void MeshBuilder::end()
{
assert(!m_bIsSharedVertices && !m_currentSubMesh.strName.empty() && "You must call begin() before you call end()");
assert(!m_currentSubMesh.bUseSharedVertices || m_mesh->sharedVertexData);
// Declarations
std::map<unsigned short, std::vector<tElement> >::iterator iterSource, iterSourceEnd;
std::vector<tVertex>::iterator iterVertex, iterVertexEnd;
HardwareVertexBufferSharedPtr vbuffer;
VertexData* pVertexData;
// If a temporary vertex is pending, add it to the list
if (m_bTempVertexPending)
copyTempVertexToBuffer();
m_bFirstVertex = false;
m_bAutomaticDeclaration = false;
m_bIsSharedVertices = false;
// Create the submesh
SubMesh* pSubMesh = m_mesh->createSubMesh(m_currentSubMesh.strName);
pSubMesh->setMaterialName(m_currentSubMesh.strMaterial);
pSubMesh->useSharedVertices = m_currentSubMesh.bUseSharedVertices;
pSubMesh->operationType = m_currentSubMesh.opType;
// Initializes the vertex declaration if necessary
if (!m_currentSubMesh.bUseSharedVertices)
{
pSubMesh->vertexData = createVertexData();
pVertexData = pSubMesh->vertexData;
}
else
{
pVertexData = m_mesh->sharedVertexData;
}
// Add the vertices into their buffers
VertexBufferBinding::VertexBufferBindingMap bindings = pVertexData->vertexBufferBinding->getBindings();
for (iterSource = m_currentSubMesh.verticesElements.begin(), iterSourceEnd = m_currentSubMesh.verticesElements.end();
iterSource != iterSourceEnd; ++iterSource)
{
unsigned int vertexIndex = 0;
for (iterVertex = m_currentSubMesh.vertices.begin(), iterVertexEnd = m_currentSubMesh.vertices.end();
iterVertex != iterVertexEnd; ++iterVertex)
{
if ((iterVertex->blendingDim > 0) && !m_mesh->getSkeletonName().empty())
{
VertexBoneAssignment ass;
ass.vertexIndex = vertexIndex;
for (unsigned int i = 0; i < iterVertex->blendingDim; ++i)
{
ass.boneIndex = iterVertex->blendingIndices[i];
ass.weight = iterVertex->blendingWeights[i];
pSubMesh->addBoneAssignment(ass);
}
}
++vertexIndex;
}
}
// Add the indices into their buffer
pSubMesh->indexData->indexCount = m_currentSubMesh.indices.size();
pSubMesh->indexData->indexBuffer = HardwareBufferManager::getSingleton().createIndexBuffer(
HardwareIndexBuffer::IT_16BIT, m_currentSubMesh.indices.size(),
m_currentSubMesh.indexBufferInfo.usage,
m_currentSubMesh.indexBufferInfo.bUseShadowBuffer);
pSubMesh->indexData->indexBuffer->writeData(0, m_currentSubMesh.indices.size() * sizeof(unsigned short),
&m_currentSubMesh.indices[0]);
// Update the AABB and the radius of the mesh
m_mesh->_setBounds(toOgre(m_AABB));
m_mesh->_setBoundingSphereRadius(m_radius);
// Reset the internal state
m_currentSubMesh.strName = "";
m_currentSubMesh.strMaterial = "";
m_currentSubMesh.bUseSharedVertices = false;
m_currentSubMesh.indexBufferInfo.usage = HardwareBuffer::HBU_STATIC_WRITE_ONLY;
m_currentSubMesh.indexBufferInfo.bUseShadowBuffer = false;
m_currentSubMesh.verticesElements.clear();
m_currentSubMesh.vertexBufferInfos.clear();
m_currentSubMesh.vertices.clear();
m_currentSubMesh.indices.clear();
}
MeshPtr MeshMergeTool::merge(const Ogre::String& name, const Ogre::String& resourceGroupName)
{
print("Baking: New Mesh started", V_HIGH);
MeshPtr mp = MeshManager::getSingleton().createManual(name, resourceGroupName);
if (!mBaseSkeleton.isNull())
{
mp->setSkeletonName(mBaseSkeleton->getName());
}
AxisAlignedBox totalBounds = AxisAlignedBox();
for (std::vector<Ogre::MeshPtr>::iterator it = mMeshes.begin(); it != mMeshes.end(); ++it)
