSize > 0)
      {
         U8 *vertexData = (U8*)dMalloc_aligned(vboSize, 16);
         dMemcpy(vertexData, vboData, vboSize);
         mShapeVertexData.set(vertexData, vboSize);
         mShapeVertexData.vertexDataReady = true;
      }
      else
      {
         mShapeVertexData.set(NULL, 0);
      }
   }
   else
   {
      mShapeVertexData.set(NULL, 0);
   }

   // about to read in the meshes...first must allocate some scratch space
   S32 scratchSize = getMax(numSkins,numMeshes);
   TSMesh::smVertsList.setSize(scratchSize);
   TSMesh::smTVertsList.setSize(scratchSize);

   if ( smReadVersion >= 26 )
   {
      TSMesh::smTVerts2List.setSize(scratchSize);
      TSMesh::smColorsList.setSize(scratchSize);
   }

   TSMesh::smNormsList.setSize(scratchSize);
   TSMesh::smEncodedNormsList.setSize(scratchSize);
   TSMesh::smDataCopied.setSize(scratchSize);
   TSSkinMesh::smInitTransformList.setSize(scratchSize);
   TSSkinMesh::smVertexIndexList.setSize(scratchSize);
   TSSkinMesh::smBoneIndexList.setSize(scratchSize);
   TSSkinMesh::smWeightList.setSize(scratchSize);
   TSSkinMesh::smNodeIndexList.setSize(scratchSize);
   for (i=0; i<numMeshes; i++)
   {
      TSMesh::smVertsList[i]=NULL;
      TSMesh::smTVertsList[i]=NULL;
      
      if ( smReadVersion >= 26 )
      {
         TSMesh::smTVerts2List[i] = NULL;
         TSMesh::smColorsList[i] = NULL;
      }
      
      TSMesh::smNormsList[i]=NULL;
      TSMesh::smEncodedNormsList[i]=NULL;
      TSMesh::smDataCopied[i]=false;
      TSSkinMesh::smInitTransformList[i] = NULL;
      TSSkinMesh::smVertexIndexList[i] = NULL;
      TSSkinMesh::smBoneIndexList[i] = NULL;
      TSSkinMesh::smWeightList[i] = NULL;
      TSSkinMesh::smNodeIndexList[i] = NULL;
   }

   // read in the meshes (sans skins)...straightforward read one at a time
   TSMesh **ptrmesh = (TSMesh**)tsalloc.allocShape32((numMeshes + numSkins*numDetails) * (sizeof(TSMesh*) / 4));
   S32 curObject = 0; // for tracking skipped meshes
   for (i=0; i<numMeshes; i++)
   {
      bool skip = checkSkip(i,curObject,skipDL); // skip this mesh?
      S32 meshType = tsalloc.get32();
      if (meshType == TSMesh::DecalMeshType)
         // decal mesh deprecated
         skip = true;
      TSMesh * mesh = TSMesh::assembleMesh(meshType,skip);
      if (ptrmesh)
      {
         ptrmesh[i] = skip ?  0 : mesh;
      }

      // fill in location of verts, tverts, and normals for detail levels
      if (mesh && meshType!=TSMesh::DecalMeshType)
      {
         TSMesh::smVertsList[i]  = mesh->mVerts.address();
         TSMesh::smTVertsList[i] = mesh->mTverts.address();
         if (smReadVersion >= 26)
         {
            TSMesh::smTVerts2List[i] = mesh->mTverts2.address();
            TSMesh::smColorsList[i] = mesh->mColors.address();
         }
         TSMesh::smNormsList[i]  = mesh->mNorms.address();
         TSMesh::smEncodedNormsList[i] = mesh->mEncodedNorms.address();
         TSMesh::smDataCopied[i] = !skip; // as long as we didn't skip this mesh, the data should be in shape now
         if (meshType==TSMesh::SkinMeshType)
         {
            TSSkinMesh * skin = (TSSkinMesh*)mesh;
            TSMesh::smVertsList[i]  = skin->batchData.initialVerts.address();
            TSMesh::smNormsList[i]  = skin->batchData.initialNorms.address();
            TSSkinMesh::smInitTransformList[i] = skin->batchData.initialTransforms.address();
            TSSkinMesh::smVertexIndexList[i] = skin->vertexIndex.address();
            TSSkinMesh::smBoneIndexList[i] = skin->boneIndex.address();
            TSSkinMesh::smWeightList[i] = skin->weight.address();
            TSSkinMesh::smNodeIndexList[i] = skin->batchData.nodeIndex.address();
         }
      }
   }
   meshes.set(ptrmesh, numMeshes);

   tsalloc.checkGuard();

