void GeomUtils::createSphere( const String& strName
, float radius
, int nRings, int nSegments
, bool bNormals
, bool bTexCoords)
{
MeshPtr pSphere = MeshManager::getSingleton().createManual(strName, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
SubMesh *pSphereVertex = pSphere->createSubMesh();
pSphere->sharedVertexData = new VertexData();
createSphere(pSphere->sharedVertexData, pSphereVertex->indexData
, radius
, nRings, nSegments
, bNormals // need normals
, bTexCoords // need texture co-ordinates
);
// Generate face list
pSphereVertex->useSharedVertices = true;
// the original code was missing this line:
pSphere->_setBounds( AxisAlignedBox( Vector3(-radius, -radius, -radius), Vector3(radius, radius, radius) ), false );
pSphere->_setBoundingSphereRadius(radius);
// this line makes clear the mesh is loaded (avoids memory leaks)
pSphere->load();
}
void SplineRoad::AddMesh(MeshPtr mesh, String sMesh, const AxisAlignedBox& aabox,
Entity** pEnt, SceneNode** pNode, String sEnd)
{
mesh->_setBounds(aabox);
mesh->_setBoundingSphereRadius((aabox.getMaximum()-aabox.getMinimum()).length()/2.0);
mesh->load();
unsigned short src, dest;
if (!mesh->suggestTangentVectorBuildParams(VES_TANGENT, src, dest))
mesh->buildTangentVectors(VES_TANGENT, src, dest);
*pEnt = mSceneMgr->createEntity("rd.ent"+sEnd, sMesh);
*pNode = mSceneMgr->getRootSceneNode()->createChildSceneNode("rd.node"+sEnd);
(*pNode)->attachObject(*pEnt);
(*pEnt)->setVisible(false); (*pEnt)->setCastShadows(false);
(*pEnt)->setVisibilityFlags(RV_Road);
}
//-----------------------------------------------------------------------------
MeshPtr ManualObject::convertToMesh(const String& meshName, const String& groupName)
{
if (mCurrentSection)
{
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
"You cannot call convertToMesh() whilst you are in the middle of "
"defining the object; call end() first.",
"ManualObject::convertToMesh");
}
if (mSectionList.empty())
{
OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
"No data defined to convert to a mesh.",
"ManualObject::convertToMesh");
}
MeshPtr m = MeshManager::getSingleton().createManual(meshName, groupName);
for (SectionList::iterator i = mSectionList.begin(); i != mSectionList.end(); ++i)
{
ManualObjectSection* sec = *i;
RenderOperation* rop = sec->getRenderOperation();
SubMesh* sm = m->createSubMesh();
sm->useSharedVertices = false;
sm->operationType = rop->operationType;
sm->setMaterialName(sec->getMaterialName(), groupName);
// Copy vertex data; replicate buffers too
sm->vertexData = rop->vertexData->clone(true);
// Copy index data; replicate buffers too; delete the default, old one to avoid memory leaks
// check if index data is present
if (rop->indexData)
{
// Copy index data; replicate buffers too; delete the default, old one to avoid memory leaks
OGRE_DELETE sm->indexData;
sm->indexData = rop->indexData->clone(true);
}
}
// update bounds
m->_setBounds(mAABB);
m->_setBoundingSphereRadius(mRadius);
m->load();
return m;
}
MeshPtr Tile::getMesh(std::string tileName)
{
// Create the overall mesh.
MeshPtr tileMesh = MeshManager::getSingleton().createManual(tileName, Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
// Add the tile as a submesh to mesh major.
this->_generateSubMesh(tileMesh);
/// Set bounding information (for culling)
tileMesh->_setBounds(AxisAlignedBox(-5,-5,-5,5,5,5));
tileMesh->_setBoundingSphereRadius(Math::Sqrt(3*5*5));
// Signal that the mesh has loaded.
tileMesh->load();
// Return finished mesh.