{
print("Baking: adding submeshes for " + (*it)->getName(), V_HIGH);
// insert all submeshes
for (Ogre::ushort sid = 0; sid < (*it)->getNumSubMeshes(); ++sid)
{
SubMesh* sub = (*it)->getSubMesh(sid);
const String name = findSubmeshName((*it), sid);
// create submesh with correct name
SubMesh* newsub;
if (name.length() == 0)
{
newsub = mp->createSubMesh();
}
else
{
/// @todo check if a submesh with this name has been created before
newsub = mp->createSubMesh(name);
}
newsub->useSharedVertices = sub->useSharedVertices;
// add index
newsub->indexData = sub->indexData->clone();
// add geometry
if (!newsub->useSharedVertices)
{
newsub->vertexData = sub->vertexData->clone();
if (!mBaseSkeleton.isNull())
{
// build bone assignments
SubMesh::BoneAssignmentIterator bit = sub->getBoneAssignmentIterator();
while (bit.hasMoreElements())
{
VertexBoneAssignment vba = bit.getNext();
newsub->addBoneAssignment(vba);
}
}
}
newsub->setMaterialName(sub->getMaterialName());
// Add vertex animations for this submesh
Animation *anim = 0;
for (unsigned short i = 0; i < (*it)->getNumAnimations(); ++i)
{
anim = (*it)->getAnimation(i);
// get or create the animation for the new mesh
Animation *newanim;
if (mp->hasAnimation(anim->getName()))
{
newanim = mp->getAnimation(anim->getName());
}
else
{
newanim = mp->createAnimation(anim->getName(), anim->getLength());
}
print("Baking: adding vertex animation "
+ anim->getName() + " for " + (*it)->getName(), V_HIGH);
Animation::VertexTrackIterator vti=anim->getVertexTrackIterator();
while (vti.hasMoreElements())
{
VertexAnimationTrack *vt = vti.getNext();
// handle=0 targets the main mesh, handle i (where i>0) targets submesh i-1.
// In this case there are only submeshes so index 0 will not be used.
unsigned short handle = mp->getNumSubMeshes();
VertexAnimationTrack* newvt = newanim->createVertexTrack(
handle,
vt->getAssociatedVertexData()->clone(),
vt->getAnimationType());
for (int keyFrameIndex = 0; keyFrameIndex < vt->getNumKeyFrames();
++keyFrameIndex)
{
switch (vt->getAnimationType())
{
case VAT_MORPH:
{
// copy the keyframe vertex buffer
VertexMorphKeyFrame *kf =
vt->getVertexMorphKeyFrame(keyFrameIndex);
VertexMorphKeyFrame *newkf =
newvt->createVertexMorphKeyFrame(kf->getTime());
// This creates a ref to the buffer in the original model
// so don't delete it until the export is completed.
newkf->setVertexBuffer(kf->getVertexBuffer());
break;
}
case VAT_POSE:
{
/// @todo implement pose amination merge
break;
}
case VAT_NONE:
default:
{
break;
}
}
}
}
}
print("Baking: adding submesh '" +
name + "' with material " + sub->getMaterialName(), V_HIGH);
}
// sharedvertices
if ((*it)->sharedVertexData)
{
/// @todo merge with existing sharedVertexData
if (!mp->sharedVertexData)
{
mp->sharedVertexData = (*it)->sharedVertexData->clone();
}
if (!mBaseSkeleton.isNull())
{
Mesh::BoneAssignmentIterator bit = (*it)->getBoneAssignmentIterator();
while (bit.hasMoreElements())
{
VertexBoneAssignment vba = bit.getNext();
mp->addBoneAssignment(vba);
}
}
}
print("Baking: adding bounds for " + (*it)->getName(), V_HIGH);
// add bounds
totalBounds.merge((*it)->getBounds());
}
mp->_setBounds(totalBounds);
/// @todo merge submeshes with same material
/// @todo add parameters
mp->buildEdgeList();
print("Baking: Finished", V_HIGH);
reset();
return mp;
}
MeshPtr MergeMesh::bake()
{
log(
"Baking: New Mesh started" );
MeshPtr mp = MeshManager::getSingleton().