   // names
   char * nameBufferStart = (char*)tsalloc.getPointer8(0);
   char * name = nameBufferStart;
   S32 nameBufferSize = 0;
   names.setSize(numNames);
   for (i=0; i<numNames; i++)
   {
      for (j=0; name[j]; j++)
         ;

      names[i] = name;
      nameBufferSize += j + 1;
      name += j + 1;
   }

   tsalloc.getPointer8(nameBufferSize);
   tsalloc.align32();

   tsalloc.checkGuard();

   if (smReadVersion<23)
   {
      // get detail information about skins...
      S32 * detFirstSkin = tsalloc.getPointer32(numDetails);
      S32 * detailNumSkins = tsalloc.getPointer32(numDetails);

      tsalloc.checkGuard();

      // about to read in skins...clear out scratch space...
      if (numSkins)
      {
         TSSkinMesh::smInitTransformList.setSize(numSkins);
         TSSkinMesh::smVertexIndexList.setSize(numSkins);
         TSSkinMesh::smBoneIndexList.setSize(numSkins);
         TSSkinMesh::smWeightList.setSize(numSkins);
         TSSkinMesh::smNodeIndexList.setSize(numSkins);
      }
      for (i=0; i<numSkins; i++)
      {
         TSMesh::smVertsList[i]=NULL;
         TSMesh::smTVertsList[i]=NULL;
         TSMesh::smNormsList[i]=NULL;
         TSMesh::smEncodedNormsList[i]=NULL;
         TSMesh::smDataCopied[i]=false;
         TSSkinMesh::smInitTransformList[i] = NULL;
         TSSkinMesh::smVertexIndexList[i] = NULL;
         TSSkinMesh::smBoneIndexList[i] = NULL;
         TSSkinMesh::smWeightList[i] = NULL;
         TSSkinMesh::smNodeIndexList[i] = NULL;
      }

      // skins
      ptr32 = tsalloc.allocShape32(numSkins);
      for (i=0; i<numSkins; i++)
      {
         bool skip = i<detFirstSkin[skipDL];
         TSSkinMesh * skin = (TSSkinMesh*)TSMesh::assembleMesh(TSMesh::SkinMeshType,skip);
         if (meshes.address())
         {
            // add pointer to skin in shapes list of meshes
            // we reserved room for this above...
            meshes.set(meshes.address(),meshes.size()+1);
            meshes[meshes.size()-1] = skip ? NULL : skin;
         }

         // fill in location of verts, tverts, and normals for shared detail levels
         if (skin)
         {
            TSMesh::smVertsList[i]  = skin->batchData.initialVerts.address();
            TSMesh::smTVertsList[i] = skin->mTverts.address();
            TSMesh::smNormsList[i]  = skin->batchData.initialNorms.address();
            TSMesh::smEncodedNormsList[i]  = skin->mEncodedNorms.address();
            TSMesh::smDataCopied[i] = !skip; // as long as we didn't skip this mesh, the data should be in shape now
            TSSkinMesh::smInitTransformList[i] = skin->batchData.initialTransforms.address();
            TSSkinMesh::smVertexIndexList[i] = skin->vertexIndex.address();
            TSSkinMesh::smBoneIndexList[i] = skin->boneIndex.address();
            TSSkinMesh::smWeightList[i] = skin->weight.address();
            TSSkinMesh::smNodeIndexList[i] = skin->batchData.nodeIndex.address();
         }
      }

      tsalloc.checkGuard();

      // we now have skins in mesh list...add skin objects to object list and patch things up
      fixupOldSkins(numMeshes,numSkins,numDetails,detFirstSkin,detailNumSkins);
   }

   // allocate storage space for some arrays (filled in during Shape::init)...
   ptr32 = tsalloc.allocShape32(numDetails);
   alphaIn.set(ptr32,numDetails);
   ptr32 = tsalloc.allocShape32(numDetails);
   alphaOut.set(ptr32,numDetails);
}

void TSShape::disassembleShape()
{
   S32 i;

   // set counts...
   S32 numNodes = tsalloc.set32(nodes.size());
   S32 numObjects = tsalloc.set32(objects.size());
   tsalloc.set32(0); // DEPRECATED decals
   S32 numSubShapes = tsalloc.set32(subShapeFirstNode.size());
   tsalloc.set32(0); // DEPRECATED ifl materials
   S32 numNodeRotations = tsalloc.set32(nodeRotations.size());
   S32 numNodeTranslations = tsalloc.set32(nodeTranslations.size());
   S32 numNodeUniformScales = tsalloc.set32(nodeUniformScales.size());
   S32 numNodeAlignedScales = tsalloc.set32(nodeAlignedScales.size());
   S32 numNodeArbitraryScales = tsalloc.set32(nodeArbitraryScaleFactors.size());
   S32 numGroundFrames = tsalloc.set32(groundTranslations.size());
   S32 numObjectStates = tsalloc.set32(objectStates.size());
   tsalloc.set32(0); // DEPRECATED decals
   S32 numTriggers = tsalloc.set32(triggers.size());
   S32 numDetails = tsalloc.set32(details.size());
   S32 numMeshes = tsalloc.set32(meshes.size());
   S32 numNames = tsalloc.set32(names.size());
   tsalloc.set32((S32)mSmallestVisibleSize);
   tsalloc.set32(mSmallestVisibleDL);

   tsalloc.setGuard();