return tileMesh;
}
void GeomUtils::createCone(const Ogre::String& strName , float radius , float height, int nVerticesInBase)
{
MeshPtr pCone = MeshManager::getSingleton().createManual(strName, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
SubMesh *pConeVertex = pCone->createSubMesh();
pCone->sharedVertexData = new VertexData();
createCone(pCone->sharedVertexData, pConeVertex->indexData
, radius
, height
, nVerticesInBase);
// Generate face list
pConeVertex->useSharedVertices = true;
// the original code was missing this line:
pCone->_setBounds( AxisAlignedBox(
Vector3(-radius, 0, -radius),
Vector3(radius, height, radius) ), false );
pCone->_setBoundingSphereRadius(Math::Sqrt(height*height + radius*radius));
// this line makes clear the mesh is loaded (avoids memory leaks)
pCone->load();
}
Mesh *GrassLoader::generateGrass_SPRITE(PageInfo &page, GrassLayer *layer, float *grassPositions, unsigned int grassCount)
{
//Calculate the number of quads to be added
unsigned int quadCount;
quadCount = grassCount;
// check for overflows of the uint16's
unsigned int maxUInt16 = std::numeric_limits<uint16>::max();
if(grassCount > maxUInt16)
{
LogManager::getSingleton().logMessage("grass count overflow: you tried to use more than " + StringConverter::toString(maxUInt16) + " (thats the maximum) grass meshes for one page");
return 0;
}
if(quadCount > maxUInt16)
{
LogManager::getSingleton().logMessage("quad count overflow: you tried to use more than " + StringConverter::toString(maxUInt16) + " (thats the maximum) grass meshes for one page");
return 0;
}
//Create manual mesh to store grass quads
MeshPtr mesh = MeshManager::getSingleton().createManual(getUniqueID(), ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
SubMesh *subMesh = mesh->createSubMesh();
subMesh->useSharedVertices = false;
//Setup vertex format information
subMesh->vertexData = new VertexData;
subMesh->vertexData->vertexStart = 0;
subMesh->vertexData->vertexCount = 4 * quadCount;
VertexDeclaration* dcl = subMesh->vertexData->vertexDeclaration;
size_t offset = 0;
dcl->addElement(0, offset, VET_FLOAT3, VES_POSITION);
offset += VertexElement::getTypeSize(VET_FLOAT3);
dcl->addElement(0, offset, VET_FLOAT4, VES_NORMAL);
offset += VertexElement::getTypeSize(VET_FLOAT4);
dcl->addElement(0, offset, VET_COLOUR, VES_DIFFUSE);
offset += VertexElement::getTypeSize(VET_COLOUR);
dcl->addElement(0, offset, VET_FLOAT2, VES_TEXTURE_COORDINATES);
offset += VertexElement::getTypeSize(VET_FLOAT2);
//Populate a new vertex buffer with grass
HardwareVertexBufferSharedPtr vbuf = HardwareBufferManager::getSingleton()
.createVertexBuffer(offset, subMesh->vertexData->vertexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
float* pReal = static_cast<float*>(vbuf->lock(HardwareBuffer::HBL_DISCARD));
//Calculate size variance
float rndWidth = layer->maxWidth - layer->minWidth;
float rndHeight = layer->maxHeight - layer->minHeight;
float minY = Math::POS_INFINITY, maxY = Math::NEG_INFINITY;
float *posPtr = grassPositions; //Position array "iterator"
for (uint16 i = 0; i < grassCount; ++i)
{
//Get the x and z positions from the position array
float x = *posPtr++;
float z = *posPtr++;
//Calculate height
float y;
if (heightFunction){
y = heightFunction(x, z, heightFunctionUserData);
} else {
y = 0;
}
float x1 = (x - page.centerPoint.x);
float z1 = (z - page.centerPoint.z);
//Get the color at the grass position
uint32 color;
if (layer->colorMap)
color = layer->colorMap->getColorAt(x, z, layer->mapBounds);
else
color = 0xFFFFFFFF;
//Calculate size
float rnd = *posPtr++; //The same rnd value is used for width and height to maintain aspect ratio
float halfXScale = (layer->minWidth + rndWidth * rnd) * 0.5f;
float scaleY = (layer->minHeight + rndHeight * rnd);
//Randomly mirror grass textures
float uvLeft, uvRight;
if (*posPtr++ > 0.5f){
uvLeft = 0;
uvRight = 1;
} else {
uvLeft = 1;
uvRight = 0;
}
//Add vertices
*pReal++ = x1; *pReal++ = y; *pReal++ = z1; //center position
*pReal++ = -halfXScale; *pReal++ = scaleY; *pReal++ = 0; *pReal++ = 0; //normal (used to store relative corner positions)
*((uint32*)pReal++) = color; //color
*pReal++ = uvLeft; *pReal++ = 0; //uv
*pReal++ = x1; *pReal++ = y; *pReal++ = z1; //center position
