void processPositionElement( VertexData* vertexData, const VertexElement* vertexElem )
{
int nMaxVert= vertexData->vertexCount ;
//const Ogre::VertexElement* VertexEle_POS = vertexData->vertexDeclaration->findElementBySemantic( Ogre::VES_POSITION );
// get vertex buffer info via the input element
Ogre::HardwareVertexBufferSharedPtr VertexBufPOS = vertexData->vertexBufferBinding->getBuffer( vertexElem->getSource() );
//LOCK BUFFER
unsigned char* VertexPtrPOS = static_cast<unsigned char*>( VertexBufPOS->lock( Ogre::HardwareBuffer::HBL_NORMAL) );
int VertSizePOS=VertexBufPOS->getVertexSize();
float * pElementPOS=NULL;
//A vector of every vertices position
std::vector<Ogre::Vector3> positions(nMaxVert);
//Copy each position into position vector
for(int nVert=0 ; nVert<nMaxVert ; nVert++)
{
vertexElem->baseVertexPointerToElement( VertexPtrPOS, &pElementPOS );
Ogre::Vector3 vertex(pElementPOS);
vertex = mTransform * vertex;
pElementPOS[0] = vertex.x;
pElementPOS[1] = vertex.y;
pElementPOS[2] = vertex.z;
mBoundingBox.merge(vertex);
VertexPtrPOS+=VertSizePOS ;
}
//UNLOCK BUFFER
if(VertexBufPOS->isLocked()){VertexBufPOS->unlock();}
}
//------------------------------------------------------------------------------------------------
void VertexIndexToShape::addStaticVertexData(const Ogre::VertexData *vertex_data)
{
if (!vertex_data)
{
return;
}
const Ogre::VertexData *data = vertex_data;
const unsigned int prev_size = mVertexCount;
mVertexCount += (unsigned int)data->vertexCount;
Ogre::Vector3 *tmp_vert = new Ogre::Vector3[mVertexCount];
if (mVertexBuffer)
{
memcpy(tmp_vert, mVertexBuffer, sizeof(Ogre::Vector3) * prev_size);
delete[] mVertexBuffer;
}
mVertexBuffer = tmp_vert;
// Get the positional buffer element
{
const Ogre::VertexElement *posElem = data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf = data->vertexBufferBinding->getBuffer(posElem->getSource());
const unsigned int vSize = (unsigned int)vbuf->getVertexSize();
unsigned char *vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
float *pReal = NULL;
Ogre::Vector3 * curVertices = &mVertexBuffer[prev_size];
const unsigned int vertexCount = (unsigned int)data->vertexCount;
for (unsigned int j = 0; j < vertexCount; ++j)
{
posElem->baseVertexPointerToElement(vertex, &pReal);
vertex += vSize;
curVertices->x = (*pReal++);
curVertices->y = (*pReal++);
curVertices->z = (*pReal++);
*curVertices = mTransform * (*curVertices);
curVertices++;
}
vbuf->unlock();
}
}
//-------------------------------------------------------
// http://www.ogre3d.org/tikiwiki/Raycasting+to+the+polygon+level
std::pair<bool, float> Ground::GetVertexIntersection(const Ogre::Ray & ray, const Ogre::SubMesh* subMesh)
{
OgreAssert(false == subMesh->useSharedVertices, "Mesh with shared data is not supported");
const Ogre::VertexElement* posElem = subMesh->vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuffer = subMesh->vertexData->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertexes = reinterpret_cast<unsigned char*>(vbuffer->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
size_t count = subMesh->vertexData->vertexCount;
float intersection = -1.0f;
OgreAssert(count == REGION_SIZE * REGION_SIZE * 4, "Wrong buffer size");
float* pReal;
for (size_t i = 0; i < REGION_SIZE * REGION_SIZE; ++i)
{
Ogre::Vector3 v0, v1, v2, v3;
for (auto vp : { &v0, &v1, &v2, &v3 })
{
posElem->baseVertexPointerToElement(vertexes, &pReal);
*vp = Ogre::Vector3(pReal[0], pReal[1], pReal[2]);
vertexes += vbuffer->getVertexSize();
}
auto hit1 = Ogre::Math::intersects(ray, v1, v2, v0, true, false);
if (hit1.first && (intersection < 0.0f || hit1.second < intersection))
{
intersection = hit1.second;
}
auto hit2 = Ogre::Math::intersects(ray, v3, v2, v1, true, false);
if (hit2.first && (intersection < 0.0f || hit2.second < intersection))
{
intersection = hit2.second;
}
}
vbuffer->unlock();
if (intersection >= 0.0f)
{
return std::make_pair(true, intersection);
}
return std::make_pair(false, -1.0f);
}
std::vector<Ogre::Vector3> OgreRecast::getManualObjectVertices(Ogre::ManualObject *manual)
{
std::vector<Ogre::Vector3> returnVertices;
unsigned long thisSectionStart = 0;
for (size_t i=0; i < manual->getNumSections(); i++)
{
Ogre::ManualObject::ManualObjectSection * section = manual->getSection(i);
Ogre::RenderOperation * renderOp = section->getRenderOperation();
//Collect the vertices
{
const Ogre::VertexElement * vertexElement = renderOp->vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vertexBuffer = renderOp->vertexData->vertexBufferBinding->getBuffer(vertexElement->getSource());
char * verticesBuffer = (char*)vertexBuffer->lock(Ogre::HardwareBuffer::HBL_READ_ONLY);
float * positionArrayHolder;
thisSectionStart = returnVertices.size();
returnVertices.reserve(returnVertices.size() + renderOp->vertexData->vertexCount);
for (unsigned int j=0; j<renderOp->vertexData->vertexCount; j++)
{
vertexElement->baseVertexPointerToElement(verticesBuffer + j * vertexBuffer->getVertexSize(), &positionArrayHolder);
Ogre::Vector3 vertexPos = Ogre::Vector3(positionArrayHolder[0],
positionArrayHolder[1],
positionArrayHolder[2]);
//vertexPos = (orient * (vertexPos * scale)) + position;
returnVertices.push_back(vertexPos);
}
vertexBuffer->unlock();
}
}
return returnVertices;
}
void VertexBuffer::AddFromVertexData(Ogre::VertexData* vertexData)
{
// Get vertex count
const unsigned int addedCount = vertexData->vertexCount;
if(_reserved < _size + addedCount)
{
Reserve(_size + addedCount);
}
// Get VertexElement with info on used vertex semantics
const Ogre::VertexElement* vertexElement =
vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
// Get actual vertex buffer and its size
Ogre::HardwareVertexBufferSharedPtr hardwareBuffer =
vertexData->vertexBufferBinding->getBuffer(vertexElement->getSource());
const unsigned int vertexSize = (unsigned int)hardwareBuffer->getVertexSize();
// Lock buffer with read-only to retrieve vertex data
unsigned char* buffer = static_cast<unsigned char*>(
hardwareBuffer->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
// Pointer to one component of vertex vector
float *curVertexData = NULL;
for (unsigned int j = 0; j < addedCount; ++j)
{
vertexElement->baseVertexPointerToElement(buffer, &curVertexData);
buffer += vertexSize;
_buffer.push_back(Ogre::Vector3(
*curVertexData,
*(curVertexData+1) ,
*(curVertexData+2)));
curVertexData += 3;
}
_size = _buffer.size();
hardwareBuffer->unlock();
}
void GPUBillboardSet::createVertexDataForVertexAndGeometryShaders(const std::vector<PhotoSynth::Vertex>& vertices)
{
// Setup render operation
mRenderOp.operationType = Ogre::RenderOperation::OT_POINT_LIST;
mRenderOp.vertexData = OGRE_NEW Ogre::VertexData();
mRenderOp.vertexData->vertexCount = vertices.size();
mRenderOp.vertexData->vertexStart = 0;
mRenderOp.useIndexes = false;
mRenderOp.indexData = 0;
// Vertex format declaration
unsigned short sourceBufferIdx = 0;
Ogre::VertexDeclaration* decl = mRenderOp.vertexData->vertexDeclaration;
size_t currOffset = 0;
decl->addElement(sourceBufferIdx, currOffset, Ogre::VET_FLOAT3, Ogre::VES_POSITION);
currOffset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3);
decl->addElement(sourceBufferIdx, currOffset, Ogre::VET_COLOUR, Ogre::VES_DIFFUSE);
currOffset += Ogre::VertexElement::getTypeSize(Ogre::VET_COLOUR);
// Create vertex buffer
Ogre::HardwareVertexBufferSharedPtr vbuf = Ogre::HardwareBufferManager::getSingleton().createVertexBuffer(
decl->getVertexSize(sourceBufferIdx),
mRenderOp.vertexData->vertexCount,
Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY);
// Bind vertex buffer
Ogre::VertexBufferBinding* bind = mRenderOp.vertexData->vertexBufferBinding;
bind->setBinding(sourceBufferIdx, vbuf);
// Fill vertex buffer (see http://www.ogre3d.org/docs/manual/manual_59.html#SEC287)
Ogre::RenderSystem* renderSystem = Ogre::Root::getSingletonPtr()->getRenderSystem();
unsigned char* pVert = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_DISCARD));
Ogre::Real* pReal;
Ogre::RGBA* pRGBA;
Ogre::VertexDeclaration::VertexElementList elems = decl->findElementsBySource(sourceBufferIdx);
Ogre::VertexDeclaration::VertexElementList::iterator itr;
for (unsigned int i=0; i<vertices.size(); ++i )
{
const PhotoSynth::Vertex& vertex = vertices[i];
for (itr=elems.begin(); itr!=elems.end(); ++itr)
{
Ogre::VertexElement& elem = *itr;
if (elem.getSemantic() == Ogre::VES_POSITION)
{
elem.baseVertexPointerToElement(pVert, &pReal);
*pReal = vertex.position.x; *pReal++;
*pReal = vertex.position.y; *pReal++;
*pReal = vertex.position.z; *pReal++;
}
else if (elem.getSemantic() == Ogre::VES_DIFFUSE)
{
elem.baseVertexPointerToElement(pVert, &pRGBA);
renderSystem->convertColourValue(vertex.color, pRGBA);
}
}
// Go to next vertex
pVert += vbuf->getVertexSize();
}
vbuf->unlock();
// Set material
this->setMaterial("GPUBillboardWithGS");
}
void GPUBillboardSet::createVertexDataForVertexShaderOnly(const std::vector<PhotoSynth::Vertex>& vertices)
{
// Setup render operation
mRenderOp.operationType = Ogre::RenderOperation::OT_TRIANGLE_LIST;
mRenderOp.vertexData = OGRE_NEW Ogre::VertexData();
mRenderOp.vertexData->vertexCount = vertices.size() * 4;
mRenderOp.vertexData->vertexStart = 0;
mRenderOp.useIndexes = true;
mRenderOp.indexData = OGRE_NEW Ogre::IndexData();
mRenderOp.indexData->indexCount = vertices.size() * 6;