   // get bounds...
   tsalloc.copyToBuffer32((S32*)&mRadius,1);
   tsalloc.copyToBuffer32((S32*)&tubeRadius,1);
   tsalloc.copyToBuffer32((S32*)&center,3);
   tsalloc.copyToBuffer32((S32*)&mBounds,6);

   tsalloc.setGuard();

   // copy various vectors...
   tsalloc.copyToBuffer32((S32*)nodes.address(),numNodes*5);
   tsalloc.setGuard();
   tsalloc.copyToBuffer32((S32*)objects.address(),numObjects*6);
   tsalloc.setGuard();
   // DEPRECATED: no copy decals
   tsalloc.setGuard();
   tsalloc.copyToBuffer32(0,0); // DEPRECATED: ifl materials!
   tsalloc.setGuard();
   tsalloc.copyToBuffer32((S32*)subShapeFirstNode.address(),numSubShapes);
   tsalloc.copyToBuffer32((S32*)subShapeFirstObject.address(),numSubShapes);
   tsalloc.copyToBuffer32(0, numSubShapes); // DEPRECATED: no copy subShapeFirstDecal
   tsalloc.setGuard();
   tsalloc.copyToBuffer32((S32*)subShapeNumNodes.address(),numSubShapes);
   tsalloc.copyToBuffer32((S32*)subShapeNumObjects.address(),numSubShapes);
   tsalloc.copyToBuffer32(0, numSubShapes); // DEPRECATED: no copy subShapeNumDecals
   tsalloc.setGuard();

   // default transforms...
   tsalloc.copyToBuffer16((S16*)defaultRotations.address(),numNodes*4);
   tsalloc.copyToBuffer32((S32*)defaultTranslations.address(),numNodes*3);

   // animated transforms...
   tsalloc.copyToBuffer16((S16*)nodeRotations.address(),numNodeRotations*4);
   tsalloc.copyToBuffer32((S32*)nodeTranslations.address(),numNodeTranslations*3);

   tsalloc.setGuard();

   // ...with scale
   tsalloc.copyToBuffer32((S32*)nodeUniformScales.address(),numNodeUniformScales);
   tsalloc.copyToBuffer32((S32*)nodeAlignedScales.address(),numNodeAlignedScales*3);
   tsalloc.copyToBuffer32((S32*)nodeArbitraryScaleFactors.address(),numNodeArbitraryScales*3);
   tsalloc.copyToBuffer16((S16*)nodeArbitraryScaleRots.address(),numNodeArbitraryScales*4);

   tsalloc.setGuard();

   tsalloc.copyToBuffer32((S32*)groundTranslations.address(),3*numGroundFrames);
   tsalloc.copyToBuffer16((S16*)groundRotations.address(),4*numGroundFrames);

   tsalloc.setGuard();

   // object states..
   tsalloc.copyToBuffer32((S32*)objectStates.address(),numObjectStates*3);
   tsalloc.setGuard();

   // decal states...
   // DEPRECATED (numDecalStates = 0)
   tsalloc.setGuard();

   // frame triggers
   tsalloc.copyToBuffer32((S32*)triggers.address(),numTriggers*2);
   tsalloc.setGuard();

   // details
   if (TSShape::smVersion > 25)
   {
      U32 alignedSize32 = sizeof( Detail ) / 4;
      tsalloc.copyToBuffer32((S32*)details.address(),numDetails * alignedSize32 );
   }
   else
   {
      // Legacy details => no explicit autobillboard parameters
      U32 legacyDetailSize32 = 7;   // only store the first 7 4-byte values of each detail
      for ( S32 bbID = 0; bbID < details.size(); bbID++ )
         tsalloc.copyToBuffer32( (S32*)&details[bbID], legacyDetailSize32 );
   }
   tsalloc.setGuard();

   if (TSShape::smVersion >= 27)
   {
      // Vertex format now included with mesh data. Note this doesn't include index data which
      // is constructed directly in the buffer from the meshes

      mBasicVertexFormat.writeAlloc(&tsalloc);

      tsalloc.set32(mShapeVertexData.size);
      tsalloc.copyToBuffer8((S8*)mShapeVertexData.base, mShapeVertexData.size);
   }