*pReal++ = +halfXScale; *pReal++ = scaleY; *pReal++ = 0; *pReal++ = 0; //normal (used to store relative corner positions)
*((uint32*)pReal++) = color; //color
*pReal++ = uvRight; *pReal++ = 0; //uv
*pReal++ = x1; *pReal++ = y; *pReal++ = z1; //center position
*pReal++ = -halfXScale; *pReal++ = 0.0f; *pReal++ = 0; *pReal++ = 0; //normal (used to store relative corner positions)
*((uint32*)pReal++) = color; //color
*pReal++ = uvLeft; *pReal++ = 1; //uv
*pReal++ = x1; *pReal++ = y; *pReal++ = z1; //center position
*pReal++ = +halfXScale; *pReal++ = 0.0f; *pReal++ = 0; *pReal++ = 0; //normal (used to store relative corner positions)
*((uint32*)pReal++) = color; //color
*pReal++ = uvRight; *pReal++ = 1; //uv
//Update bounds
if (y < minY) minY = y;
if (y + scaleY > maxY) maxY = y + scaleY;
}
vbuf->unlock();
subMesh->vertexData->vertexBufferBinding->setBinding(0, vbuf);
//Populate index buffer
subMesh->indexData->indexStart = 0;
subMesh->indexData->indexCount = 6 * quadCount;
subMesh->indexData->indexBuffer = HardwareBufferManager::getSingleton()
.createIndexBuffer(HardwareIndexBuffer::IT_16BIT, subMesh->indexData->indexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY);
uint16* pI = static_cast<uint16*>(subMesh->indexData->indexBuffer->lock(HardwareBuffer::HBL_DISCARD));
for (uint16 i = 0; i < quadCount; ++i)
{
uint16 offset = i * 4;
*pI++ = 0 + offset;
*pI++ = 2 + offset;
*pI++ = 1 + offset;
*pI++ = 1 + offset;
*pI++ = 2 + offset;
*pI++ = 3 + offset;
}
subMesh->indexData->indexBuffer->unlock();
//subMesh->setBuildEdgesEnabled(autoEdgeBuildEnabled);
//Finish up mesh
AxisAlignedBox bounds(page.bounds.left - page.centerPoint.x, minY, page.bounds.top - page.centerPoint.z,
page.bounds.right - page.centerPoint.x, maxY, page.bounds.bottom - page.centerPoint.z);
mesh->_setBounds(bounds);
Vector3 temp = bounds.getMaximum() - bounds.getMinimum();
mesh->_setBoundingSphereRadius(temp.length() * 0.5f);
LogManager::getSingleton().setLogDetail(static_cast<LoggingLevel>(0));
mesh->setAutoBuildEdgeLists(autoEdgeBuildEnabled);
mesh->load();
LogManager::getSingleton().setLogDetail(LL_NORMAL);
//Apply grass material to mesh
subMesh->setMaterialName(layer->material->getName());
//Return the mesh
return mesh.getPointer();
}
void createSphere(const std::string& strName, const float r, const int nRings = 16, const int nSegments = 16)
{
MeshPtr pSphere = MeshManager::getSingleton().createManual(strName, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
SubMesh *pSphereVertex = pSphere->createSubMesh();
pSphere->sharedVertexData = new VertexData();
VertexData* vertexData = pSphere->sharedVertexData;
// define the vertex format
VertexDeclaration* vertexDecl = vertexData->vertexDeclaration;
size_t currOffset = 0;
// positions
vertexDecl->addElement(0, currOffset, VET_FLOAT3, VES_POSITION);
currOffset += VertexElement::getTypeSize(VET_FLOAT3);
// normals
vertexDecl->addElement(0, currOffset, VET_FLOAT3, VES_NORMAL);
currOffset += VertexElement::getTypeSize(VET_FLOAT3);
// two dimensional texture coordinates
vertexDecl->addElement(0, currOffset, VET_FLOAT2, VES_TEXTURE_COORDINATES, 0);
currOffset += VertexElement::getTypeSize(VET_FLOAT2);
// allocate the vertex buffer
vertexData->vertexCount = (nRings + 1) * (nSegments + 1);
HardwareVertexBufferSharedPtr vBuf = HardwareBufferManager::getSingleton().createVertexBuffer(vertexDecl->getVertexSize(0), vertexData->vertexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
VertexBufferBinding* binding = vertexData->vertexBufferBinding;
binding->setBinding(0, vBuf);
float* pVertex = static_cast<float*>(vBuf->lock(HardwareBuffer::HBL_DISCARD));
// allocate index buffer
pSphereVertex->indexData->indexCount = 6 * nRings * (nSegments + 1);
pSphereVertex->indexData->indexBuffer = HardwareBufferManager::getSingleton().createIndexBuffer(HardwareIndexBuffer::IT_16BIT, pSphereVertex->indexData->indexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
HardwareIndexBufferSharedPtr iBuf = pSphereVertex->indexData->indexBuffer;
unsigned short* pIndices = static_cast<unsigned short*>(iBuf->lock(HardwareBuffer::HBL_DISCARD));
float fDeltaRingAngle = (Math::PI / nRings);
float fDeltaSegAngle = (2 * Math::PI / nSegments);
unsigned short wVerticeIndex = 0;
// Generate the group of rings for the sphere
for (int ring = 0; ring <= nRings; ring++) {