createManual( "mergedMesh", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME );
mp->setSkeletonName( m_BaseSkeleton->getName() );
AxisAlignedBox totalBounds = AxisAlignedBox();
for( std::vector< Ogre::MeshPtr >::iterator it = m_Meshes.begin();
it != m_Meshes.end(); ++it )
{
log(
"Baking: adding submeshes for " + (*it)->getName() );
// insert all submeshes
for( Ogre::ushort sid = 0; sid < (*it)->getNumSubMeshes(); ++sid )
{
SubMesh* sub = (*it)->getSubMesh( sid );
const String name = findSubmeshName( (*it), sid );
// create submesh with correct name
SubMesh* newsub;
if( name.length() == 0 )
newsub = mp->createSubMesh( );
else
/// @todo check if a submesh with this name has been created before
newsub = mp->createSubMesh( name );
newsub->useSharedVertices = sub->useSharedVertices;
// add index
newsub->indexData = sub->indexData->clone();
// add geometry
if( !newsub->useSharedVertices )
{
newsub->vertexData = sub->vertexData->clone();
// build bone assignments
SubMesh::BoneAssignmentIterator bit = sub->getBoneAssignmentIterator();
while (bit.hasMoreElements())
{
VertexBoneAssignment vba = bit.getNext();
newsub->addBoneAssignment(vba);
}
}
newsub->setMaterialName( sub->getMaterialName() );
log("Baking: adding submesh '" + name + "' with material " + sub->getMaterialName());
}
// sharedvertices
if ((*it)->sharedVertexData)
{
/// @todo merge with existing sharedVertexData
if (!mp->sharedVertexData)
{
mp->sharedVertexData = (*it)->sharedVertexData->clone();
}
Mesh::BoneAssignmentIterator bit = (*it)->getBoneAssignmentIterator();
while (bit.hasMoreElements())
{
VertexBoneAssignment vba = bit.getNext();
mp->addBoneAssignment(vba);
}
}
log("Baking: adding bounds for " + (*it)->getName());
// add bounds
totalBounds.merge((*it)->getBounds());
}
mp->_setBounds( totalBounds );
/// @todo merge submeshes with same material
/// @todo add parameters
mp->buildEdgeList();
log(
"Baking: Finished" );
return mp;
}
//-----------------------------------------------------------------------
void InstanceManager::unshareVertices(const Ogre::MeshPtr &mesh)
{
// Retrieve data to copy bone assignments
const Mesh::VertexBoneAssignmentList& boneAssignments = mesh->getBoneAssignments();
Mesh::VertexBoneAssignmentList::const_iterator it = boneAssignments.begin();
Mesh::VertexBoneAssignmentList::const_iterator end = boneAssignments.end();
size_t curVertexOffset = 0;
// Access shared vertices
VertexData* sharedVertexData = mesh->sharedVertexData;
for (size_t subMeshIdx = 0; subMeshIdx < mesh->getNumSubMeshes(); subMeshIdx++)
{
SubMesh *subMesh = mesh->getSubMesh(subMeshIdx);
IndexData *indexData = subMesh->indexData;
HardwareIndexBuffer::IndexType idxType = indexData->indexBuffer->getType();
IndicesMap indicesMap = (idxType == HardwareIndexBuffer::IT_16BIT) ? getUsedIndices<uint16>(indexData) :
getUsedIndices<uint32>(indexData);
VertexData *newVertexData = new VertexData();
newVertexData->vertexCount = indicesMap.size();
newVertexData->vertexDeclaration = sharedVertexData->vertexDeclaration->clone();
for (size_t bufIdx = 0; bufIdx < sharedVertexData->vertexBufferBinding->getBufferCount(); bufIdx++)
{