mRenderOp.indexData->indexStart = 0;
// Vertex format declaration
unsigned short sourceBufferIdx = 0;
Ogre::VertexDeclaration* decl = mRenderOp.vertexData->vertexDeclaration;
size_t currOffset = 0;
decl->addElement(sourceBufferIdx, currOffset, Ogre::VET_FLOAT3, Ogre::VES_POSITION);
currOffset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT3);
decl->addElement(sourceBufferIdx, currOffset, Ogre::VET_COLOUR, Ogre::VES_DIFFUSE);
currOffset += Ogre::VertexElement::getTypeSize(Ogre::VET_COLOUR);
decl->addElement(sourceBufferIdx, currOffset, Ogre::VET_FLOAT2, Ogre::VES_TEXTURE_COORDINATES, 0);
currOffset += Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT2);
// Create vertex buffer
Ogre::HardwareVertexBufferSharedPtr vbuf = Ogre::HardwareBufferManager::getSingleton().createVertexBuffer(
decl->getVertexSize(sourceBufferIdx),
mRenderOp.vertexData->vertexCount,
Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY);
// Bind vertex buffer
Ogre::VertexBufferBinding* bind = mRenderOp.vertexData->vertexBufferBinding;
bind->setBinding(sourceBufferIdx, vbuf);
// Fill vertex buffer (see http://www.ogre3d.org/docs/manual/manual_59.html#SEC287)
Ogre::RenderSystem* renderSystem = Ogre::Root::getSingletonPtr()->getRenderSystem();
unsigned char* pVert = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_DISCARD));
Ogre::Real* pReal;
Ogre::RGBA* pRGBA;
Ogre::VertexDeclaration::VertexElementList elems = decl->findElementsBySource(sourceBufferIdx);
Ogre::VertexDeclaration::VertexElementList::iterator itr;
const Ogre::Vector2 uvs[4] = { Ogre::Vector2( -1.f, 1.f ),
Ogre::Vector2( -1.f, -1.f ),
Ogre::Vector2( 1.f, -1.f ),
Ogre::Vector2( 1.f, 1.f ) };
for (unsigned int i=0; i<vertices.size(); ++i )
{
const PhotoSynth::Vertex& vertex = vertices[i];
for ( unsigned int j=0; j<4; j++ )
{
for (itr=elems.begin(); itr!=elems.end(); ++itr)
{
Ogre::VertexElement& elem = *itr;
if (elem.getSemantic() == Ogre::VES_POSITION)
{
elem.baseVertexPointerToElement(pVert, &pReal);
*pReal = vertex.position.x; *pReal++;
*pReal = vertex.position.y; *pReal++;
*pReal = vertex.position.z; *pReal++;
}
else if (elem.getSemantic() == Ogre::VES_DIFFUSE)
{
elem.baseVertexPointerToElement(pVert, &pRGBA);
renderSystem->convertColourValue(vertex.color, pRGBA);
}
else if (elem.getSemantic() == Ogre::VES_TEXTURE_COORDINATES && elem.getIndex() == 0)
{
elem.baseVertexPointerToElement(pVert, &pReal);
*pReal = uvs[j].x; *pReal++;
*pReal = uvs[j].y; *pReal++;
}
}
// Go to next vertex
pVert += vbuf->getVertexSize();
}
}
vbuf->unlock();
// Create index buffer
if (mRenderOp.indexData->indexCount>=65536)
{
Ogre::HardwareIndexBufferSharedPtr ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer(
Ogre::HardwareIndexBuffer::IT_32BIT,
mRenderOp.indexData->indexCount,
Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
mRenderOp.indexData->indexBuffer = ibuf;
Ogre::uint32* indices = static_cast<Ogre::uint32*>(ibuf->lock( Ogre::HardwareBuffer::HBL_DISCARD));
Ogre::uint32 indexFirstVertex = 0;
const Ogre::uint32 inds[6] = { 0, 1, 2, 3, 0, 2 };
for (unsigned int i=0; i<vertices.size(); ++i)
{
for (unsigned int j=0; j<6; ++j)
{
*indices = indexFirstVertex + inds[j];
indices++;
}
indexFirstVertex +=4;
}
ibuf->unlock();
}
else
{
Ogre::HardwareIndexBufferSharedPtr ibuf = Ogre::HardwareBufferManager::getSingleton().createIndexBuffer(
Ogre::HardwareIndexBuffer::IT_16BIT,
mRenderOp.indexData->indexCount,
Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
mRenderOp.indexData->indexBuffer = ibuf;
Ogre::uint16* indices = static_cast<Ogre::uint16*>( ibuf->lock( Ogre::HardwareBuffer::HBL_DISCARD ) );
Ogre::uint32 indexFirstVertex = 0;
const Ogre::uint16 inds[6] = { 0, 1, 2, 3, 0, 2 };
for ( unsigned int i=0; i<vertices.size(); ++i )
{
for ( unsigned int j=0; j<6; ++j )
{
*indices = indexFirstVertex + inds[j];
indices++;
}
indexFirstVertex +=4;
}
ibuf->unlock();
}
// Set material
this->setMaterial("GPUBillboard");
}
void Renderer::FindClosestPolygon(Ogre::Entity* entity, float& closestDistance,
Ogre::Vector3& position, Ogre::Vector3& normal)
{
closestDistance = std::numeric_limits<float>::max(); // default value (means
// nothing detected)
// Get transformation
Ogre::SceneNode* parentNode = entity->getParentSceneNode();
Ogre::Vector3 parentPos;
Ogre::Quaternion parentOrientation;
Ogre::Vector3 parentScale;
if (parentNode)
{
parentPos = parentNode->_getDerivedPosition();
parentOrientation = parentNode->_getDerivedOrientation();
parentScale = parentNode->_getDerivedScale();
}
else
{
parentPos = Ogre::Vector3::ZERO;
parentOrientation = Ogre::Quaternion::IDENTITY;
parentScale = Ogre::Vector3::UNIT_SCALE;
}
// Handle animated entities
bool isAnimated = entity->hasSkeleton();
if (isAnimated)
{
entity->addSoftwareAnimationRequest(false);
entity->_updateAnimation();
}
// Loop through each submesh
Ogre::MeshPtr mesh = entity->getMesh();
for (uint i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* subMesh = mesh->getSubMesh(i);
// Ignore anything that isn't a triangle List
if (subMesh->operationType != Ogre::RenderOperation::OT_TRIANGLE_LIST)
continue;
// Get the vertex data
Ogre::VertexData* vertexData;
if (subMesh->useSharedVertices)
{
if (isAnimated)
vertexData = entity->_getSkelAnimVertexData();
else
vertexData = mesh->sharedVertexData;
}
else
{
if (isAnimated)
vertexData = entity->getSubEntity(i)->_getSkelAnimVertexData();
else
vertexData = subMesh->vertexData;
}
// Get the size of one vertex
const Ogre::VertexElement* posEl =
vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vBuff =
vertexData->vertexBufferBinding->getBuffer(posEl->getSource());
uint vertexSize = vBuff->getVertexSize();
// Save pointer to first vertex
short* pVertex = (short*)vBuff->lock(Ogre::HardwareBuffer::HBL_READ_ONLY);
short* pStartVertex = pVertex;
// Get the index buffer
// If it is null then skip as it must be a point cloud
Ogre::HardwareIndexBufferSharedPtr iBuff = subMesh->indexData->indexBuffer;
if (iBuff.isNull())
continue;
uint* pLong = (uint*)iBuff->lock(Ogre::HardwareBuffer::HBL_READ_ONLY);
uint16_t* pShort = (uint16_t*)pLong;
// Look through each vertex and check each triangle with the ray
Ogre::Vector3 vertexPos;
Ogre::Vector3 vertex1;
Ogre::Vector3 vertex2;
float* pReal;
uint index;
for (uint k = 0; k < subMesh->indexData->indexCount; k++)
{
// Read index value
if (iBuff->getType() == Ogre::HardwareIndexBuffer::IT_32BIT) // if 32bit indexes
{
index = (uint)pLong[k];
}
else
{
index = (uint)pShort[k];
}
// Read referenced vertex
pVertex = pStartVertex + (vertexSize * index); // calculate pointer
posEl->baseVertexPointerToElement(pVertex, &pReal); // read vertex
vertexPos = Ogre::Vector3(pReal[0], pReal[1], pReal[2]); // read position values
// Apply world transformations
if (parentNode)
vertexPos = (parentOrientation * (vertexPos * parentScale)) + parentPos;
// Figure out triangle and calculate the distance if it's the closest
switch (k % 3)
{
case 0:
vertex1 = vertexPos;
break;
case 1:
vertex2 = vertexPos;
break;
case 2:
RayToTriangleCheck(vertex1, vertex2, vertexPos, closestDistance, position, normal);
break;
default:
break;
}
}
iBuff->unlock();
vBuff->unlock();
}
if (isAnimated)
{
entity->removeSoftwareAnimationRequest(false);
}
}
void MeshUtils::meshBuffersToArrays(const Ogre::MeshPtr& mesh, Ogre::Vector3* vertices, unsigned long* indices)
{
bool added_shared = false;
size_t current_offset = 0;
size_t shared_offset = 0;
size_t next_offset = 0;
size_t index_offset = 0;
//const Ogre::Vector3 &position = ent->getParentNode()->_getDerivedPosition();
//const Ogre::Quaternion &orient = ent->getParentNode()->_getDerivedOrientation();
//const Ogre::Vector3 &scale = ent->getParentNode()->_getDerivedScale();
const Ogre::Vector3 &position = Ogre::Vector3::ZERO;
const Ogre::Quaternion &orient = Ogre::Quaternion::IDENTITY;
const Ogre::Vector3 &scale = Ogre::Vector3::UNIT_SCALE;
Ogre::Mesh::SubMeshIterator itr = mesh->getSubMeshIterator();
while (itr.hasMoreElements()) {
Ogre::SubMesh* submesh = itr.getNext();
Ogre::VertexData* vertex_data = submesh->useSharedVertices ? mesh->sharedVertexData : submesh->vertexData;
if ((!submesh->useSharedVertices) || (submesh->useSharedVertices && !added_shared)) {
if (submesh->useSharedVertices) {
added_shared = true;
shared_offset = current_offset;
}
const Ogre::VertexElement* posElem =
vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf =
vertex_data->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertex =
static_cast<unsigned char*> (vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
// There is _no_ baseVertexPointerToElement() which takes an Ogre::Real or a double
// as second argument. So make it float, to avoid trouble when Ogre::Real will
// be comiled/typedefed as double:
// Ogre::Real* pReal;
float* pReal;
for (size_t k = 0; k < vertex_data->vertexCount; ++k, vertex += vbuf->getVertexSize()) {
posElem->baseVertexPointerToElement(vertex, &pReal);
Ogre::Vector3 pt(pReal[0], pReal[1], pReal[2]);
vertices[current_offset + k] = (orient * (pt * scale)) + position;
//vertices[current_offset + k] = pt;
}
vbuf->unlock();
next_offset += vertex_data->vertexCount;
}
Ogre::IndexData* index_data = submesh->indexData;
size_t numTris = index_data->indexCount / 3;
Ogre::HardwareIndexBufferSharedPtr ibuf = index_data->indexBuffer;