float r0 = r * sinf(ring * fDeltaRingAngle);
float y0 = r * cosf(ring * fDeltaRingAngle);
// Generate the group of segments for the current ring
for (int seg = 0; seg <= nSegments; seg++) {
float x0 = r0 * sinf(seg * fDeltaSegAngle);
float z0 = r0 * cosf(seg * fDeltaSegAngle);
// Add one vertex to the strip which makes up the sphere
*pVertex++ = x0;
*pVertex++ = y0;
*pVertex++ = z0;
Vector3 vNormal = Vector3(x0, y0, z0).normalisedCopy();
*pVertex++ = vNormal.x;
*pVertex++ = vNormal.y;
*pVertex++ = vNormal.z;
*pVertex++ = (float)seg / (float)nSegments;
*pVertex++ = (float)ring / (float)nRings;
if (ring != nRings) {
// each vertex (except the last) has six indices pointing to it
*pIndices++ = wVerticeIndex + nSegments + 1;
*pIndices++ = wVerticeIndex;
*pIndices++ = wVerticeIndex + nSegments;
*pIndices++ = wVerticeIndex + nSegments + 1;
*pIndices++ = wVerticeIndex + 1;
*pIndices++ = wVerticeIndex;
wVerticeIndex++;
}
}; // end for seg
} // end for ring
// Unlock
vBuf->unlock();
iBuf->unlock();
// Generate face list
pSphereVertex->useSharedVertices = true;
// the original code was missing this line:
pSphere->_setBounds(AxisAlignedBox(Vector3(-r, -r, -r), Vector3(r, r, r)), false);
pSphere->_setBoundingSphereRadius(r);
// this line makes clear the mesh is loaded (avoids memory leaks)
pSphere->load();
}
Ogre::MeshPtr LodOutsideMarker::createConvexHullMesh(const String& meshName, const String& resourceGroupName)
{
// Based on the wiki sample: http://www.ogre3d.org/tikiwiki/tiki-index.php?page=Generating+A+Mesh
// Resource with given name should not exist!
assert(MeshManager::getSingleton().getByName(meshName).isNull());
generateHull(); // calculate mHull triangles.
// Convex hull can't be empty!
assert(!mHull.empty());
MeshPtr mesh = MeshManager::getSingleton().createManual(meshName, resourceGroupName, NULL);
SubMesh* subMesh = mesh->createSubMesh();
vector<Real>::type vertexBuffer;
vector<unsigned short>::type indexBuffer;
// 3 position/triangle * 3 Real/position
vertexBuffer.reserve(mHull.size() * 9);
// 3 index / triangle
indexBuffer.reserve(mHull.size() * 3);
int id=0;
// min & max position
Vector3 minBounds(std::numeric_limits<Real>::max(), std::numeric_limits<Real>::max(), std::numeric_limits<Real>::max());
Vector3 maxBounds(std::numeric_limits<Real>::min(), std::numeric_limits<Real>::min(), std::numeric_limits<Real>::min());
for (size_t i = 0; i < mHull.size(); i++) {
assert(!mHull[i].removed);
for(size_t n = 0; n < 3; n++){
indexBuffer.push_back(id++);
vertexBuffer.push_back(mHull[i].vertex[n]->position.x);
vertexBuffer.push_back(mHull[i].vertex[n]->position.y);
vertexBuffer.push_back(mHull[i].vertex[n]->position.z);
minBounds.x = std::min<Real>(minBounds.x, mHull[i].vertex[n]->position.x);
minBounds.y = std::min<Real>(minBounds.y, mHull[i].vertex[n]->position.y);
minBounds.z = std::min<Real>(minBounds.z, mHull[i].vertex[n]->position.z);
maxBounds.x = std::max<Real>(maxBounds.x, mHull[i].vertex[n]->position.x);
maxBounds.y = std::max<Real>(maxBounds.y, mHull[i].vertex[n]->position.y);
maxBounds.z = std::max<Real>(maxBounds.z, mHull[i].vertex[n]->position.z);
}
}
/// Create vertex data structure for 8 vertices shared between submeshes
mesh->sharedVertexData = new VertexData();
mesh->sharedVertexData->vertexCount = mHull.size() * 3;
/// Create declaration (memory format) of vertex data
VertexDeclaration* decl = mesh->sharedVertexData->vertexDeclaration;
size_t offset = 0;
// 1st buffer
decl->addElement(0, offset, VET_FLOAT3, VES_POSITION);
offset += VertexElement::getTypeSize(VET_FLOAT3);
/// Allocate vertex buffer of the requested number of vertices (vertexCount)
/// and bytes per vertex (offset)
HardwareVertexBufferSharedPtr vbuf =
HardwareBufferManager::getSingleton().createVertexBuffer(
offset, mesh->sharedVertexData->vertexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY);
/// Upload the vertex data to the card
vbuf->writeData(0, vbuf->getSizeInBytes(), &vertexBuffer[0], true);
/// Set vertex buffer binding so buffer 0 is bound to our vertex buffer
VertexBufferBinding* bind = mesh->sharedVertexData->vertexBufferBinding;
bind->setBinding(0, vbuf);
/// Allocate index buffer of the requested number of vertices (ibufCount)
HardwareIndexBufferSharedPtr ibuf = HardwareBufferManager::getSingleton().