   // read in the meshes (sans skins)...
   bool * isMesh = new bool[numMeshes]; // funny business because decals are pretend meshes (legacy issue)
   for (i=0;i<numMeshes;i++)
      isMesh[i]=false;
   for (i=0; i<objects.size(); i++)
   {
      for (S32 j=0; j<objects[i].numMeshes; j++)
         // even if an empty mesh, it's a mesh...
         isMesh[objects[i].startMeshIndex+j]=true;
   }
   for (i=0; i<numMeshes; i++)
   {
      TSMesh * mesh = NULL;
      // decal mesh deprecated
      if (isMesh[i])
         mesh = meshes[i];
      tsalloc.set32( (mesh && mesh->getMeshType() != TSMesh::DecalMeshType) ? mesh->getMeshType() : TSMesh::NullMeshType);
      if (mesh)
         mesh->disassemble();
   }
   delete [] isMesh;
   tsalloc.setGuard();

   // names
   for (i=0; i<numNames; i++)
      tsalloc.copyToBuffer8((S8 *)(names[i].c_str()),names[i].length()+1);

   tsalloc.setGuard();
}

//-------------------------------------------------
// write whole shape
//-------------------------------------------------
/** Determine whether we can write this shape in TSTPRO compatible format */
bool TSShape::canWriteOldFormat() const
{
   // Cannot use old format if using autobillboard details
   for (S32 i = 0; i < details.size(); i++)
   {
      if (details[i].subShapeNum < 0)
         return false;
   }

   for (S32 i = 0; i < meshes.size(); i++)
   {
      if (!meshes[i])
         continue;

      // Cannot use old format if using the new functionality (COLORs, 2nd UV set)
      if (meshes[i]->mTverts2.size() || meshes[i]->mColors.size())
         return false;

      // Cannot use old format if any primitive has too many triangles
      // (ie. cannot fit in a S16)
      for (S32 j = 0; j < meshes[i]->mPrimitives.size(); j++)
      {
         if ((meshes[i]->mPrimitives[j].start +
               meshes[i]->mPrimitives[j].numElements) >= (1 << 15))
         {
            return false;
         }
      }
   }

   return true;
}

void TSShape::write(Stream * s, bool saveOldFormat)
{
   S32 currentVersion = smVersion;
   if (saveOldFormat)
      smVersion = 24;

   // write version
   s->write(smVersion | (mExporterVersion<<16));

   tsalloc.setWrite();
   disassembleShape();

   S32     * buffer32 = tsalloc.getBuffer32();
   S16     * buffer16 = tsalloc.getBuffer16();
   S8      * buffer8  = tsalloc.getBuffer8();

   S32 size32 = tsalloc.getBufferSize32();
   S32 size16 = tsalloc.getBufferSize16();
   S32 size8  = tsalloc.getBufferSize8();

   // convert sizes to dwords...
   if (size16 & 1)
      size16 += 2;
   size16 >>= 1;
   if (size8 & 3)
      size8 += 4;
   size8 >>= 2;

   S32 sizeMemBuffer, start16, start8;
   sizeMemBuffer = size32 + size16 + size8;
   start16 = size32;
   start8 = start16+size16;

   // in dwords -- write will properly endian-flip.
   s->write(sizeMemBuffer);
   s->write(start16);
   s->write(start8);

	// endian-flip the entire write buffers.
   fixEndian(buffer32,buffer16,buffer8,size32,size16,size8);

   // now write buffers
   s->write(size32*4,buffer32);
   s->write(size16*4,buffer16);
   s->write(size8 *4,buffer8);

   // write sequences - write will properly endian-flip.
   s->write(sequences.size());
   for (S32 i=0; i<sequences.size(); i++)
      sequences[i].write(s);

   // write material list - write will properly endian-flip.
   materialList->write(*s);

   delete [] buffer32;
   delete [] buffer16;
   delete [] buffer8;

   smVersion = currentVersion;
}

//-------------------------------------------------
// read whole shape
//-------------------------------------------------

bool TSShape::read(Stream * s)
{
   // read version - read handles endian-flip
   s->read(&smReadVersion);
   mExporterVersion = smReadVersion >> 16;
   smReadVersion &= 0xFF;
   if (smReadVersion>smVersion)
   {
      // error -- don't support future versions yet :>
      Con::errorf(ConsoleLogEntry::General,
                  "Error: attempt to load a version %i dts-shape, can currently only load version %i and before.",
                   smReadVersion,smVersion);
      return false;
   }
   mReadVersion = smReadVersion;

   S32 * memBuffer32;
   S16 * memBuffer16;
   S8 * memBuffer8;
   S32 count32, count16, count8;
   if (mReadVersion<19)
   {
      Con::errorf("... Shape with old version.");
      return false;
   }
   else
   {
      S32 i;
      U32 sizeMemBuffer, startU16, startU8;