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
unsigned long* pLong = static_cast<unsigned long*> (ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned short* pShort = reinterpret_cast<unsigned short*> (pLong);
size_t offset = (submesh->useSharedVertices) ? shared_offset : current_offset;
if (use32bitindexes) {
for (size_t k = 0; k < numTris * 3; ++k) {
indices[index_offset++] = pLong[k] + static_cast<unsigned long> (offset);
}
} else {
for (size_t k = 0; k < numTris * 3; ++k) {
indices[index_offset++] = static_cast<unsigned long> (pShort[k]) +
static_cast<unsigned long> (offset);
}
}
ibuf->unlock();
current_offset = next_offset;
}
}
void BtOgreSoftBody::updateOgreMesh()
{
Ogre::Node *ogreNode = mEntity->getParentNode();
//printf("updateOgreMesh %d %s %s\n", internalId, mEntity->getName().c_str(), ogreNode->getName().c_str());
Ogre::MeshPtr mesh = mEntity->getMesh();
Ogre::Mesh::SubMeshIterator subMeshI = mesh->getSubMeshIterator();
Ogre::SubMesh* subMesh = NULL;
Ogre::VertexData* vData = NULL;
Ogre::VertexDeclaration* vDeclaration = NULL;
const Ogre::VertexElement* vPosElement = NULL;
bool isSharedVerticesAdded = false;
unsigned short bufferIndex = 0;
Ogre::HardwareVertexBufferSharedPtr vBuffer;
// Can not do arithmetic operations on void*
unsigned char* lockedMem = NULL;
float* vPosition;
btSoftBody::tNodeArray& btNodes = mSoftBody->m_nodes;
//printf("Bullet nodes size %d\n", btNodes.size());
int ogreVertexIdx = 0;
while (subMeshI.hasMoreElements()) {
subMesh = subMeshI.getNext();
if (subMesh->useSharedVertices) {
if (isSharedVerticesAdded) {
continue;
}
vData = mesh->sharedVertexData;
// We need to add shared vertices only once
isSharedVerticesAdded = true;
} else {
vData = subMesh->vertexData;
}
vDeclaration = vData->vertexDeclaration;
vPosElement = vDeclaration->findElementBySemantic(Ogre::VES_POSITION);
bufferIndex = vPosElement->getSource();
vBuffer = vData->vertexBufferBinding->getBuffer(bufferIndex);
// Lock the buffer before reading from it
lockedMem = static_cast<unsigned char*>(vBuffer->lock(Ogre::HardwareBuffer::HBL_DISCARD));
// Read each vertex
for (unsigned int i = 0; i < vData->vertexCount; ++i) {
vPosElement->baseVertexPointerToElement(lockedMem, &vPosition);
int idx = getBulletIndex(ogreVertexIdx);
*vPosition++ = btNodes[idx].m_x.x();
*vPosition++ = btNodes[idx].m_x.y();
*vPosition = btNodes[idx++].m_x.z();
// Point to the next vertex
lockedMem += vBuffer->getVertexSize();
ogreVertexIdx++;
}
vBuffer->unlock();
}
btTransform transform = mSoftBody->getWorldTransform();
btQuaternion rot = transform.getRotation();
ogreNode->setOrientation(rot.w(), rot.x(), rot.y(), rot.z());
btVector3 pos = transform.getOrigin();
ogreNode->setPosition(pos.x(), pos.y(), pos.z());
}
//-----------------------------------------------------------------------
void MeshInfo::getMeshInformation( Ogre::MeshPtr mesh,
const Vector3 &position,
const Quaternion &orient,
const Vector3 &scale)
{
size_t vertexCount = 0;
size_t indexCount = 0;
Vector3* vertices = 0;
Vector3* normals;
unsigned long* indices = 0;
bool added_shared = false;
size_t current_offset = 0;
size_t shared_offset = 0;
size_t next_offset = 0;
size_t index_offset = 0;
// Calculate how many vertices and indices we're going to need
for ( unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* submesh = mesh->getSubMesh( i );
// We only need to add the shared vertices once
if(submesh->useSharedVertices)
{
if( !added_shared )
{
vertexCount += mesh->sharedVertexData->vertexCount;
added_shared = true;
}
}
else
{
vertexCount += submesh->vertexData->vertexCount;
}
// Add the indices
indexCount += submesh->indexData->indexCount;
}
// Allocate space for the vertices and indices
vertices = new Vector3[vertexCount];
normals = new Vector3[vertexCount];
indices = new unsigned long[indexCount];
added_shared = false;
// Run through the submeshes again, adding the data into the arrays
for ( unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* submesh = mesh->getSubMesh(i);
Ogre::VertexData* vertex_data = submesh->useSharedVertices ? mesh->sharedVertexData : submesh->vertexData;
if((!submesh->useSharedVertices)||(submesh->useSharedVertices && !added_shared))
{
if(submesh->useSharedVertices)
{
added_shared = true;
shared_offset = current_offset;
}
const Ogre::VertexElement* posElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
const Ogre::VertexElement* normalElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_NORMAL);
Ogre::HardwareVertexBufferSharedPtr vbuf = vertex_data->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
float* pReal;
for( size_t j = 0; j < vertex_data->vertexCount; ++j, vertex += vbuf->getVertexSize())
{
posElem->baseVertexPointerToElement(vertex, &pReal);
Vector3 pt(pReal[0], pReal[1], pReal[2]);
vertices[current_offset + j] = (orient * (pt * scale)) + position;
normalElem->baseVertexPointerToElement(vertex, &pReal);
Vector3 nt(pReal[0], pReal[1], pReal[2]);
normals[current_offset + j] = nt;
}
vbuf->unlock();
next_offset += vertex_data->vertexCount;
}
Ogre::IndexData* index_data = submesh->indexData;
size_t numTris = index_data->indexCount / 3;
Ogre::HardwareIndexBufferSharedPtr ibuf = index_data->indexBuffer;
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
unsigned long* pLong = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned short* pShort = reinterpret_cast<unsigned short*>(pLong);
size_t offset = (submesh->useSharedVertices)? shared_offset : current_offset;
size_t numTrisMultThree = numTris*3;
if ( use32bitindexes )
{
for ( size_t k = 0; k < numTrisMultThree; ++k)
{
indices[index_offset++] = pLong[k] + static_cast<unsigned long>(offset);
}
}
else
{
for ( size_t k = 0; k < numTrisMultThree; ++k)
{
indices[index_offset++] = static_cast<unsigned long>(pShort[k]) + static_cast<unsigned long>(offset);
}
}
ibuf->unlock();
current_offset = next_offset;
}
// Create triangles from the retrieved data
for (size_t k = 0; k < indexCount-1; k+=3)
{
Triangle t;
t.v1 = vertices [indices[k]];
t.vn1 = normals [indices[k]];
t.v2 = vertices [indices[k+1]];
t.vn2 = normals [indices[k+1]];
t.v3 = vertices [indices[k+2]];
t.vn3 = normals [indices[k+2]];
t.calculateSquareSurface();
t.calculateSurfaceNormal();
t.calculateEdgeNormals();
_triangles.push_back(t);
}
// Delete intermediate arrays
delete [] indices;
delete [] normals;
delete [] vertices;
// Sort the triangle on their size, if needed (only if a gaussian random number generator
// function is used to perform a random lookup of a triangle)
if (mDistribution == MSD_HOMOGENEOUS)
sort(_triangles.begin(), _triangles.end(), SortDescending());
else
if (mDistribution == MSD_HETEROGENEOUS_1)
sort(_triangles.begin(), _triangles.end(), SortAscending());
}
void Utils::GetMeshInformation(
const Ogre::MeshPtr mesh,
size_t &vertexCount,
Ogre::Vector3* &vertices,
size_t &indexCount,
unsigned* &indices)
{
bool addShared = false;
size_t currentOffset = 0;
size_t shared_offset = 0;
size_t nextOffset = 0;
size_t indexOffset = 0;
vertexCount = indexCount = 0;
for ( unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i) {
Ogre::SubMesh* submesh = mesh->getSubMesh(i);
if(submesh->useSharedVertices) {
if( !addShared ) {
vertexCount += mesh->sharedVertexData->vertexCount;
addShared = true;
}
}
else {
vertexCount += submesh->vertexData->vertexCount;
}
indexCount += submesh->indexData->indexCount;
}
vertices = new Ogre::Vector3[vertexCount];
indices = new unsigned[indexCount];
addShared = false;
for (unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i) {
Ogre::SubMesh* submesh = mesh->getSubMesh(i);
Ogre::VertexData* vertexData = submesh->useSharedVertices ? mesh->sharedVertexData : submesh->vertexData;
if ((!submesh->useSharedVertices) || (submesh->useSharedVertices && !addShared)) {
if(submesh->useSharedVertices) {
addShared = true;
shared_offset = currentOffset;
}
const Ogre::VertexElement* posElem =
vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf =
vertexData->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertex =
static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
float* pReal;
for( size_t j = 0; j < vertexData->vertexCount; ++j, vertex += vbuf->getVertexSize()) {
posElem->baseVertexPointerToElement(vertex, &pReal);
Ogre::Vector3 pt(pReal[0], pReal[1], pReal[2]);
vertices[currentOffset + j] = pt;
}
vbuf->unlock();
nextOffset += vertexData->vertexCount;
}
Ogre::IndexData* indexData = submesh->indexData;
size_t numTris = indexData->indexCount / 3;
Ogre::HardwareIndexBufferSharedPtr ibuf = indexData->indexBuffer;
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
unsigned long* pLong = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned short* pShort = reinterpret_cast<unsigned short*>(pLong);
size_t offset = (submesh->useSharedVertices)? shared_offset : currentOffset;
if ( use32bitindexes ) {
for ( size_t k = 0; k < numTris*3; ++k) {
indices[indexOffset++] = pLong[k] + static_cast<unsigned long>(offset);
}
}
else {
for ( size_t k = 0; k < numTris*3; ++k) {
indices[indexOffset++] = static_cast<unsigned long>(pShort[k]) +
static_cast<unsigned long>(offset);
}
}
ibuf->unlock();
currentOffset = nextOffset;
}
}
bool MaterialVertexBuffer::setSubMeshColors(
EntityMaterial* entity,
unsigned short mesh_index,
size_t ui32VertexColorCount,
const float* pVertexColorArray) const
{