createIndexBuffer(
HardwareIndexBuffer::IT_16BIT,
indexBuffer.size(),
HardwareBuffer::HBU_STATIC_WRITE_ONLY);
/// Upload the index data to the card
ibuf->writeData(0, ibuf->getSizeInBytes(), &indexBuffer[0], true);
/// Set parameters of the submesh
subMesh->useSharedVertices = true;
subMesh->indexData->indexBuffer = ibuf;
subMesh->indexData->indexCount = indexBuffer.size();
subMesh->indexData->indexStart = 0;
/// Set bounding information (for culling)
mesh->_setBounds(AxisAlignedBox(minBounds, maxBounds));
mesh->_setBoundingSphereRadius(maxBounds.distance(minBounds) / 2.0f);
/// Set material to transparent blue
subMesh->setMaterialName("Examples/TransparentBlue50");
/// Notify -Mesh object that it has been loaded
mesh->load();
return mesh;
}
static MeshPtr importObject(QDataStream &stream)
{
using namespace Ogre;
QVector4D bbMin, bbMax;
stream >> bbMin >> bbMax;
float distance, distanceSquared; // Here's a bug for you: writes "double"'s instead of floats
stream >> distanceSquared >> distance;
MeshPtr ogreMesh = MeshManager::getSingleton().createManual("conversion",
ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
int vertexCount, indexCount;
stream >> vertexCount >> indexCount;
VertexData *vertexData = new VertexData();
ogreMesh->sharedVertexData = vertexData;
LogManager::getSingleton().logMessage("Reading geometry...");
VertexDeclaration* decl = vertexData->vertexDeclaration;
VertexBufferBinding* bind = vertexData->vertexBufferBinding;
unsigned short bufferId = 0;
// Information for calculating bounds
Vector3 min = Vector3::ZERO, max = Vector3::UNIT_SCALE, pos = Vector3::ZERO;
Real maxSquaredRadius = -1;
bool firstVertex = true;
/*
Create a vertex definition for our buffer
*/
size_t offset = 0;
const VertexElement &positionElement = decl->addElement(bufferId, offset, VET_FLOAT3, VES_POSITION);
offset += VertexElement::getTypeSize(VET_FLOAT3);
const VertexElement &normalElement = decl->addElement(bufferId, offset, VET_FLOAT3, VES_NORMAL);
offset += VertexElement::getTypeSize(VET_FLOAT3);
// calculate how many vertexes there actually are
vertexData->vertexCount = vertexCount;
// Now create the vertex buffer
HardwareVertexBufferSharedPtr vbuf = HardwareBufferManager::getSingleton().
createVertexBuffer(offset, vertexData->vertexCount,
HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
// Bind it
bind->setBinding(bufferId, vbuf);
// Lock it
unsigned char *pVert = static_cast<unsigned char*>(vbuf->lock(HardwareBuffer::HBL_DISCARD));
unsigned char *pVertStart = pVert;
QVector<float> positions;
positions.reserve(vertexCount * 3);
// Iterate over all children (vertexbuffer entries)
for (int i = 0; i < vertexCount; ++i) {
float *pFloat;
QVector4D vertex;
stream >> vertex;
vertex.setZ(vertex.z() * -1);
/* Copy over the position */
positionElement.baseVertexPointerToElement(pVert, &pFloat);
*(pFloat++) = (float)vertex.x();
*(pFloat++) = (float)vertex.y();
*(pFloat++) = (float)vertex.z();
positions.append(vertex.x());
positions.append(vertex.y());
positions.append(vertex.z());
/* While we're at it, calculate the bounding sphere */
pos.x = vertex.x();
pos.y = vertex.y();
pos.z = vertex.z();
if (firstVertex) {
min = max = pos;
maxSquaredRadius = pos.squaredLength();
firstVertex = false;
} else {
min.makeFloor(pos);
max.makeCeil(pos);
maxSquaredRadius = qMax(pos.squaredLength(), maxSquaredRadius);
}
pVert += vbuf->getVertexSize();
}
// Set bounds
const AxisAlignedBox& currBox = ogreMesh->getBounds();
Real currRadius = ogreMesh->getBoundingSphereRadius();
if (currBox.isNull())
{
//do not pad the bounding box
ogreMesh->_setBounds(AxisAlignedBox(min, max), false);
ogreMesh->_setBoundingSphereRadius(Math::Sqrt(maxSquaredRadius));
}
else
{
AxisAlignedBox newBox(min, max);
newBox.merge(currBox);
//do not pad the bounding box
ogreMesh->_setBounds(newBox, false);
ogreMesh->_setBoundingSphereRadius(qMax(Math::Sqrt(maxSquaredRadius), currRadius));
}
/*
Create faces
*/
// All children should be submeshes
SubMesh* sm = ogreMesh->createSubMesh();
sm->setMaterialName("clippingMaterial");
sm->operationType = RenderOperation::OT_TRIANGLE_LIST;
sm->useSharedVertices = true;
// tri list
sm->indexData->indexCount = indexCount;
// Allocate space
HardwareIndexBufferSharedPtr ibuf = HardwareBufferManager::getSingleton().