HardwareVertexBufferSharedPtr sharedVertexBuffer = sharedVertexData->vertexBufferBinding->getBuffer(bufIdx);
size_t vertexSize = sharedVertexBuffer->getVertexSize();
HardwareVertexBufferSharedPtr newVertexBuffer = HardwareBufferManager::getSingleton().createVertexBuffer
(vertexSize, newVertexData->vertexCount, sharedVertexBuffer->getUsage(), sharedVertexBuffer->hasShadowBuffer());
uint8 *oldLock = (uint8*)sharedVertexBuffer->lock(0, sharedVertexData->vertexCount * vertexSize, HardwareBuffer::HBL_READ_ONLY);
uint8 *newLock = (uint8*)newVertexBuffer->lock(0, newVertexData->vertexCount * vertexSize, HardwareBuffer::HBL_NORMAL);
IndicesMap::iterator indIt = indicesMap.begin();
IndicesMap::iterator endIndIt = indicesMap.end();
for (; indIt != endIndIt; ++indIt)
{
memcpy(newLock + vertexSize * indIt->second, oldLock + vertexSize * indIt->first, vertexSize);
}
sharedVertexBuffer->unlock();
newVertexBuffer->unlock();
newVertexData->vertexBufferBinding->setBinding(bufIdx, newVertexBuffer);
}
if (idxType == HardwareIndexBuffer::IT_16BIT)
{
copyIndexBuffer<uint16>(indexData, indicesMap);
}
else
{
copyIndexBuffer<uint32>(indexData, indicesMap);
}
// Store new attributes
subMesh->useSharedVertices = false;
subMesh->vertexData = newVertexData;
// Transfer bone assignments to the submesh
size_t offset = curVertexOffset + newVertexData->vertexCount;
for (; it != end; ++it)
{
size_t vertexIdx = (*it).first;
if (vertexIdx > offset)
break;
VertexBoneAssignment boneAssignment = (*it).second;
boneAssignment.vertexIndex = static_cast<unsigned int>(boneAssignment.vertexIndex - curVertexOffset);
subMesh->addBoneAssignment(boneAssignment);
}
curVertexOffset = newVertexData->vertexCount + 1;
}
// Release shared vertex data
delete mesh->sharedVertexData;
mesh->sharedVertexData = NULL;
mesh->clearBoneAssignments();
}
//---------------------------------------------------------------------
void OptimiseTool::processMesh(Ogre::MeshPtr mesh)
{
bool rebuildEdgeList = false;
// Shared geometry
if (mesh->sharedVertexData)
{
print("Optimising mesh shared vertex data...");
setTargetVertexData(mesh->sharedVertexData);
for (unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
SubMesh* sm = mesh->getSubMesh(i);
if (sm->useSharedVertices)
{
addIndexData(sm->indexData);
}
}
if (optimiseGeometry())
{
if (mesh->getSkeletonName() != StringUtil::BLANK)
{
print(" fixing bone assignments...");
Mesh::BoneAssignmentIterator currentIt = mesh->getBoneAssignmentIterator();
Mesh::VertexBoneAssignmentList newList =
getAdjustedBoneAssignments(currentIt);
mesh->clearBoneAssignments();
for (Mesh::VertexBoneAssignmentList::iterator bi = newList.begin();
bi != newList.end(); ++bi)
{
mesh->addBoneAssignment(bi->second);
}
}
for (unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
SubMesh* sm = mesh->getSubMesh(i);
if (mesh->getSkeletonName() != StringUtil::BLANK)
{
print(" fixing bone assignments...");
Mesh::BoneAssignmentIterator currentIt = sm->getBoneAssignmentIterator();
Mesh::VertexBoneAssignmentList newList =
getAdjustedBoneAssignments(currentIt);
sm->clearBoneAssignments();
for (Mesh::VertexBoneAssignmentList::iterator bi = newList.begin();
bi != newList.end(); ++bi)
{
sm->addBoneAssignment(bi->second);