if(entity->getOgreEntity() == NULL)
{
m_rKernelContext.getLogManager() << LogLevel_Error << "Can't set colors : no Entity found!\n";
return false;
}
Ogre::Mesh* mesh = entity->getOgreEntity()->getMesh().get();
if(mesh == NULL || mesh_index >= mesh->getNumSubMeshes())
{
m_rKernelContext.getLogManager() << LogLevel_Error << "Can't set colors : no Mesh found!\n";
return false;
}
Ogre::SubMesh* submesh = mesh->getSubMesh( mesh_index );
if(submesh->useSharedVertices)
{
m_rKernelContext.getLogManager() << LogLevel_Error << "Can't set colors : vertices are shared and thus not accessible from SubMesh!\n";
return false;
}
else
{
if(ui32VertexColorCount != submesh->vertexData->vertexCount)
{
m_rKernelContext.getLogManager() << LogLevel_Error << "Can't set colors : vertex count mismatch!\n";
return false;
}
//get pointer to submesh vertex data
Ogre::VertexData* vertex_data = submesh->vertexData;
//get pointer to DIFFUSE element
const Ogre::VertexElement* difElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_DIFFUSE);
if(difElem == NULL)
{
m_rKernelContext.getLogManager() << LogLevel_Error << "Can't set colors : no colours_diffuse element found in vertex buffer!\n";
return false;
}
//convert color to current RenderSystem's format
Ogre::VertexElementType type = difElem->getType();
//retrieve VB for DIFFUSE element
Ogre::HardwareVertexBufferSharedPtr vbuf = vertex_data->vertexBufferBinding->getBuffer(difElem->getSource());
//lock VB for reading
unsigned char* color = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_NORMAL));
// There is _no_ baseVertexPointerToElement() which takes an Ogre::Real or a double
// as second argument. So make it float, to avoid trouble when Ogre::Real will
// be comiled/typedefed as double:
// Ogre::Real* pReal;
Ogre::RGBA* pRGBA;
Ogre::ColourValue colour;
for( size_t j = 0; j < vertex_data->vertexCount; ++j, color += vbuf->getVertexSize())
{
//get pointer to RGBA DIFFUSE data
difElem->baseVertexPointerToElement(color, &pRGBA);
colour.r = pVertexColorArray[4*j];
colour.g = pVertexColorArray[4*j+1];
colour.b = pVertexColorArray[4*j+2];
colour.a = pVertexColorArray[4*j+3];
//convert color from RGBA floats to a single ARGB uint32
if(type == Ogre::VET_COLOUR_ARGB) //D3D format
{
*pRGBA = colour.getAsARGB();
}
else /*if type == OGRE::VET_COLOUR_ABGR)*/ //GL format
{
*pRGBA = colour.getAsABGR();
}
}
//unlock VB
vbuf->unlock();
}
return true;
}
void PhysicsManager::getMeshInformation(Ogre::MeshPtr mesh,size_t &vertex_count,Vector3* &vertices, size_t &index_count, unsigned* &indices, const Ogre::Vector3 &position, const Ogre::Quaternion &orient,const Ogre::Vector3 &scale)
{
vertex_count = index_count = 0;
bool added_shared = false;
size_t current_offset = vertex_count;
size_t shared_offset = vertex_count;
size_t next_offset = vertex_count;
size_t index_offset = index_count;
size_t prev_vert = vertex_count;
size_t prev_ind = index_count;
// Calculate how many vertices and indices we're going to need
for(int i = 0;i < mesh->getNumSubMeshes();i++)
{
SubMesh* submesh = mesh->getSubMesh(i);
// We only need to add the shared vertices once
if(submesh->useSharedVertices)
{
if(!added_shared)
{
VertexData* vertex_data = mesh->sharedVertexData;
vertex_count += vertex_data->vertexCount;
added_shared = true;
}
}
else
{
VertexData* vertex_data = submesh->vertexData;
vertex_count += vertex_data->vertexCount;
}
// Add the indices
Ogre::IndexData* index_data = submesh->indexData;
index_count += index_data->indexCount;
}
// Allocate space for the vertices and indices
vertices = new Vector3[vertex_count];
indices = new unsigned[index_count];
added_shared = false;
// Run through the submeshes again, adding the data into the arrays
for(int i = 0;i < mesh->getNumSubMeshes();i++)
{
SubMesh* submesh = mesh->getSubMesh(i);
Ogre::VertexData* vertex_data = submesh->useSharedVertices ? mesh->sharedVertexData : submesh->vertexData;
if((!submesh->useSharedVertices)||(submesh->useSharedVertices && !added_shared))
{
if(submesh->useSharedVertices)
{
added_shared = true;
shared_offset = current_offset;
}
const Ogre::VertexElement* posElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf = vertex_data->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
Ogre::Real* pReal;
for(size_t j = 0; j < vertex_data->vertexCount; ++j, vertex += vbuf->getVertexSize())
{
posElem->baseVertexPointerToElement(vertex, &pReal);
Vector3 pt;
pt.x = (*pReal++);
pt.y = (*pReal++);
pt.z = (*pReal++);
pt = (orient * (pt * scale)) + position;
vertices[current_offset + j].x = pt.x;
vertices[current_offset + j].y = pt.y;
vertices[current_offset + j].z = pt.z;
}
vbuf->unlock();
next_offset += vertex_data->vertexCount;
}
Ogre::IndexData* index_data = submesh->indexData;
size_t numTris = index_data->indexCount / 3;
unsigned short* pShort;
unsigned int* pInt;
Ogre::HardwareIndexBufferSharedPtr ibuf = index_data->indexBuffer;
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
if (use32bitindexes) pInt = static_cast<unsigned int*>(ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
else pShort = static_cast<unsigned short*>(ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
for(size_t k = 0; k < numTris; ++k)
{
size_t offset = (submesh->useSharedVertices)?shared_offset:current_offset;
unsigned int vindex = use32bitindexes? *pInt++ : *pShort++;
indices[index_offset + 0] = vindex + offset;
vindex = use32bitindexes? *pInt++ : *pShort++;
indices[index_offset + 1] = vindex + offset;
vindex = use32bitindexes? *pInt++ : *pShort++;
indices[index_offset + 2] = vindex + offset;
index_offset += 3;
}
ibuf->unlock();
current_offset = next_offset;
}
}
/* -----------------------------------------------------------------------
| the function describe retrieve vertexbuffer from Ogre entity :
| (Ref:http://www.ogre3d.org/tikiwiki/tiki-index.php?page=RetrieveVertexData)
|
| @prama in : Ogre entity
| @pamra out : vertex buffer, size of vertexbuffer, vertex indices, sizeof vertex indices
----------------------------------------------------------------------- */
void
getVertexBuffer(Ogre::Entity* ent, void* &vertices, size_t& vertexCount, void* &indices, size_t& indexCount)
{
bool added_shared = false;
size_t current_offset = 0;
size_t shared_offset = 0;
size_t next_offset = 0;
size_t index_offset = 0;
vertexCount = indexCount = 0;
const Ogre::MeshPtr& mesh = ent->getMesh();
// Calculate vertexCount, indexCount
for ( Ogre::ushort i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* subMesh = mesh->getSubMesh(i);
if (subMesh->useSharedVertices)
{
if( !added_shared )
{
vertexCount += mesh->sharedVertexData->vertexCount;
added_shared = true;
}
vertexCount += mesh->sharedVertexData->vertexCount;
}
else
vertexCount += subMesh->vertexData->vertexCount;
indexCount += subMesh->indexData->indexCount;
}
// Alloc vertices, indices
vertices = new Ogre::Vector3[ vertexCount ];
indices = new Ogre::ulong[ indexCount ];
added_shared = false;
// Assign vertices data, indices data
for (Ogre::ushort i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* subMesh = mesh->getSubMesh(i);
Ogre::VertexData* vertexData = subMesh->useSharedVertices ? mesh->sharedVertexData : subMesh->vertexData;
if ((!subMesh->useSharedVertices) || (subMesh->useSharedVertices && !added_shared))
{
if(subMesh->useSharedVertices)
{
added_shared = true;
shared_offset = current_offset;
}
// Retrieve vertices
const Ogre::VertexElement* posElem = vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf = vertexData->vertexBufferBinding->getBuffer(posElem->getSource());
Ogre::uchar* vertex = static_cast<Ogre::uchar*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
Ogre::Real* data;
for (size_t j = 0 ; j < vertexData->vertexCount ; ++j, vertex += vbuf->getVertexSize())
{
posElem->baseVertexPointerToElement(vertex, &data);
Ogre::Vector3 origin(data[0], data[1], data[2]);
// ((Ogre::Vector3*)vertices)[ current_offset + j ] = (orient * (origin * scale)) + position;
((Ogre::Vector3*)vertices)[ current_offset + j ] = origin;
} // End for
vbuf->unlock();
next_offset += vertexData->vertexCount;
} // End if
// Retrieve indices
Ogre::IndexData* indexData = subMesh->indexData;
size_t trisCount = indexData->indexCount / 3;
Ogre::HardwareIndexBufferSharedPtr ibuf = indexData->indexBuffer;
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
void* index = (ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
Ogre::ulong offset = (subMesh->useSharedVertices) ? shared_offset : current_offset;
for (Ogre::ulong k = 0; k < trisCount * 3; ++k)
{
if ( use32bitindexes )
((Ogre::ulong*)indices)[ index_offset++ ] = ((Ogre::ulong*)index)[ k + offset ];
else
((Ogre::ulong*)indices)[ index_offset++ ] = ((Ogre::ushort*)index)[ k + offset ];
}
ibuf->unlock();
current_offset = next_offset;
} // End for
}
Mesh loadMesh(const std::string& meshName)
{
Mesh result;
bool addedShared = false;
size_t currentOffset = 0;
size_t sharedOffset = 0;
size_t nextOffset = 0;
size_t indexOffset = 0;
const v3 scale = v3::UNIT_SCALE;
const v3 position = v3::ZERO;
const qv4 orientation = qv4::IDENTITY;
Ogre::MeshManager* mm = Ogre::MeshManager::getSingletonPtr();
if (! mm)
{
initOgreForMeshLoading();
mm = Ogre::MeshManager::getSingletonPtr();
}
Ogre::MeshPtr mesh = mm->load(meshName, "General");
// Calculate how many result.mVertices and result.mIndices we're going to need