      // in dwords. - read handles endian-flip
      s->read(&sizeMemBuffer);
      s->read(&startU16);
      s->read(&startU8);

      if (s->getStatus()!=Stream::Ok)
      {
         Con::errorf(ConsoleLogEntry::General, "Error: bad shape file.");
         return false;
      }

      S32 * tmp = new S32[sizeMemBuffer];
      s->read(sizeof(S32)*sizeMemBuffer,(U8*)tmp);
      memBuffer32 = tmp;
      memBuffer16 = (S16*)(tmp+startU16);
      memBuffer8  = (S8*)(tmp+startU8);

      count32 = startU16;
      count16 = startU8-startU16;
      count8  = sizeMemBuffer-startU8;

      // read sequences
      S32 numSequences;
      s->read(&numSequences);
      sequences.setSize(numSequences);
      for (i=0; i<numSequences; i++)
      {
         sequences[i].read(s);

         // Store initial (empty) source data
         sequences[i].sourceData.total = sequences[i].numKeyframes;
         sequences[i].sourceData.end = sequences[i].sourceData.total - 1;
      }

      // read material list
      delete materialList; // just in case...
      materialList = new TSMaterialList;
      materialList->read(*s);
   }

	// since we read in the buffers, we need to endian-flip their entire contents...
   fixEndian(memBuffer32,memBuffer16,memBuffer8,count32,count16,count8);

   tsalloc.setRead(memBuffer32,memBuffer16,memBuffer8,true);
   assembleShape(); // determine size of buffer needed
   mShapeDataSize = tsalloc.getSize();
   tsalloc.doAlloc();
   mShapeData = tsalloc.getBuffer();
   tsalloc.setRead(memBuffer32,memBuffer16,memBuffer8,false);
   assembleShape(); // copy to buffer
   AssertFatal(tsalloc.getSize()==mShapeDataSize,"TSShape::read: shape data buffer size mis-calculated");

   delete [] memBuffer32;

   if (smInitOnRead)
   {
      init();
   }

   return true;
}

void TSShape::createEmptyShape()
{
   nodes.set(dMalloc(1 * sizeof(Node)), 1);
      nodes[0].nameIndex = 1;
      nodes[0].parentIndex = -1;
      nodes[0].firstObject = 0;
      nodes[0].firstChild = -1;
      nodes[0].nextSibling = -1;

   objects.set(dMalloc(1 * sizeof(Object)), 1);
      objects[0].nameIndex = 2;
      objects[0].numMeshes = 1;
      objects[0].startMeshIndex = 0;
      objects[0].nodeIndex = 0;
      objects[0].nextSibling = -1;
      objects[0].firstDecal = -1;

   objectStates.set(dMalloc(1 * sizeof(ObjectState)), 1);
      objectStates[0].vis = 1;
      objectStates[0].frameIndex = 0;
      objectStates[0].matFrameIndex = 0;

   subShapeFirstNode.set(dMalloc(1 * sizeof(S32)), 1);
      subShapeFirstNode[0] = 0;

   subShapeFirstObject.set(dMalloc(1 * sizeof(S32)), 1);
      subShapeFirstObject[0] = 0;

   detailFirstSkin.set(NULL, 0);

   subShapeNumNodes.set(dMalloc(1 * sizeof(S32)), 1);
      subShapeNumNodes[0] = 1;

   subShapeNumObjects.set(dMalloc(1 * sizeof(S32)), 1);
      subShapeNumObjects[0] = 1;

   details.set(dMalloc(1 * sizeof(Detail)), 1);
      details[0].nameIndex = 0;
      details[0].subShapeNum = 0;
      details[0].objectDetailNum = 0;
      details[0].size = 2.0f;
      details[0].averageError = -1.0f;
      details[0].maxError = -1.0f;
      details[0].polyCount = 0;

   defaultRotations.set(dMalloc(1 * sizeof(Quat16)), 1);
      defaultRotations[0].x = 0.0f;
      defaultRotations[0].y = 0.0f;
      defaultRotations[0].z = 0.0f;
      defaultRotations[0].w = 0.0f;

   defaultTranslations.set(dMalloc(1 * sizeof(Point3F)), 1);
      defaultTranslations[0].set(0.0f, 0.0f, 0.0f);

   subShapeFirstTranslucentObject.set(dMalloc(1 * sizeof(S32)), 1);
      subShapeFirstTranslucentObject[0] = 1;

   alphaIn.set(dMalloc(1 * sizeof(F32)), 1);
      alphaIn[0] = 0;

   alphaOut.set(dMalloc(1 * sizeof(F32)), 1);
      alphaOut[0] = -1;

