//-----------------------------------------------------------------------
void MeshReadHelper::calculateMeshInfo()
{
mNumVertices = 0;
mSubMeshInfos.resize(0);
if(!mMesh.isNull())
{
size_t numSubMeshes = mMesh->getNumSubMeshes();
mSubMeshInfos.reserve(numSubMeshes + 1);
if(mMesh->sharedVertexData)
mNumVertices += mMesh->sharedVertexData->vertexCount;
for(unsigned short j = 0; j != numSubMeshes; ++j)
{
SubMesh* subMesh = mMesh->getSubMesh(j);
mSubMeshInfos.push_back(SubMeshInfo());
SubMeshInfo& smi = mSubMeshInfos.back();
smi.subMesh = subMesh;
if(subMesh->useSharedVertices)
{
smi.vertexData = mMesh->sharedVertexData;
smi.vertexStartInJoinedList = 0;
}
else
{
smi.vertexData = subMesh->vertexData;
smi.vertexStartInJoinedList = mNumVertices;
mNumVertices += subMesh->vertexData->vertexCount;
}
smi.vertexStart = smi.vertexData->vertexStart;
smi.vertexCount = smi.vertexData->vertexCount;
smi.indexData = subMesh->indexData;
smi.indexStart = smi.indexData->indexStart;
smi.indexCount = smi.indexData->indexCount;
}
}
//
mSubMeshInfos.push_back(SubMeshInfo());
SubMeshInfo& smi = mSubMeshInfos.back();
smi.subMesh = nullptr;
smi.vertexData = nullptr;
smi.vertexStart = 0;
smi.vertexCount = 0;
smi.vertexStartInJoinedList = mNumVertices;
smi.indexData = nullptr;
smi.indexStart = 0;
smi.indexCount = 0;
}
void
OgreMeshReader::readSubMesh(SubMeshStore &subMeshInfo,
VertexElementStore &sharedVertexElements,
bool skelAnim )
{
OSG_OGRE_LOG(("OgreMeshReader::readSubMesh\n"));
subMeshInfo.push_back((SubMeshInfo()));
SubMeshInfo &smInfo = subMeshInfo.back();
smInfo.matName = readString(_is);
smInfo.sharedVertex = readBool (_is);
UInt32 idxCount = readUInt32(_is);
bool idx32Bit = readBool (_is);
OSG_OGRE_LOG(("OgreMeshReader::readSubMesh: matName '%s' sharedVert '%d' "
"idxCount '%d' idx32Bit '%d'\n",
smInfo.matName.c_str(), smInfo.sharedVertex, idxCount, idx32Bit));
smInfo.skelAnim = skelAnim;
smInfo.meshOp = SMO_TRIANGLE_LIST;
if(idx32Bit == true)
{
GeoUInt32PropertyUnrecPtr pi = GeoUInt32Property::create();
pi->resize(idxCount);
_is.read(reinterpret_cast<Char8 *>(&pi->editField().front()),
idxCount * sizeof(UInt32));
smInfo.propIdx = pi;
}
else
{
GeoUInt16PropertyUnrecPtr pi = GeoUInt16Property::create();
pi->resize(idxCount);
_is.read(reinterpret_cast<Char8 *>(&pi->editField().front()),
idxCount * sizeof(UInt16));
smInfo.propIdx = pi;
}
Int16 boneIdxVE = -1;
Int16 boneWeightVE = -1;
bool stop = false;
while(_is)
{
readChunkHeader(_is);
switch(_header.chunkId)
{
case CHUNK_GEOMETRY:
readGeometry(smInfo.vertexElements);
break;
case CHUNK_SUBMESH_OPERATION:
readSubMeshOperation(smInfo);
break;
case CHUNK_SUBMESH_BONE_ASSIGNMENT:
readSubMeshBoneAssignment(smInfo, boneIdxVE, boneWeightVE);
break;
case CHUNK_SUBMESH_TEXTURE_ALIAS:
readSubMeshTextureAlias();
break;
default:
OSG_OGRE_LOG(("OgreMeshReader::readSubMesh: Unknown chunkId '0x%x'\n",
_header.chunkId));
stop = true;
break;
};
if(stop == true)
{
skip(_is, -_chunkHeaderSize);
break;
}
}
if(boneIdxVE >= 0 || boneWeightVE >= 0)
{
verifyBoneAssignment(smInfo.vertexElements, boneIdxVE, boneWeightVE);
}
}