for (unsigned short i=0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* subMesh = mesh->getSubMesh(i);
// We only need to add the shared result.mVertices once
if (subMesh->useSharedVertices)
{
if (!addedShared)
{
result.mVertexCount += mesh->sharedVertexData->vertexCount;
addedShared = true;
}
}
else
{
result.mVertexCount += subMesh->vertexData->vertexCount;
}
result.mIndexCount += subMesh->indexData->indexCount;
}
result.mVertices.reset(new v3[result.mVertexCount]);
result.mIndices.reset(new u32[result.mIndexCount]);
addedShared = false;
// Run through the sub-meshes again, adding the data into the arrays
for (unsigned short i=0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* subMesh = mesh->getSubMesh(i);
Ogre::VertexData* vertexData = subMesh->useSharedVertices ? mesh->sharedVertexData : subMesh->vertexData;
if((!subMesh->useSharedVertices) || (subMesh->useSharedVertices && !addedShared))
{
if(subMesh->useSharedVertices)
{
addedShared = true;
sharedOffset = currentOffset;
}
const Ogre::VertexElement* posElem =
vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf =
vertexData->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
// There is _no_ baseVertexPointerToElement() which takes an Ogre::Real or a double
// as second argument. So make it float, to avoid trouble when Ogre::Real will
// be compiled/typedefed as double:
float* pReal;
for( size_t j = 0; j < vertexData->vertexCount; ++j, vertex += vbuf->getVertexSize())
{
posElem->baseVertexPointerToElement(vertex, &pReal);
v3 pt(pReal[0], pReal[1], pReal[2]);
result.mVertices[currentOffset + j] = (orientation * (pt * scale)) + position;
}
vbuf->unlock();
nextOffset += vertexData->vertexCount;
}
Ogre::IndexData* index_data = subMesh->indexData;
size_t numTris = index_data->indexCount / 3;
Ogre::HardwareIndexBufferSharedPtr ibuf = index_data->indexBuffer;
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
unsigned long* pLong = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned short* pShort = reinterpret_cast<unsigned short*>(pLong);
size_t offset = (subMesh->useSharedVertices)? sharedOffset : currentOffset;
if (use32bitindexes)
{
for (size_t k = 0; k < numTris*3; ++k)
{
result.mIndices[indexOffset++] = pLong[k] + static_cast<unsigned long>(offset);
}
}
else
{
for (size_t k = 0; k < numTris*3; ++k)
{
result.mIndices[indexOffset++] = static_cast<unsigned long>(pShort[k]) + static_cast<unsigned long>(offset);
}
}
ibuf->unlock();
currentOffset = nextOffset;
}
return result;
}
void GetTrianglesFromMesh(Ogre::Mesh* mesh, std::vector<float3>& dest)
{
dest.clear();
try
{
for(uint i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* submesh = mesh->getSubMesh(i);
Ogre::VertexData* vertex_data = submesh->useSharedVertices ? mesh->sharedVertexData : submesh->vertexData;
const Ogre::VertexElement* posElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf = vertex_data->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertices = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
size_t vertexSize = vbuf->getVertexSize();
float* pReal = 0;
Ogre::IndexData* index_data = submesh->indexData;
size_t numTris = index_data->indexCount / 3;
Ogre::HardwareIndexBufferSharedPtr ibuf = index_data->indexBuffer;
u32* pLong = static_cast<u32*>(ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
u16* pShort = reinterpret_cast<u16*>(pLong);
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
if (use32bitindexes)
{
for(size_t k = 0; k < numTris * 3; k += 3)
{
uint i1 = pLong[k];
uint i2 = pLong[k+1];
uint i3 = pLong[k+2];
posElem->baseVertexPointerToElement(vertices + i1 * vertexSize, &pReal);
dest.push_back(float3(pReal[0], pReal[1], pReal[2]));
posElem->baseVertexPointerToElement(vertices + i2 * vertexSize, &pReal);
dest.push_back(float3(pReal[0], pReal[1], pReal[2]));
posElem->baseVertexPointerToElement(vertices + i3 * vertexSize, &pReal);
dest.push_back(float3(pReal[0], pReal[1], pReal[2]));
}
}
else
{
for(size_t k = 0; k < numTris * 3; k += 3)
{
uint i1 = pShort[k];
uint i2 = pShort[k+1];
uint i3 = pShort[k+2];
posElem->baseVertexPointerToElement(vertices + i1 * vertexSize, &pReal);
dest.push_back(float3(pReal[0], pReal[1], pReal[2]));
posElem->baseVertexPointerToElement(vertices + i2 * vertexSize, &pReal);
dest.push_back(float3(pReal[0], pReal[1], pReal[2]));
posElem->baseVertexPointerToElement(vertices + i3 * vertexSize, &pReal);
dest.push_back(float3(pReal[0], pReal[1], pReal[2]));
}
}
vbuf->unlock();
ibuf->unlock();
}
} catch(Ogre::Exception &e)
{
///\todo Fix Ogre to not allow meshes like this to be successfully created.
LogError("GetTrianglesFromMesh failed for mesh! Ogre threw an exception: " + QString(e.what()));
dest.clear();
}
}
PhysicsObject* PhysicsMgr::createConvexHull(String meshname,Ogre::Vector3 pos,Ogre::Vector3 scale)
{
bool newshape = false;
size_t vertex_count;
float* vertices;
size_t index_count;
vertex_count = index_count = 0;
bool added_shared = false;
size_t current_offset = vertex_count;
size_t shared_offset = vertex_count;
size_t next_offset = vertex_count;
size_t index_offset = index_count;
size_t prev_vert = vertex_count;
size_t prev_ind = index_count;
std::vector<Ogre::Vector3> vertVect;
btConvexShape *convexShape;
//btShapeHull* hull;
if(meshname=="CUBE"||meshname=="BOX")
{
return createCube(scale,pos);
}
if(mShapes.find(meshname)==mShapes.end())
{
newshape = true;
Ogre::MeshPtr mesh = Ogre::MeshManager::getSingletonPtr()->load(meshname,Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
// Calculate how many vertices and indices we're going to need
for(int i = 0;i < mesh->getNumSubMeshes();i++)
{
Ogre::SubMesh* submesh = mesh->getSubMesh(i);
// We only need to add the shared vertices once
if(submesh->useSharedVertices)
{
if(!added_shared)
{
Ogre::VertexData* vertex_data = mesh->sharedVertexData;
vertex_count += vertex_data->vertexCount;
added_shared = true;
}
}
else
{
Ogre::VertexData* vertex_data = submesh->vertexData;
vertex_count += vertex_data->vertexCount;
}
// Add the indices
Ogre::IndexData* index_data = submesh->indexData;
index_count += index_data->indexCount;
}
// Allocate space for the vertices and indices
int a = vertex_count;
vertices = new float[vertex_count*3];
added_shared = false;
// Run through the submeshes again, adding the data into the arrays
for(int i = 0;i < mesh->getNumSubMeshes();i++)
{
Ogre::SubMesh* submesh = mesh->getSubMesh(i);
Ogre::VertexData* vertex_data = submesh->useSharedVertices ? mesh->sharedVertexData : submesh->vertexData;
if((!submesh->useSharedVertices)||(submesh->useSharedVertices && !added_shared))
{
if(submesh->useSharedVertices)
{
added_shared = true;
shared_offset = current_offset;
}
const Ogre::VertexElement* posElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf = vertex_data->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
Ogre::Real* pReal;
for(size_t j = 0; j < vertex_data->vertexCount; ++j, vertex += vbuf->getVertexSize())
{
posElem->baseVertexPointerToElement(vertex, &pReal);
Ogre::Vector3 pt;
pt.x = (*pReal++);
pt.y = (*pReal++);
pt.z = (*pReal++);
bool skip = false;
// ignore duped verts
for(unsigned int i=0;i<vertVect.size();++i)
{
if(vertVect[i]==pt)
{
skip = true;
//std::cout<<"IGNORED!\n";
}
}
// skipping duped verts caused some kind of f-up, TOBEFIXED eventually
if(!skip)
{
vertices[current_offset + (j*3)] = pt.x*0.92f;
vertices[current_offset + (j*3) + 1] = pt.y*0.92f;
vertices[current_offset + (j*3) + 2] = pt.z*0.92f;
vertVect.push_back(pt);
}
}
vbuf->unlock();
next_offset += vertex_data->vertexCount;
}
}
convexShape = new btConvexHullShape(static_cast<btScalar*>(vertices),vertVect.size(),3*sizeof(btScalar));
//create a hull approximation
btConvexShape *finalShape = 0;
//std::cout<<"size: "<<vertVect.size()<<"\n";
// seemed kinda iffy?
//if(vertVect.size()>75)
//{
// hull = new btShapeHull(convexShape);
// btScalar margin = convexShape->getMargin();
// hull->buildHull(margin);
// //btConvexHullShape* simplifiedConvexShape = new btConvexHullShape(hull->getVertexPointer(),hull->numVertices());
//
// btConvexHullShape* simplifiedConvexShape = new btConvexHullShape();
// for (int i=0;i<hull->numVertices();i++)
// {
// btVector3 vect = hull->getVertexPointer()[i]*0.9;
// std::cout<<"Vert: "<<vect.x()<<" "<<vect.y()<<" "<<vect.z()<<"\n";
// simplifiedConvexShape->addPoint(vect);
// }
// mShapes[meshname] = (simplifiedConvexShape);
// finalShape = simplifiedConvexShape;
//}
//else
//{
mShapes[meshname] = (convexShape);
finalShape = convexShape;
//}
}
//finalShape->setMargin(0.f);
btVector3 localInertia(0,0,0);
mShapes[meshname]->calculateLocalInertia(180.f,localInertia);
btRigidBody* actor = new btRigidBody(180.f,0,mShapes[meshname],localInertia);
actor->setWorldTransform(btTransform(btQuaternion::getIdentity(),btVector3(pos.x,pos.y,pos.z)));
actor->setRestitution(0.f);
actor->setFriction(0.8f);
//actor->setAnisotropicFriction(btVector3(0.3f,0.3f,0.3f));
actor->setDamping(0.2f,0.7f);
dynamic_cast<btDiscreteDynamicsWorld*>(mDynamicsWorld)->addRigidBody(actor,COLLISION_GROUP_1,COLLISION_GROUP_1);
mObjects.push_back(new PhysicsObject(actor,mDynamicsWorld));
if(newshape)
{
delete[] vertices;
//if(vertVect.size()>75)
//{
// delete hull;
// delete convexShape;
//}
}
return mObjects[mObjects.size()-1];
}
// Get the mesh information for the given mesh.