   sequences.set(NULL, 0);
   nodeRotations.set(NULL, 0);
   nodeTranslations.set(NULL, 0);
   nodeUniformScales.set(NULL, 0);
   nodeAlignedScales.set(NULL, 0);
   nodeArbitraryScaleRots.set(NULL, 0);
   nodeArbitraryScaleFactors.set(NULL, 0);
   groundRotations.set(NULL, 0);
   groundTranslations.set(NULL, 0);
   triggers.set(NULL, 0);
   billboardDetails.set(NULL, 0);

   names.setSize(3);
      names[0] = StringTable->insert("Detail2");
      names[1] = StringTable->insert("Mesh2");
      names[2] = StringTable->insert("Mesh");

   mRadius = 0.866025f;
   tubeRadius = 0.707107f;
   center.set(0.0f, 0.5f, 0.0f);
   mBounds.minExtents.set(-0.5f, 0.0f, -0.5f);
   mBounds.maxExtents.set(0.5f, 1.0f, 0.5f);

   mExporterVersion = 124;
   mSmallestVisibleSize = 2;
   mSmallestVisibleDL = 0;
   mReadVersion = 24;
   mFlags = 0;
   mSequencesConstructed = 0;

   mUseDetailFromScreenError = false;

   mDetailLevelLookup.setSize( 1 );
   mDetailLevelLookup[0].set( -1, 0 );

   // Init the collision accelerator array.  Note that we don't compute the
   //  accelerators until the app requests them
   detailCollisionAccelerators.setSize(details.size());
   for (U32 i = 0; i < detailCollisionAccelerators.size(); i++)
      detailCollisionAccelerators[i] = NULL;
}

void TSShape::fixEndian(S32 * buff32, S16 * buff16, S8 *, S32 count32, S32 count16, S32)
{
	// if endian-ness isn't the same, need to flip the buffer contents.
   if (0x12345678!=convertLEndianToHost(0x12345678))
   {
      for (S32 i=0; i<count32; i++)
         buff32[i]=convertLEndianToHost(buff32[i]);
      for (S32 i=0; i<count16*2; i++)
         buff16[i]=convertLEndianToHost(buff16[i]);
   }
}

template<> void *Resource<TSShape>::create(const Torque::Path &path)
{
   // Execute the shape script if it exists
   Torque::Path scriptPath(path);
   scriptPath.setExtension(TORQUE_SCRIPT_EXTENSION);

   // Don't execute the script if we're already doing so!
   StringTableEntry currentScript = Platform::stripBasePath(CodeBlock::getCurrentCodeBlockFullPath());
   if (!scriptPath.getFullPath().equal(currentScript))
   {
      Torque::Path scriptPathDSO(scriptPath);
      scriptPathDSO.setExtension(TORQUE_SCRIPT_EXTENSION ".dso");

      if (Torque::FS::IsFile(scriptPathDSO) || Torque::FS::IsFile(scriptPath))
      {
         String evalCmd = "exec(\"" + scriptPath + "\");";

         String instantGroup = Con::getVariable("InstantGroup");
         Con::setIntVariable("InstantGroup", RootGroupId);
         Con::evaluate((const char*)evalCmd.c_str(), false, scriptPath.getFullPath());
         Con::setVariable("InstantGroup", instantGroup.c_str());
      }
   }

   // Attempt to load the shape
   TSShape * ret = 0;
   bool readSuccess = false;
   const String extension = path.getExtension();

   if ( extension.equal( "dts", String::NoCase ) )
   {
      FileStream stream;
      stream.open( path.getFullPath(), Torque::FS::File::Read );
      if ( stream.getStatus() != Stream::Ok )
      {
         Con::errorf( "Resource<TSShape>::create - Could not open '%s'", path.getFullPath().c_str() );
         return NULL;
      }

      ret = new TSShape;
      readSuccess = ret->read(&stream);
   }
   else if ( extension.equal( "dae", String::NoCase ) || extension.equal( "kmz", String::NoCase ) )
   {
#ifdef TORQUE_COLLADA
      // Attempt to load the DAE file
      ret = loadColladaShape(path);
      readSuccess = (ret != NULL);
#else
      // No COLLADA support => attempt to load the cached DTS file instead
      Torque::Path cachedPath = path;
      cachedPath.setExtension("cached.dts");
       
      FileStream stream;
      stream.open( cachedPath.getFullPath(), Torque::FS::File::Read );
      if ( stream.getStatus() != Stream::Ok )
      {
         Con::errorf( "Resource<TSShape>::create - Could not open '%s'", cachedPath.getFullPath().c_str() );
         return NULL;
      }
      ret = new TSShape;
      readSuccess = ret->read(&stream);
#endif
   }
   else
   {
      //Con::errorf( "Resource<TSShape>::create - '%s' has an unknown file format", path.getFullPath().c_str() );
      //delete ret;
      //return NULL;

      // andrewmac: Open Asset Import Library
#ifdef TORQUE_ASSIMP
      ret = assimpLoadShape(path);
      readSuccess = (ret != NULL);
#endif