createIndexBuffer(
HardwareIndexBuffer::IT_16BIT,
sm->indexData->indexCount,
HardwareBuffer::HBU_DYNAMIC,
false);
sm->indexData->indexBuffer = ibuf;
unsigned short *pShort = static_cast<unsigned short*>(ibuf->lock(HardwareBuffer::HBL_DISCARD));
QVector<EdgeData::Triangle> triangles(indexCount / 3);
for (int i = 0; i < indexCount / 3; ++i) {
quint16 i1, i2, i3;
stream >> i1 >> i2 >> i3;
*pShort++ = i1;
*pShort++ = i2;
*pShort++ = i3;
triangles[i].vertIndex[0] = i1;
triangles[i].vertIndex[1] = i2;
triangles[i].vertIndex[2] = i3;
}
/* Recalculate the vertex normals */
Vector4 *faceNormals = (Vector4*)_aligned_malloc(sizeof(Vector4) * triangles.size(), 16);
OptimisedUtil *util = OptimisedUtil::getImplementation();
util->calculateFaceNormals(positions.constData(),
triangles.data(),
faceNormals,
indexCount / 3);
// Iterate over all children (vertexbuffer entries)
pVert = pVertStart;
for (int i = 0; i < vertexCount; ++i) {
float *pFloat;
Vector3 normal = Vector3::ZERO;
int count = 0;
/* Search for all faces that use this vertex */
for (int j = 0; j < triangles.size(); ++j) {
if (triangles[j].vertIndex[0] == i
|| triangles[j].vertIndex[1] == i
|| triangles[j].vertIndex[2] == i) {
normal.x += faceNormals[j].x / faceNormals[j].w;
normal.y += faceNormals[j].y / faceNormals[j].w;
normal.z += faceNormals[j].z / faceNormals[j].w;
count++;
}
}
normal.normalise();
/* Copy over the position */
normalElement.baseVertexPointerToElement(pVert, &pFloat);
*(pFloat++) = normal.x;
*(pFloat++) = normal.y;
*(pFloat++) = normal.z;
pVert += vbuf->getVertexSize();
}
_aligned_free(faceNormals);
vbuf->unlock();
ibuf->unlock();
return ogreMesh;
}
void TunnelSlice::connect(TunnelSlice* next)
{
float wallLength1 = getWallLength();
float wallLength2 = next->getWallLength();
int tempID = intermediateMeshID;
entireIntermediate = parentNode->createChildSceneNode("intermediateSegmentNode" + Util::toStringInt(intermediateMeshID));
std::string meshName = "intermediateMesh" + Util::toStringInt(intermediateMeshID);
ManualObject* manual = parentNode->getCreator()->createManualObject(meshName);
Quaternion q1 = getQuaternion();
Quaternion q2 = next->getQuaternion();
Vector3 start = center + getForward() * (depth / 2);
Vector3 end = next->center - next->getForward() * (next->depth / 2);
Vector3 move;
Vector3 p1;
Vector3 p2;
Vector3 p3;
Vector3 p4;
Vector3 bl = Vector3(Ogre::Math::POS_INFINITY, Ogre::Math::POS_INFINITY, Ogre::Math::POS_INFINITY);
Vector3 tr = Vector3(Ogre::Math::NEG_INFINITY, Ogre::Math::NEG_INFINITY, Ogre::Math::NEG_INFINITY);
move = Vector3(-wallLength1 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), wallLength1 / 2, 0);
move = q1 * move;
p1 = start + move;
move = Vector3(-wallLength2 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), wallLength2 / 2, 0);
move = q2 * move;
p2 = end + move;
move = Vector3(-wallLength2 / 2, wallLength2 * (0.5 + Math::Sin(Ogre::Radian(Math::PI) / 4)), 0);
move = q2 * move;
p3 = end + move;
move = Vector3(-wallLength1 / 2, wallLength1 * (0.5 + Math::Sin(Ogre::Radian(Math::PI) / 4)), 0);
move = q1 * move;
p4 = start + move;
if (sidesUsed[NORTHWEST])
setIntermediateWall(entireIntermediate, NORTHWEST, manual, p1, p2, p3, p4, bl, tr);
p1 = p4;
p2 = p3;
move = Vector3(wallLength2 / 2, wallLength2 * (0.5 + Math::Sin(Ogre::Radian(Math::PI) / 4)), 0);
move = q2 * move;
p3 = end + move;
move = Vector3(wallLength1 / 2, wallLength1 * (0.5 + Math::Sin(Ogre::Radian(Math::PI) / 4)), 0);
move = q1 * move;
p4 = start + move;
if (sidesUsed[NORTH])
setIntermediateWall(entireIntermediate, NORTH, manual, p1, p2, p3, p4, bl, tr);