// Code found on this forum link: http://www.ogre3d.org/wiki/index.php/RetrieveVertexData
void CollisionTools::GetMeshInformation(const Ogre::MeshPtr mesh,
size_t &vertex_count,
Ogre::Vector3* &vertices,
size_t &index_count,
Ogre::uint32* &indices,
const Ogre::Vector3 &position,
const Ogre::Quaternion &orient,
const Ogre::Vector3 &scale)
{
bool added_shared = false;
size_t current_offset = 0;
size_t shared_offset = 0;
size_t next_offset = 0;
size_t index_offset = 0;
vertex_count = index_count = 0;
// Calculate how many vertices and indices we're going to need
for (unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* submesh = mesh->getSubMesh( i );
// We only need to add the shared vertices once
if(submesh->useSharedVertices)
{
if( !added_shared )
{
vertex_count += mesh->sharedVertexData->vertexCount;
added_shared = true;
}
}
else
{
vertex_count += submesh->vertexData->vertexCount;
}
// Add the indices
index_count += submesh->indexData->indexCount;
}
// Allocate space for the vertices and indices
vertices = new Ogre::Vector3[vertex_count];
indices = new Ogre::uint32[index_count];
added_shared = false;
// Run through the submeshes again, adding the data into the arrays
for ( unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* submesh = mesh->getSubMesh(i);
Ogre::VertexData* vertex_data = submesh->useSharedVertices ? mesh->sharedVertexData : submesh->vertexData;
if((!submesh->useSharedVertices)||(submesh->useSharedVertices && !added_shared))
{
if(submesh->useSharedVertices)
{
added_shared = true;
shared_offset = current_offset;
}
const Ogre::VertexElement* posElem =
vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf =
vertex_data->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertex =
static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
// There is _no_ baseVertexPointerToElement() which takes an Ogre::Ogre::Real or a double
// as second argument. So make it float, to avoid trouble when Ogre::Ogre::Real will
// be comiled/typedefed as double:
// Ogre::Ogre::Real* pOgre::Real;
float* pReal;
for( size_t j = 0; j < vertex_data->vertexCount; ++j, vertex += vbuf->getVertexSize())
{
posElem->baseVertexPointerToElement(vertex, &pReal);
Ogre::Vector3 pt(pReal[0], pReal[1], pReal[2]);
vertices[current_offset + j] = (orient * (pt * scale)) + position;
}
vbuf->unlock();
next_offset += vertex_data->vertexCount;
}
Ogre::IndexData* index_data = submesh->indexData;
size_t numTris = index_data->indexCount / 3;
Ogre::HardwareIndexBufferSharedPtr ibuf = index_data->indexBuffer;
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
Ogre::uint32* pLong = static_cast<Ogre::uint32*>(ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned short* pShort = reinterpret_cast<unsigned short*>(pLong);
size_t offset = (submesh->useSharedVertices)? shared_offset : current_offset;
if ( use32bitindexes )
{
for ( size_t k = 0; k < numTris*3; ++k)
{
indices[index_offset++] = pLong[k] + static_cast<Ogre::uint32>(offset);
}
}
else
{
for ( size_t k = 0; k < numTris*3; ++k)
{
indices[index_offset++] = static_cast<Ogre::uint32>(pShort[k]) +
static_cast<Ogre::uint32>(offset);
}
}
ibuf->unlock();
current_offset = next_offset;
}
}
//------------------------------------------------------------------------------------------------
void VertexIndexToShape::addAnimatedVertexData(const Ogre::VertexData *vertex_data,
const Ogre::VertexData *blend_data,
const Ogre::Mesh::IndexMap *indexMap)
{
// Get the bone index element
assert(vertex_data);
const Ogre::VertexData *data = blend_data;
const unsigned int prev_size = mVertexCount;
mVertexCount += (unsigned int)data->vertexCount;
Ogre::Vector3 *tmp_vert = new Ogre::Vector3[mVertexCount];
if (mVertexBuffer)
{
memcpy(tmp_vert, mVertexBuffer, sizeof(Ogre::Vector3) * prev_size);
delete[] mVertexBuffer;
}
mVertexBuffer = tmp_vert;
// Get the positional buffer element
{
const Ogre::VertexElement *posElem = data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
assert(posElem);
Ogre::HardwareVertexBufferSharedPtr vbuf = data->vertexBufferBinding->getBuffer(posElem->getSource());
const unsigned int vSize = (unsigned int)vbuf->getVertexSize();
unsigned char *vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
float *pReal;
Ogre::Vector3 * curVertices = &mVertexBuffer[prev_size];
const unsigned int vertexCount = (unsigned int)data->vertexCount;
for (unsigned int j = 0; j < vertexCount; ++j)
{
posElem->baseVertexPointerToElement(vertex, &pReal);
vertex += vSize;
curVertices->x = (*pReal++);
curVertices->y = (*pReal++);
curVertices->z = (*pReal++);
*curVertices = mTransform * (*curVertices);
curVertices++;
}
vbuf->unlock();
}
{
const Ogre::VertexElement *bneElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_BLEND_INDICES);
assert(bneElem);
Ogre::HardwareVertexBufferSharedPtr vbuf = vertex_data->vertexBufferBinding->getBuffer(bneElem->getSource());
const unsigned int vSize = (unsigned int)vbuf->getVertexSize();
unsigned char *vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned char *pBone = NULL;
if (!mBoneIndex)
{
mBoneIndex = new BoneIndex();
}
Ogre::Vector3 *curVertices = &mVertexBuffer[prev_size];
const unsigned int vertexCount = (unsigned int)vertex_data->vertexCount;
for (unsigned int j = 0; j < vertexCount; ++j)
{
bneElem->baseVertexPointerToElement(vertex, &pBone);
vertex += vSize;
const unsigned char currBone = (indexMap) ? (*indexMap)[*pBone] : *pBone;
const BoneIndex::iterator i = mBoneIndex->find(currBone);
Vector3Array *l = NULL;
if (i == mBoneIndex->end())
{
l = new Vector3Array;
mBoneIndex->insert(BoneKeyIndex(currBone, l));
}
else
{
l = i->second;
}
l->push_back(*curVertices);
curVertices++;
}
vbuf->unlock();
}
}
void RigidObject::extractMeshPositions(const Ogre::Mesh *const mesh) {
bool added_shared = false;
size_t current_offset = 0;
size_t shared_offset = 0;
size_t next_offset = 0;
n_positions_ = 0;
// Calculate how many vertices and indices we're going to need
for (unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i) {
Ogre::SubMesh *submesh = mesh->getSubMesh(i);
// We only need to add the shared vertices once
if (submesh->useSharedVertices) {
if (!added_shared) {
n_positions_ += mesh->sharedVertexData->vertexCount;
added_shared = true;
}
} else {
n_positions_ += submesh->vertexData->vertexCount;
}
}
// Allocate space for the vertices
positions_.resize(3 * n_positions_);
added_shared = false;
// Run through the submeshes again, adding the data into the vector
for (unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i) {
Ogre::SubMesh *submesh = mesh->getSubMesh(i);
Ogre::VertexData *vertex_data = submesh->useSharedVertices
? mesh->sharedVertexData
: submesh->vertexData;
if ((!submesh->useSharedVertices) ||
(submesh->useSharedVertices && !added_shared)) {
if (submesh->useSharedVertices) {
added_shared = true;
shared_offset = current_offset;
}
const Ogre::VertexElement *posElem =
vertex_data->vertexDeclaration->findElementBySemantic(
Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf =
vertex_data->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char *vertex = static_cast<unsigned char *>(
vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
// There is _no_ baseVertexPointerToElement() which takes an Ogre::Real or
// a double
// as second argument. So make it float, to avoid trouble when Ogre::Real
// will
// be compiled/typedefed as double:
// Ogre::Real* pReal;
float *pReal;
for (size_t j = 0; j < vertex_data->vertexCount;
++j, vertex += vbuf->getVertexSize()) {
posElem->baseVertexPointerToElement(vertex, &pReal);
Ogre::Vector3 pt(pReal[0], pReal[1], pReal[2]);
// vertices[current_offset + j] = (orient * (pt * scale)) +
// position;
size_t IND = 3 * (current_offset + j);
positions_.at(IND) = pt.x;
positions_.at(IND + 1) = pt.y;
// positions_.at(IND+2) = -pt.z; // flip z
positions_.at(IND + 2) = pt.z;
}
vbuf->unlock();
next_offset += vertex_data->vertexCount;
}
}
}
void OgreMeshAsset::CreateKdTree()
{
meshData.Clear();
normals.clear();
uvs.clear();
subMeshTriangleCounts.clear();
for(unsigned short i = 0; i < ogreMesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh *submesh = ogreMesh->getSubMesh(i);
assert(submesh);
Ogre::VertexData *vertexData = submesh->useSharedVertices ? ogreMesh->sharedVertexData : submesh->vertexData;
assert(vertexData);
const Ogre::VertexElement *posElem = vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
if (!posElem)
{
subMeshTriangleCounts.push_back(0);
continue; // No position element. Ignore this submesh.