      // andrewmac : I could have used another conditional macro but I think this is suffice:
      if (!readSuccess)
      {
         Con::errorf("Resource<TSShape>::create - '%s' has an unknown file format", path.getFullPath().c_str());
         delete ret;
         return NULL;
      }
   }

   if( !readSuccess )
   {
      Con::errorf( "Resource<TSShape>::create - Error reading '%s'", path.getFullPath().c_str() );
      delete ret;
      ret = NULL;
   }

   return ret;
}

template<> ResourceBase::Signature  Resource<TSShape>::signature()
{
   return MakeFourCC('t','s','s','h');
}

TSShape::ConvexHullAccelerator* TSShape::getAccelerator(S32 dl)
{
   AssertFatal(dl < details.size(), "Error, bad detail level!");
   if (dl == -1)
      return NULL;

   AssertFatal( detailCollisionAccelerators.size() == details.size(), 
      "TSShape::getAccelerator() - mismatched array sizes!" );

   if (detailCollisionAccelerators[dl] == NULL)
      computeAccelerator(dl);

   AssertFatal(detailCollisionAccelerators[dl] != NULL, "This should be non-null after computing it!");
   return detailCollisionAccelerators[dl];
}


void TSShape::computeAccelerator(S32 dl)
{
   AssertFatal(dl < details.size(), "Error, bad detail level!");

   // Have we already computed this?
   if (detailCollisionAccelerators[dl] != NULL)
      return;

   // Create a bogus features list...
   ConvexFeature cf;
   MatrixF mat(true);
   Point3F n(0, 0, 1);

   const TSDetail* detail = &details[dl];
   S32 ss = detail->subShapeNum;
   S32 od = detail->objectDetailNum;

   S32 start = subShapeFirstObject[ss];
   S32 end   = subShapeNumObjects[ss] + start;
   if (start < end)
   {
      // run through objects and collide
      // DMMNOTE: This assumes that the transform of the collision hulls is
      //  identity...
      U32 surfaceKey = 0;
      for (S32 i = start; i < end; i++)
      {
         const TSObject* obj = &objects[i];

         if (obj->numMeshes && od < obj->numMeshes) {
            TSMesh* mesh = meshes[obj->startMeshIndex + od];
            if (mesh)
               mesh->getFeatures(0, mat, n, &cf, surfaceKey);
         }
      }
   }

   Vector<Point3F> fixedVerts;
   VECTOR_SET_ASSOCIATION(fixedVerts);
   S32 i;
   for (i = 0; i < cf.mVertexList.size(); i++) {
      S32 j;
      bool found = false;
      for (j = 0; j < cf.mFaceList.size(); j++) {
         if (cf.mFaceList[j].vertex[0] == i ||
             cf.mFaceList[j].vertex[1] == i ||
             cf.mFaceList[j].vertex[2] == i) {
            found = true;
            break;
         }
      }
      if (!found)
         continue;

      found = false;
      for (j = 0; j < fixedVerts.size(); j++) {
         if (fixedVerts[j] == cf.mVertexList[i]) {
            found = true;
            break;
         }
      }
      if (found == true) {
         // Ok, need to replace any references to vertex i in the facelists with
         //  a reference to vertex j in the fixed list
         for (S32 k = 0; k < cf.mFaceList.size(); k++) {
            for (S32 l = 0; l < 3; l++) {
               if (cf.mFaceList[k].vertex[l] == i)
                  cf.mFaceList[k].vertex[l] = j;
            }
         }
      } else {
         for (S32 k = 0; k < cf.mFaceList.size(); k++) {
            for (S32 l = 0; l < 3; l++) {
               if (cf.mFaceList[k].vertex[l] == i)
                  cf.mFaceList[k].vertex[l] = fixedVerts.size();
            }
         }
         fixedVerts.push_back(cf.mVertexList[i]);
      }
   }
   cf.mVertexList.setSize(0);
   cf.mVertexList = fixedVerts;

   // Ok, so now we have a vertex list.  Lets copy that out...
   ConvexHullAccelerator* accel = new ConvexHullAccelerator;
   detailCollisionAccelerators[dl] = accel;
   accel->numVerts    = cf.mVertexList.size();
   accel->vertexList  = new Point3F[accel->numVerts];
   dMemcpy(accel->vertexList, cf.mVertexList.address(), sizeof(Point3F) * accel->numVerts);

   accel->normalList = new Point3F[cf.mFaceList.size()];
   for (i = 0; i < cf.mFaceList.size(); i++)
      accel->normalList[i] = cf.mFaceList[i].normal;

   accel->emitStrings = new U8*[accel->numVerts];
   dMemset(accel->emitStrings, 0, sizeof(U8*) * accel->numVerts);

   for (i = 0; i < accel->numVerts; i++) {
      S32 j;