}
}
if (sm->useSharedVertices)
{
fixLOD(sm->mLodFaceList);
}
}
rebuildEdgeList = true;
}
}
// Dedicated geometry
for (unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
SubMesh* sm = mesh->getSubMesh(i);
if (!sm->useSharedVertices)
{
print("Optimising submesh " +
StringConverter::toString(i) + " dedicated vertex data ");
setTargetVertexData(sm->vertexData);
addIndexData(sm->indexData);
if (optimiseGeometry())
{
if (mesh->getSkeletonName() != StringUtil::BLANK)
{
print(" fixing bone assignments...");
Mesh::BoneAssignmentIterator currentIt = sm->getBoneAssignmentIterator();
Mesh::VertexBoneAssignmentList newList =
getAdjustedBoneAssignments(currentIt);
sm->clearBoneAssignments();
for (Mesh::VertexBoneAssignmentList::iterator bi = newList.begin();
bi != newList.end(); ++bi)
{
sm->addBoneAssignment(bi->second);
}
}
fixLOD(sm->mLodFaceList);
rebuildEdgeList = true;
}
}
}
if (rebuildEdgeList && mesh->isEdgeListBuilt())
{
// force rebuild of edge list
mesh->freeEdgeList();
mesh->buildEdgeList();
}
}
// Convert Nif::NiTriShape to Ogre::SubMesh, attached to the given
// mesh.
void NIFLoader::createOgreSubMesh(NiTriShape *shape, const String &material, std::list<VertexBoneAssignment> &vertexBoneAssignments)
{
// cout << "s:" << shape << "\n";
NiTriShapeData *data = shape->data.getPtr();
SubMesh *sub = mesh->createSubMesh(shape->name.toString());
int nextBuf = 0;
// This function is just one long stream of Ogre-barf, but it works
// great.
// Add vertices
int numVerts = data->vertices.length / 3;
sub->vertexData = new VertexData();
sub->vertexData->vertexCount = numVerts;
sub->useSharedVertices = false;
VertexDeclaration *decl = sub->vertexData->vertexDeclaration;
decl->addElement(nextBuf, 0, VET_FLOAT3, VES_POSITION);
HardwareVertexBufferSharedPtr vbuf =
HardwareBufferManager::getSingleton().createVertexBuffer(
VertexElement::getTypeSize(VET_FLOAT3),
numVerts, HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY, false);
if(flip)
{
float *datamod = new float[data->vertices.length];
//std::cout << "Shape" << shape->name.toString() << "\n";
for(int i = 0; i < numVerts; i++)
{
int index = i * 3;
const float *pos = data->vertices.ptr + index;
Ogre::Vector3 original = Ogre::Vector3(*pos ,*(pos+1), *(pos+2));
original = mTransform * original;
mBoundingBox.merge(original);
datamod[index] = original.x;
datamod[index+1] = original.y;
datamod[index+2] = original.z;
}
vbuf->writeData(0, vbuf->getSizeInBytes(), datamod, false);
delete [] datamod;
}
else
{
vbuf->writeData(0, vbuf->getSizeInBytes(), data->vertices.ptr, false);
}
VertexBufferBinding* bind = sub->vertexData->vertexBufferBinding;
bind->setBinding(nextBuf++, vbuf);
if (data->normals.length)
{
decl->addElement(nextBuf, 0, VET_FLOAT3, VES_NORMAL);
vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
VertexElement::getTypeSize(VET_FLOAT3),
numVerts, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
if(flip)
{
Quaternion rotation = mTransform.extractQuaternion();
rotation.normalise();
float *datamod = new float[data->normals.length];
for(int i = 0; i < numVerts; i++)
{
int index = i * 3;
const float *pos = data->normals.ptr + index;