p1 = p4;
p2 = p3;
move = Vector3(wallLength2 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), wallLength2 / 2, 0);
move = q2 * move;
p3 = end + move;
move = Vector3(wallLength1 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), wallLength1 / 2, 0);
move = q1 * move;
p4 = start + move;
if (sidesUsed[NORTHEAST])
setIntermediateWall(entireIntermediate, NORTHEAST, manual, p1, p2, p3, p4, bl, tr);
p1 = p4;
p2 = p3;
move = Vector3(wallLength2 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), -wallLength2 / 2, 0);
move = q2 * move;
p3 = end + move;
move = Vector3(wallLength1 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), -wallLength1 / 2, 0);
move = q1 * move;
p4 = start + move;
if (sidesUsed[EAST])
setIntermediateWall(entireIntermediate, EAST, manual, p1, p2, p3, p4, bl, tr);
p1 = p4;
p2 = p3;
move = Vector3(wallLength2 / 2, -wallLength2 * (0.5 + Math::Sin(Ogre::Radian(Math::PI) / 4)), 0);
move = q2 * move;
p3 = end + move;
move = Vector3(wallLength1 / 2, -wallLength1 * (0.5 + Math::Sin(Ogre::Radian(Math::PI) / 4)), 0);
move = q1 * move;
p4 = start + move;
if (sidesUsed[SOUTHEAST])
setIntermediateWall(entireIntermediate, SOUTHEAST, manual, p1, p2, p3, p4, bl, tr);
p1 = p4;
p2 = p3;
move = Vector3(-wallLength2 / 2, -wallLength2 * (0.5 + Math::Sin(Ogre::Radian(Math::PI) / 4)), 0);
move = q2 * move;
p3 = end + move;
move = Vector3(-wallLength1 / 2, -wallLength1 * (0.5 + Math::Sin(Ogre::Radian(Math::PI) / 4)), 0);
move = q1 * move;
p4 = start + move;
if (sidesUsed[SOUTH])
setIntermediateWall(entireIntermediate, SOUTH, manual, p1, p2, p3, p4, bl, tr);
p1 = p4;
p2 = p3;
move = Vector3(-wallLength2 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), -wallLength2 / 2, 0);
move = q2 * move;
p3 = end + move;
move = Vector3(-wallLength1 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), -wallLength1 / 2, 0);
move = q1 * move;
p4 = start + move;
if (sidesUsed[SOUTHWEST])
setIntermediateWall(entireIntermediate, SOUTHWEST, manual, p1, p2, p3, p4, bl, tr);
p1 = p4;
p2 = p3;
move = Vector3(-wallLength1 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), wallLength1 / 2, 0);
move = q2 * move;
p3 = end + move;
move = Vector3(-wallLength2 * (0.5 + Math::Cos(Ogre::Radian(Math::PI) / 4)), wallLength2 / 2, 0);
move = q1 * move;
p4 = start + move;
if (sidesUsed[WEST])
setIntermediateWall(entireIntermediate, WEST, manual, p1, p2, p3, p4, bl, tr);
MeshPtr mesh = manual->convertToMesh(meshName);
mesh->_setBounds( AxisAlignedBox( bl, tr ), true );
float l = (tr - bl).length() / 2;
mesh->_setBoundingSphereRadius(l);
unsigned short src, dest;
if (!mesh->suggestTangentVectorBuildParams(VES_TANGENT, src, dest))
{
mesh->buildTangentVectors(VES_TANGENT, src, dest);
}
Entity* intermediateSegmentEntity = entireIntermediate->getCreator()->createEntity("intermediateSegmentEntity" + Util::toStringInt(intermediateMeshID), meshName);
//intermediateSegmentEntity->setMaterialName(getMaterialName());
for (int i = 0; i < intermediateSegmentEntity->getNumSubEntities(); ++i)
intermediateSegmentEntity->getSubEntity(i)->setMaterialName(getMaterialName());
entireIntermediate->attachObject(intermediateSegmentEntity);
meshes.push_back(mesh);
intermediateMeshID++;
parentNode->getCreator()->destroyManualObject(manual);
}
// Generate normals for polygon meshes
void IndexedGeometry::createIndexedFaceSet()
{
if (_coords.empty())
throw std::runtime_error("No coordinates given.");
if (_coordIndex.empty())
throw std::runtime_error("No coordinate index given.");
MeshPtr mesh = MeshManager::getSingleton().createManual(_name, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
