void ModelConverter::WriteSubMesh( DiSubMesh* subMod, const Ogre::SubMesh* s )
{
switch(s->operationType)
{
case RenderOperation::OT_LINE_LIST:
subMod->SetPrimitiveType(D3DPT_LINELIST);
break;
case RenderOperation::OT_LINE_STRIP:
subMod->SetPrimitiveType(D3DPT_LINESTRIP);
break;
case RenderOperation::OT_POINT_LIST:
subMod->SetPrimitiveType(D3DPT_POINTLIST);
break;
case RenderOperation::OT_TRIANGLE_FAN:
subMod->SetPrimitiveType(D3DPT_TRIANGLEFAN);
break;
case RenderOperation::OT_TRIANGLE_LIST:
subMod->SetPrimitiveType(PT_TRIANGLELIST);
break;
case RenderOperation::OT_TRIANGLE_STRIP:
subMod->SetPrimitiveType(D3DPT_TRIANGLESTRIP);
break;
}
VertexData* vertexData = nullptr;
if (mMesh->sharedVertexData)
{
vertexData = mMesh->sharedVertexData;
}
else
{
vertexData = s->vertexData;
}
int numFaces = 0;
switch(s->operationType)
{
case RenderOperation::OT_TRIANGLE_LIST:
// triangle list
numFaces = s->indexData->indexCount / 3;
break;
case RenderOperation::OT_LINE_LIST:
numFaces = s->indexData->indexCount / 2;
break;
case RenderOperation::OT_TRIANGLE_FAN:
case RenderOperation::OT_TRIANGLE_STRIP:
// triangle fan or triangle strip
numFaces = s->indexData->indexCount - 2;
break;
default:
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
"Unsupported render operation type",
__FUNCTION__);
}
subMod->SetPrimitiveCount(numFaces);
subMod->SetVerticeNum(vertexData->vertexCount);
// material name
DiString matName;
matName.Format("%s_%d.mtl",subMod->GetParentMesh()->GetName().c_str(),subMod->GetIndex());
subMod->SetMaterialName(matName);
bool use32BitIndexes = (!s->indexData->indexBuffer.isNull() &&
s->indexData->indexBuffer->getType() == HardwareIndexBuffer::IT_32BIT);
// Write each face in turn
unsigned int* pInt = 0;
unsigned short* pShort = 0;
HardwareIndexBufferSharedPtr ibuf = s->indexData->indexBuffer;
// index data
if (use32BitIndexes)
{
pInt = static_cast<unsigned int*>(
ibuf->lock(HardwareBuffer::HBL_READ_ONLY));
}
else
{
pShort = static_cast<unsigned short*>(
ibuf->lock(HardwareBuffer::HBL_READ_ONLY));
}
void* indata = subMod->CreateIndexData(s->indexData->indexCount,use32BitIndexes?TRUE:FALSE);
if (use32BitIndexes)
{
memcpy(indata,pInt,sizeof(unsigned int)*s->indexData->indexCount);
}
else
{
memcpy(indata,pShort,sizeof(unsigned short)*s->indexData->indexCount);
}
ibuf->unlock();
// vertex declaration
VertexDeclaration* decl = vertexData->vertexDeclaration;
VertexBufferBinding* bind = vertexData->vertexBufferBinding;
VertexBufferBinding::VertexBufferBindingMap::const_iterator b, bend;
bend = bind->getBindings().end();
// iterate over buffers
int bindCount = 0;
for(b = bind->getBindings().begin(); b != bend; ++b,++bindCount)
{
const HardwareVertexBufferSharedPtr vbuf = b->second;
unsigned short bufferIdx = b->first;
// get all the elements that relate to this buffer
VertexDeclaration::VertexElementList elems = decl->findElementsBySource(bufferIdx);
VertexDeclaration::VertexElementList::iterator i, iend;
iend = elems.end();
unsigned short nuDemiureCoords = 0;
for (i = elems.begin(); i != iend; ++i)
{
VertexElement& elem = *i;
D3DDECLTYPE type = ConverteVertType(elem.getType());
D3DDECLUSAGE usage;
bool texcoord = false;
switch(elem.getSemantic())
{
case VES_POSITION:
usage = D3DDECLUSAGE_POSITION;
break;
case VES_NORMAL:
usage = D3DDECLUSAGE_NORMAL;
break;
case VES_TANGENT:
usage = D3DDECLUSAGE_TANGENT;
break;
case VES_BINORMAL:
usage = D3DDECLUSAGE_BINORMAL;
break;
case VES_DIFFUSE:
case VES_SPECULAR:
usage = D3DDECLUSAGE_COLOR;
break;
case VES_TEXTURE_COORDINATES:
usage = D3DDECLUSAGE_TEXCOORD;
++nuDemiureCoords;
texcoord = true;
break;
default:
DI_ERROR("Unsupported semantic");
}
subMod->GetVertexElements().AddElement(bindCount,type,usage,texcoord?nuDemiureCoords-1:0);
}
int stride = subMod->GetVertexElements().GetStreamElementsSize(bindCount);
void* vertData = subMod->CreateSourceData(bindCount,vertexData->vertexCount,stride);
unsigned char* pVert = static_cast<unsigned char*>(
vbuf->lock(HardwareBuffer::HBL_READ_ONLY));
memcpy(vertData,pVert,vertexData->vertexCount*stride);
vbuf->unlock();
}
// vertex weight
if (mMesh->hasSkeleton())
{
LogManager::getSingleton().logMessage("Exporting dedicated geometry bone assignments...");
if(const_cast<SubMesh*>(s)->getBoneAssignments().empty())
{
SubMesh::BoneAssignmentIterator bi = mMesh->getBoneAssignmentIterator();
while (bi.hasMoreElements())
{
const VertexBoneAssignment& assign = bi.getNext();
if (assign.weight > 0.0f)
{
subMod->AddWeight(assign.vertexIndex,assign.boneIndex,assign.weight);
}
}
}
else
{
SubMesh::BoneAssignmentIterator bi = (const_cast<SubMesh*>(s))->getBoneAssignmentIterator();
while (bi.hasMoreElements())
{
const VertexBoneAssignment& assign = bi.getNext();
if (assign.weight > 0.0f)
{
subMod->AddWeight(assign.vertexIndex,assign.boneIndex,assign.weight);
}
}
}
subMod->RationaliseBoneWeights();
}
}