}
Ogre::HardwareVertexBufferSharedPtr vbufPos = vertexData->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char *pos = (unsigned char*)vbufPos->lock(Ogre::HardwareBuffer::HBL_READ_ONLY);
assert(pos);
size_t posOffset = posElem->getOffset();
size_t posSize = vbufPos->getVertexSize();
// Texcoord element is not mandatory
unsigned char *texCoord = 0;
size_t texOffset = 0;
size_t texSize = 0;
Ogre::HardwareVertexBufferSharedPtr vbufTex;
const Ogre::VertexElement *texElem = vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_TEXTURE_COORDINATES);
if (texElem)
{
vbufTex = vertexData->vertexBufferBinding->getBuffer(texElem->getSource());
// Check if the texcoord buffer is different than the position buffer, in that case lock it separately
if (vbufTex != vbufPos)
texCoord = static_cast<unsigned char*>(vbufTex->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
else
texCoord = pos;
texOffset = texElem->getOffset();
texSize = vbufTex->getVertexSize();
}
Ogre::IndexData *indexData = submesh->indexData;
Ogre::HardwareIndexBufferSharedPtr ibuf = indexData->indexBuffer;
u32 *pLong = (u32*)ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY);
u16 *pShort = (u16*)pLong;
const bool use32BitIndices = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
for(unsigned j = 0; j+2 < indexData->indexCount; j += 3)
{
unsigned i0, i1, i2;
if (use32BitIndices)
{
i0 = pLong[j];
i1 = pLong[j+1];
i2 = pLong[j+2];
}
else
{
i0 = pShort[j];
i1 = pShort[j+1];
i2 = pShort[j+2];
}
float3 v0 = *(float3*)(pos + posOffset + i0 * posSize);
float3 v1 = *(float3*)(pos + posOffset + i1 * posSize);
float3 v2 = *(float3*)(pos + posOffset + i2 * posSize);
Triangle t(v0, v1, v2);
meshData.AddObjects(&t, 1);
if (texElem)
{
uvs.push_back(*((float2*)(texCoord + texOffset + i0 * texSize)));
uvs.push_back(*((float2*)(texCoord + texOffset + i1 * texSize)));
uvs.push_back(*((float2*)(texCoord + texOffset + i2 * texSize)));
}
float3 edge1 = v1 - v0;
float3 edge2 = v2 - v0;
float3 normal = edge1.Cross(edge2);
normal.Normalize();
normals.push_back(normal);
}
subMeshTriangleCounts.push_back((int)(indexData->indexCount / 3));
vbufPos->unlock();
if (!vbufTex.isNull() && vbufTex != vbufPos)
vbufTex->unlock();
ibuf->unlock();
}
{
PROFILE(OgreMeshAsset_KdTree_Build);
meshData.Build();
}
}
CompoundCollisionShape* CollisionShapeManager::PerformConvexDecomposition(const String& Name, Graphics::Mesh* ObjectMesh, Whole Depth, Real CPercent, Real PPercent, Boole UseAllSubmeshes)
{
//new submesh friendly code
Ogre::MeshPtr myMesh = ObjectMesh->_GetInternalMesh();
Ogre::SubMesh* subMesh = NULL;
Ogre::IndexData* indexData = NULL;
Ogre::VertexData* vertexData = NULL;
Boole use32bitindexes = false;
unsigned int currtriCount = 0;
unsigned int triCount = 0;
unsigned int vCount = 0;
unsigned int iCount = 0;
Whole VertPrevSize = 0;
Whole IndiPrevSize = 0;
Boole SharedVerts = myMesh->getSubMesh(0)->useSharedVertices;
Whole* VertPerSubMesh = NULL;
if(UseAllSubmeshes)
{
VertPerSubMesh = new Whole[myMesh->getNumSubMeshes()];
for( Whole X = 0 ; X < myMesh->getNumSubMeshes() ; X++ )
{
vCount += SharedVerts ? myMesh->sharedVertexData->vertexCount : myMesh->getSubMesh(X)->vertexData->vertexCount;
iCount += myMesh->getSubMesh(X)->indexData->indexCount;
VertPerSubMesh[X] = SharedVerts ? myMesh->sharedVertexData->vertexCount : myMesh->getSubMesh(X)->vertexData->vertexCount;
}
}else{
vCount += SharedVerts ? myMesh->sharedVertexData->vertexCount : myMesh->getSubMesh(0)->vertexData->vertexCount;
iCount += myMesh->getSubMesh(0)->indexData->indexCount;
}
Ogre::Vector3* vertices = new Ogre::Vector3[vCount];
unsigned int* indices = new unsigned int[iCount];
for( unsigned short int SubMeshIndex = 0 ; SubMeshIndex < myMesh->getNumSubMeshes() ; SubMeshIndex++ )
{
if( !UseAllSubmeshes && (SubMeshIndex > 0) )
break;
if( SharedVerts && (SubMeshIndex > 0) )
break;
subMesh = myMesh->getSubMesh(SubMeshIndex);
indexData = subMesh->indexData;
vertexData = SharedVerts ? myMesh->sharedVertexData : myMesh->getSubMesh(SubMeshIndex)->vertexData;
const Ogre::VertexElement* posElem = vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vBuffer = vertexData->vertexBufferBinding->getBuffer(posElem->getSource());
Ogre::HardwareIndexBufferSharedPtr iBuffer = indexData->indexBuffer;
currtriCount=indexData->indexCount/3;
triCount+=(indexData->indexCount/3);
unsigned char* vertex = static_cast<unsigned char*>(vBuffer->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
float* pReal = NULL;
for( size_t j = 0 ; j < vertexData->vertexCount ; j++, vertex += vBuffer->getVertexSize() )
{
posElem->baseVertexPointerToElement(vertex, &pReal);
vertices[j + VertPrevSize].x = *pReal++;
vertices[j + VertPrevSize].y = *pReal++;
vertices[j + VertPrevSize].z = *pReal++;
}
vBuffer->unlock();
size_t index_offset = 0;
use32bitindexes = (iBuffer->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
unsigned long* pLong = static_cast<unsigned long*>(iBuffer->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned short* pShort = reinterpret_cast<unsigned short*>(pLong);
if( use32bitindexes )
{
for (size_t k = 0; k < currtriCount*3; ++k)
{
if(SubMeshIndex > 0 && VertPerSubMesh) {
indices[index_offset+IndiPrevSize] = pLong[k] + VertPerSubMesh[SubMeshIndex];
}else{
indices[index_offset+IndiPrevSize] = pLong[k];
}
index_offset++;
}
}else{
for( size_t k = 0 ; k < currtriCount * 3 ; ++k )
{
if(SubMeshIndex > 0 && VertPerSubMesh) {
indices[index_offset+IndiPrevSize] = (static_cast<unsigned long>(pShort[k])) + VertPerSubMesh[SubMeshIndex];
}else{
indices[index_offset+IndiPrevSize] = static_cast<unsigned long>(pShort[k]);
}
index_offset++;
}
}
iBuffer->unlock();
VertPrevSize += vertexData->vertexCount;
IndiPrevSize += indexData->indexCount;
}
ConvexDecomposition::DecompDesc desc;
desc.mVcount = vertexData->vertexCount;
desc.mTcount = triCount;
desc.mVertices = &vertices[0].x;
desc.mIndices = &indices[0];
unsigned int maxv = 16;
float skinWidth = 0.0;
desc.mDepth = Depth;
desc.mCpercent = CPercent;
desc.mPpercent = PPercent;
desc.mMaxVertices = maxv;
desc.mSkinWidth = skinWidth;
Internal::MezzConvexDecomposition decomp;
desc.mCallback = &decomp;
ConvexBuilder cb(desc.mCallback);
cb.process(desc);
CompoundCollisionShape* compound = new CompoundCollisionShape(Name);
btTransform trans;
trans.setIdentity();
for (int i=0;i<decomp.m_convexShapes.size();i++)
{
std::stringstream namestream;
namestream << Name << "Child" << i;
Vector3 centroid(decomp.m_convexCentroids[i]);
ConvexHullCollisionShape* convexShape = new ConvexHullCollisionShape(namestream.str(),decomp.m_convexShapes[i]);
compound->AddChildShape(convexShape,centroid);
}
delete[] vertices;
delete[] indices;
delete[] VertPerSubMesh;
return compound;
}
void OgreMeshRay::GetMeshInformation(const Ogre::ManualObject* manual,
size_t& vertex_count, Ogre::Vector3*& vertices, size_t& index_count,
unsigned long*& indices, const Ogre::Vector3& position,
const Ogre::Quaternion& orient, const Ogre::Vector3& scale) {
std::vector<Ogre::Vector3> returnVertices;
std::vector<unsigned long> returnIndices;
unsigned long thisSectionStart = 0;
for (unsigned int i = 0, size = manual->getNumSections(); i < size; ++i) {
Ogre::ManualObject::ManualObjectSection* section = manual->getSection(
i);
Ogre::RenderOperation* renderOp = section->getRenderOperation();
std::vector<Ogre::Vector3> pushVertices;
//Collect the vertices
{
const Ogre::VertexElement* vertexElement =
renderOp->vertexData->vertexDeclaration->findElementBySemantic(
Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vertexBuffer =
renderOp->vertexData->vertexBufferBinding->getBuffer(
vertexElement->getSource());
char* verticesBuffer = static_cast<char*>(vertexBuffer->lock(
Ogre::HardwareBuffer::HBL_READ_ONLY));
float* positionArrayHolder;
thisSectionStart = returnVertices.size() + pushVertices.size();
pushVertices.reserve(renderOp->vertexData->vertexCount);
for (unsigned int j = 0; j < renderOp->vertexData->vertexCount;
++j) {
vertexElement->baseVertexPointerToElement(
verticesBuffer + j * vertexBuffer->getVertexSize(),
&positionArrayHolder);
Ogre::Vector3 vertexPos = Ogre::Vector3(positionArrayHolder[0],
positionArrayHolder[1], positionArrayHolder[2]);
vertexPos = (orient * (vertexPos * scale)) + position;
pushVertices.push_back(vertexPos);
}
vertexBuffer->unlock();
}
//Collect the indices
{
if (renderOp->useIndexes) {
Ogre::HardwareIndexBufferSharedPtr indexBuffer =
renderOp->indexData->indexBuffer;
if (indexBuffer.isNull()
|| renderOp->operationType
!= Ogre::RenderOperation::OT_TRIANGLE_LIST) {
//No triangles here, so we just drop the collected vertices and move along to the next section.
continue;
} else {
returnVertices.reserve(
returnVertices.size() + pushVertices.size());
returnVertices.insert(returnVertices.end(),
pushVertices.begin(), pushVertices.end());
}
unsigned int* pLong =
static_cast<unsigned int*>(indexBuffer->lock(
Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned short* pShort =
reinterpret_cast<unsigned short*>(pLong);
returnIndices.reserve(
returnIndices.size() + renderOp->indexData->indexCount);
for (size_t j = 0; j < renderOp->indexData->indexCount; ++j) {
unsigned long index;
//We also have got to remember that for a multi section object, each section has
//different vertices, so the indices will not be correct. To correct this, we
//have to add the position of the first vertex in this section to the index
//(At least I think so...)
if (indexBuffer->getType()
== Ogre::HardwareIndexBuffer::IT_32BIT)
index = static_cast<unsigned long>(pLong[j])
+ thisSectionStart;
else
index = static_cast<unsigned long>(pShort[j])
+ thisSectionStart;
returnIndices.push_back(index);
}
indexBuffer->unlock();
}
}
}
//Now we simply return the data.
index_count = returnIndices.size();
vertex_count = returnVertices.size();
vertices = new Ogre::Vector3[vertex_count];
for (unsigned long i = 0; i < vertex_count; ++i)
vertices[i] = returnVertices[i];
indices = new unsigned long[index_count];
for (unsigned long i = 0; i < index_count; ++i)
indices[i] = returnIndices[i];
//All done.
return;
}
mesh::mesh(const std::string &mn, const mat4 &tf, const world &_world):
/** Don't know if world() is the best thing to pass but it works for now **/
_mesh(NewtonMeshCreate(_world))
{
Ogre::MeshPtr meshPtr;
try
{
meshPtr = Ogre::MeshPtr(Ogre::MeshManager::getSingleton().load(mn,
Ogre::ResourceGroupManager::AUTODETECT_RESOURCE_GROUP_NAME));
}
catch(...)