Ogre::Vector3 original = Ogre::Vector3(*pos ,*(pos+1), *(pos+2));
original = rotation * original;
if (mNormaliseNormals)
{
original.normalise();
}
datamod[index] = original.x;
datamod[index+1] = original.y;
datamod[index+2] = original.z;
}
vbuf->writeData(0, vbuf->getSizeInBytes(), datamod, false);
delete [] datamod;
}
else
{
vbuf->writeData(0, vbuf->getSizeInBytes(), data->normals.ptr, false);
}
bind->setBinding(nextBuf++, vbuf);
}
// Vertex colors
if (data->colors.length)
{
const float *colors = data->colors.ptr;
RenderSystem* rs = Root::getSingleton().getRenderSystem();
std::vector<RGBA> colorsRGB(numVerts);
RGBA *pColour = &colorsRGB.front();
for (int i=0; i<numVerts; i++)
{
rs->convertColourValue(ColourValue(colors[0],colors[1],colors[2],
colors[3]),pColour++);
colors += 4;
}
decl->addElement(nextBuf, 0, VET_COLOUR, VES_DIFFUSE);
vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
VertexElement::getTypeSize(VET_COLOUR),
numVerts, HardwareBuffer::HBU_STATIC_WRITE_ONLY);
vbuf->writeData(0, vbuf->getSizeInBytes(), &colorsRGB.front(), true);
bind->setBinding(nextBuf++, vbuf);
}
if (data->uvlist.length)
{
decl->addElement(nextBuf, 0, VET_FLOAT2, VES_TEXTURE_COORDINATES);
vbuf = HardwareBufferManager::getSingleton().createVertexBuffer(
VertexElement::getTypeSize(VET_FLOAT2),
numVerts, HardwareBuffer::HBU_STATIC_WRITE_ONLY,false);
if(flip)
{
float *datamod = new float[data->uvlist.length];
for(unsigned int i = 0; i < data->uvlist.length; i+=2){
float x = *(data->uvlist.ptr + i);
float y = *(data->uvlist.ptr + i + 1);
datamod[i] =x;
datamod[i + 1] =y;
}
vbuf->writeData(0, vbuf->getSizeInBytes(), datamod, false);
delete [] datamod;
}
else
vbuf->writeData(0, vbuf->getSizeInBytes(), data->uvlist.ptr, false);
bind->setBinding(nextBuf++, vbuf);
}
// Triangle faces - The total number of triangle points
int numFaces = data->triangles.length;
if (numFaces)
{
sub->indexData->indexCount = numFaces;
sub->indexData->indexStart = 0;
HardwareIndexBufferSharedPtr ibuf = HardwareBufferManager::getSingleton().
createIndexBuffer(HardwareIndexBuffer::IT_16BIT,
numFaces,
HardwareBuffer::HBU_STATIC_WRITE_ONLY, true);
if(flip && mFlipVertexWinding && sub->indexData->indexCount % 3 == 0){
sub->indexData->indexBuffer = ibuf;
uint16 *datamod = new uint16[numFaces];
int index = 0;
for (size_t i = 0; i < sub->indexData->indexCount; i+=3)
{
const short *pos = data->triangles.ptr + index;
uint16 i0 = (uint16) *(pos+0);
uint16 i1 = (uint16) *(pos+1);
uint16 i2 = (uint16) *(pos+2);
//std::cout << "i0: " << i0 << "i1: " << i1 << "i2: " << i2 << "\n";
datamod[index] = i2;
datamod[index+1] = i1;
datamod[index+2] = i0;
index += 3;
}
ibuf->writeData(0, ibuf->getSizeInBytes(), datamod, false);
delete [] datamod;
}
else
ibuf->writeData(0, ibuf->getSizeInBytes(), data->triangles.ptr, false);
sub->indexData->indexBuffer = ibuf;
}
// Set material if one was given
if (!material.empty()) sub->setMaterialName(material);
//add vertex bone assignments
for (std::list<VertexBoneAssignment>::iterator it = vertexBoneAssignments.begin();
it != vertexBoneAssignments.end(); it++)
{
sub->addBoneAssignment(*it);
}
if(mSkel.isNull())
needBoneAssignments.push_back(sub);
}