      Vector<U32> faces;
      VECTOR_SET_ASSOCIATION(faces);
      for (j = 0; j < cf.mFaceList.size(); j++) {
         if (cf.mFaceList[j].vertex[0] == i ||
             cf.mFaceList[j].vertex[1] == i ||
             cf.mFaceList[j].vertex[2] == i) {
            faces.push_back(j);
         }
      }
      AssertFatal(faces.size() != 0, "Huh?  Vertex unreferenced by any faces");

      // Insert all faces that didn't make the first cut, but share a plane with
      //  a face that's on the short list.
      for (j = 0; j < cf.mFaceList.size(); j++) {
         bool found = false;
         S32 k;
         for (k = 0; k < faces.size(); k++) {
            if (faces[k] == j)
               found = true;
         }
         if (found)
            continue;

         found = false;
         for (k = 0; k < faces.size(); k++) {
            if (mDot(accel->normalList[faces[k]], accel->normalList[j]) > 0.999) {
               found = true;
               break;
            }
         }
         if (found)
            faces.push_back(j);
      }

      Vector<U32> vertRemaps;
      VECTOR_SET_ASSOCIATION(vertRemaps);
      for (j = 0; j < faces.size(); j++) {
         for (U32 k = 0; k < 3; k++) {
            U32 insert = cf.mFaceList[faces[j]].vertex[k];
            bool found = false;
            for (S32 l = 0; l < vertRemaps.size(); l++) {
               if (insert == vertRemaps[l]) {
                  found = true;
                  break;
               }
            }
            if (!found)
               vertRemaps.push_back(insert);
         }
      }

      Vector<Point2I> edges;
      VECTOR_SET_ASSOCIATION(edges);
      for (j = 0; j < faces.size(); j++) {
         for (U32 k = 0; k < 3; k++) {
            U32 edgeStart = cf.mFaceList[faces[j]].vertex[(k + 0) % 3];
            U32 edgeEnd   = cf.mFaceList[faces[j]].vertex[(k + 1) % 3];

            U32 e0 = getMin(edgeStart, edgeEnd);
            U32 e1 = getMax(edgeStart, edgeEnd);

            bool found = false;
            for (S32 l = 0; l < edges.size(); l++) {
               if (edges[l].x == e0 && edges[l].y == e1) {
                  found = true;
                  break;
               }
            }
            if (!found)
               edges.push_back(Point2I(e0, e1));
         }
      }

      //AssertFatal(vertRemaps.size() < 256 && faces.size() < 256 && edges.size() < 256,
      //            "Error, ran over the shapebase assumptions about convex hulls.");

      U32 emitStringLen = 1 + vertRemaps.size()  +
                          1 + (edges.size() * 2) +
                          1 + (faces.size() * 4);
      accel->emitStrings[i] = new U8[emitStringLen];

      U32 currPos = 0;

      accel->emitStrings[i][currPos++] = vertRemaps.size();
      for (j = 0; j < vertRemaps.size(); j++)
         accel->emitStrings[i][currPos++] = vertRemaps[j];

      accel->emitStrings[i][currPos++] = edges.size();
      for (j = 0; j < edges.size(); j++) {
         S32 l;
         U32 old = edges[j].x;
         bool found = false;
         for (l = 0; l < vertRemaps.size(); l++) {
            if (vertRemaps[l] == old) {
               found = true;
               accel->emitStrings[i][currPos++] = l;
               break;
            }
         }
         AssertFatal(found, "Error, couldn't find the remap!");

         old = edges[j].y;
         found = false;
         for (l = 0; l < vertRemaps.size(); l++) {
            if (vertRemaps[l] == old) {
               found = true;
               accel->emitStrings[i][currPos++] = l;
               break;
            }
         }
         AssertFatal(found, "Error, couldn't find the remap!");
      }

      accel->emitStrings[i][currPos++] = faces.size();
      for (j = 0; j < faces.size(); j++) {
         accel->emitStrings[i][currPos++] = faces[j];
         for (U32 k = 0; k < 3; k++) {
            U32 old = cf.mFaceList[faces[j]].vertex[k];
            bool found = false;
            for (S32 l = 0; l < vertRemaps.size(); l++) {
               if (vertRemaps[l] == old) {
                  found = true;
                  accel->emitStrings[i][currPos++] = l;
                  break;
               }
            }
            AssertFatal(found, "Error, couldn't find the remap!");
         }
      }
      AssertFatal(currPos == emitStringLen, "Error, over/underflowed the emission string!");
   }
}

void TSShape::finalizeEditable()
{
   for (U32 i = 0; i < meshes.size(); i++)
   {
      if (meshes[i])
      {
         meshes[i]->clearEditable();
      }
   }
}