{
return;
}
const Ogre::Mesh &mesh = *meshPtr;
NewtonMeshBeginFace(_mesh);
for (unsigned smi = 0; smi < mesh.getNumSubMeshes(); smi++) {
Ogre::SubMesh *subMesh = mesh.getSubMesh(smi);
Ogre::VertexData *vertexData =
(subMesh->useSharedVertices) ?
vertexData = mesh.sharedVertexData : vertexData = subMesh->vertexData;
Ogre::VertexDeclaration *vertexDecl = vertexData->vertexDeclaration;
const Ogre::VertexElement *element = vertexDecl->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vertexHVBSP =
vertexData->vertexBufferBinding->getBuffer(element->getSource());
unsigned char *vPtr = (unsigned char*)(vertexHVBSP->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
Ogre::IndexData *indexData = subMesh->indexData;
size_t numIndices = indexData->indexCount;
size_t numTris = numIndices / 3;
// get pointer!
Ogre::HardwareIndexBufferSharedPtr indexHIBSP = indexData->indexBuffer;
// 16 or 32 bit indices?
bool indicesAre32Bit = (indexHIBSP->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
unsigned long *longPtr = NULL;
unsigned short *shortPtr = NULL;
if (indicesAre32Bit)
longPtr = static_cast<unsigned long*>(
indexHIBSP->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
else
shortPtr = static_cast<unsigned short*>(
indexHIBSP->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
//now loop through the indices, getting polygon info!
int iOffset = 0;
for (size_t i = 0; i < numTris; i++) {
vec3 triVertices[3];
unsigned char *vOffset = NULL;
float *vertexPosPtr = NULL;
int idx = 0;
for (int j = 0; j < 3; j++) {
if (indicesAre32Bit)
idx = longPtr[iOffset + j];
else
idx = shortPtr[iOffset + j];
vOffset = vPtr + (idx * vertexHVBSP->getVertexSize());
element->baseVertexPointerToElement(vOffset, &vertexPosPtr);
triVertices[j].x = *vertexPosPtr; vertexPosPtr++;
triVertices[j].y = *vertexPosPtr; vertexPosPtr++;
triVertices[j].z = *vertexPosPtr; vertexPosPtr++;
triVertices[j] = tf * triVertices[j];
}
// _mesh, 3 vertices (triangle), (float = 4 bytes) * 3
// index = index of sub mesh (easy to recognize)
NewtonMeshAddFace(_mesh, 3, &triVertices[0].x, sizeof(float) * 3, smi);
iOffset += 3;
}
//unlock the buffers!
vertexHVBSP->unlock();
indexHIBSP->unlock();
}
NewtonMeshEndFace(_mesh);
}
btTriangleMesh* GameLibrary::ogreToBulletMesh(Ogre::MeshPtr mesh) {
btTriangleMesh* btMesh = new btTriangleMesh();
Ogre::Mesh::SubMeshIterator j = mesh->getSubMeshIterator();
while (j.hasMoreElements()) {
Ogre::SubMesh* submesh = j.getNext();
int idxStart = submesh->indexData->indexStart;
int nIdx = submesh->indexData->indexCount;
Ogre::HardwareIndexBuffer* idxBuffer
= submesh->indexData->indexBuffer.get();
Ogre::HardwareVertexBufferSharedPtr virtBuffer;
Ogre::VertexDeclaration* virtDecl;
if (submesh->useSharedVertices) {
virtDecl = mesh->sharedVertexData->vertexDeclaration;
assert(mesh->sharedVertexData->vertexBufferBinding->getBufferCount() > 0);
virtBuffer = mesh->sharedVertexData->vertexBufferBinding->getBuffer(0);
} else {
virtDecl = submesh->vertexData->vertexDeclaration;
assert(submesh->vertexData->vertexBufferBinding->getBufferCount() > 0);
virtBuffer = submesh->vertexData->vertexBufferBinding->getBuffer(0);
}
unsigned char* pVert = static_cast<unsigned char*>(virtBuffer->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
// need to lock the buffer since vertex data resides on GPU
// and we need synchronization
unsigned short* sindices = NULL;
unsigned long* lindices = NULL;
if (idxBuffer->getType() == Ogre::HardwareIndexBuffer::IT_16BIT) {
sindices = static_cast<unsigned short*>(idxBuffer->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
} else if (idxBuffer->getType() == Ogre::HardwareIndexBuffer::IT_32BIT) {
lindices = static_cast<unsigned long*>(idxBuffer->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
} else {
assert(true == false);
}
const Ogre::VertexElement* elm = virtDecl->findElementBySemantic(Ogre::VES_POSITION, 0);
int offset = elm->getOffset();
// assert(elm->getType() == VET_FLOAT3);
for (int k = idxStart; k < idxStart + nIdx; k += 3) {
unsigned int indices[3];
btVector3 vertices[3];
if (idxBuffer->getType() == Ogre::HardwareIndexBuffer::IT_16BIT) {
for (int l = 0; l < 3; ++l) {
indices[l] = sindices[k + l];
}
} else {
for (int l = 0; l < 3; ++l) {
indices[l] = lindices[k + l];
}
}
for (int l = 0; l < 3; ++l) { // for each vertex
Ogre::Real* posVert = (Ogre::Real*)(pVert + indices[l] * virtBuffer->getVertexSize() + offset);
for (int m = 0; m < 3; ++m) { // for each vertex component
vertices[l][m] = posVert[m];
}
}
btMesh->addTriangle(vertices[0], vertices[1], vertices[2]);
}
idxBuffer->unlock();
virtBuffer->unlock();
}
return btMesh;
}
void
PolyMousePicker::GetMeshInformation(
Ogre::Entity *entity,
size_t &vertex_count,
Ogre::Vector3* &vertices,
size_t &index_count,
Ogre::uint32* &indices,
const Ogre::Vector3 &position,
const Ogre::Quaternion &orient,
const Ogre::Vector3 &scale)
{
bool added_shared = false;
size_t current_offset = 0;
size_t shared_offset = 0;
size_t next_offset = 0;
size_t index_offset = 0;
vertex_count = index_count = 0;
Ogre::MeshPtr mesh = entity->getMesh();
bool useSoftwareBlendingVertices = entity->hasSkeleton();
if (useSoftwareBlendingVertices)
{
entity->_updateAnimation();
}
// Calculate how many vertices and indices we're going to need
for (unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* submesh = mesh->getSubMesh( i );
// We only need to add the shared vertices once
if(submesh->useSharedVertices)
{
if( !added_shared )
{
vertex_count += mesh->sharedVertexData->vertexCount;
added_shared = true;
}
}
else
{
vertex_count += submesh->vertexData->vertexCount;
}
// Add the indices
index_count += submesh->indexData->indexCount;
}
// Allocate space for the vertices and indices
vertices = new Ogre::Vector3[vertex_count];
indices = new Ogre::uint32[index_count];
added_shared = false;
// Run through the submeshes again, adding the data into the arrays
for ( unsigned short i = 0; i < mesh->getNumSubMeshes(); ++i)
{
Ogre::SubMesh* submesh = mesh->getSubMesh(i);
//----------------------------------------------------------------
// GET VERTEXDATA
//----------------------------------------------------------------
Ogre::VertexData* vertex_data;
//When there is animation:
if(useSoftwareBlendingVertices)
vertex_data = submesh->useSharedVertices ? entity->_getSkelAnimVertexData() : entity->getSubEntity(i)->_getSkelAnimVertexData();
else
vertex_data = submesh->useSharedVertices ? mesh->sharedVertexData : submesh->vertexData;
if((!submesh->useSharedVertices)||(submesh->useSharedVertices && !added_shared))
{
if(submesh->useSharedVertices)
{
added_shared = true;
shared_offset = current_offset;
}
const Ogre::VertexElement* posElem =
vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
Ogre::HardwareVertexBufferSharedPtr vbuf =
vertex_data->vertexBufferBinding->getBuffer(posElem->getSource());
unsigned char* vertex =
static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
// There is _no_ baseVertexPointerToElement() which takes an Ogre::Real or a double
// as second argument. So make it float, to avoid trouble when Ogre::Real will
// be comiled/typedefed as double:
// Ogre::Real* pReal;
float* pReal;
for( size_t j = 0; j < vertex_data->vertexCount; ++j, vertex += vbuf->getVertexSize())
{
posElem->baseVertexPointerToElement(vertex, &pReal);
Ogre::Vector3 pt(pReal[0], pReal[1], pReal[2]);
vertices[current_offset + j] = (orient * (pt * scale)) + position;
}
vbuf->unlock();
next_offset += vertex_data->vertexCount;
}
Ogre::IndexData* index_data = submesh->indexData;
size_t numTris = index_data->indexCount / 3;
Ogre::HardwareIndexBufferSharedPtr ibuf = index_data->indexBuffer;
bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
void* hwBuf = ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY);
size_t offset = (submesh->useSharedVertices)? shared_offset : current_offset;
size_t index_start = index_data->indexStart;
size_t last_index = numTris*3 + index_start;
if (use32bitindexes) {
Ogre::uint32* hwBuf32 = static_cast<Ogre::uint32*>(hwBuf);
for (size_t k = index_start; k < last_index; ++k)
{
indices[index_offset++] = hwBuf32[k] + static_cast<Ogre::uint32>( offset );
}
} else {
Ogre::uint16* hwBuf16 = static_cast<Ogre::uint16*>(hwBuf);
for (size_t k = index_start; k < last_index; ++k)
{
indices[ index_offset++ ] = static_cast<Ogre::uint32>( hwBuf16[k] ) +
static_cast<Ogre::uint32>( offset );
}
}
ibuf->unlock();
current_offset = next_offset;
}
}