SubMesh *sub = mesh->createSubMesh();
bool hasTextureCoordinates = !_texCoords.empty();
bool hasPointColors = !_colors.empty() && _colorPerVertex;
bool hasPointNormals = !_normals.empty() && _normalPerVertex;
bool hasCellColors = !_colors.empty() && !hasPointColors;
bool hasCellNormals = !_normals.empty() && !hasPointNormals;
bool calcPointNormals = _normals.empty() && _normalPerVertex;
std::vector<face> faces;
face f;
for (std::vector<int>::const_iterator I=_coordIndex.begin(); I !=_coordIndex.end(); ++I) {
if (*I == -1) {
faces.resize(faces.size()+1);
faces.back().indices.swap(f.indices);
} else
f.indices.push_back(I - _coordIndex.begin());
}
if (!f.indices.empty()) {
faces.resize(faces.size()+1);
faces.back().indices.swap(f.indices);
}
std::vector<vertex> vertices;
std::vector<triangle> triangles;
VertMap vertexMap;
// triangulate and expand vertices
for (std::vector<face>::const_iterator f=faces.begin(), e=faces.end(); f!=e; ++f) {
int faceNr = f - faces.begin();
int triVertNr = 0;
int triVerts[2] = { -1, -1 };
for (std::vector<int>::const_iterator i = f->indices.begin(), e=f->indices.end(); i!=e; ++i, ++triVertNr) {
int triVertNr = i - f->indices.begin();
int index = *i;
vertex vert;
// get full indices for vertex data
vert.pos = _coordIndex[index];
vert.normal = !_normals.empty() ? getIndex(_coordIndex, _normalIndex,
_normalPerVertex, faceNr, index) : 0;
vert.colour = !_colors.empty() ? getIndex(_coordIndex, _colorIndex,
_colorPerVertex, faceNr, index) : 0;
vert.tc = hasTextureCoordinates ? getIndex(_coordIndex, _texCoordIndex,
true, faceNr, index) : 0;
// avoid duplication
//int nvert = vertexMap.size();
//int &vpos = vertexMap[vert];
//if (nvert != vertexMap.size()) {
int vpos = vertices.size();
vertices.push_back(vert);
//}
// emit triangle (maybe)
if (triVertNr == 0)
triVerts[0] = vpos;
else if (triVertNr == 1)
triVerts[1] = vpos;
else {
triangle t;
t.vertices[0] = triVerts[0];
t.vertices[1] = triVerts[1];
t.vertices[2] = vpos;
if (!_ccw)
std::swap(t.vertices[1], t.vertices[2]);
triangles.push_back(t);
triVerts[1] = vpos;
}
}
}
// createOgreMesh
int nvertices = vertices.size();
int nfaces = triangles.size();
VertexData* vertexData = new VertexData();
sub->vertexData = vertexData;
IndexData* indexData = sub->indexData;
VertexDeclaration* vertexDecl = vertexData->vertexDeclaration;
size_t currOffset = 0;
// positions
vertexDecl->addElement(0, currOffset, VET_FLOAT3, VES_POSITION);
currOffset += VertexElement::getTypeSize(VET_FLOAT3);
if (hasPointNormals)
{
// normals
vertexDecl->addElement(0, currOffset, VET_FLOAT3, VES_NORMAL);
currOffset += VertexElement::getTypeSize(VET_FLOAT3);
}
// two dimensional texture coordinates
if (hasTextureCoordinates)
{
vertexDecl->addElement(0, currOffset, VET_FLOAT2, VES_TEXTURE_COORDINATES, 0);
currOffset += VertexElement::getTypeSize(VET_FLOAT2);
}
std::cout << std::endl;
// allocate index buffer
indexData->indexCount = nfaces * 3;
indexData->indexBuffer = HardwareBufferManager::getSingleton().createIndexBuffer(HardwareIndexBuffer::IT_16BIT, indexData->indexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
HardwareIndexBufferSharedPtr iBuf = indexData->indexBuffer;
unsigned short* pIndices = static_cast<unsigned short*>(iBuf->lock(HardwareBuffer::HBL_DISCARD));
std::cout << triangles.size() << ": ";
for(std::vector<triangle>::const_iterator T = triangles.begin(); T != triangles.end(); T++)
{
const triangle &t = (*T);
*pIndices++ = t.vertices[0];
*pIndices++ = t.vertices[1];
*pIndices++ = t.vertices[2];
std::cout << t.vertices[0] << " " << t.vertices[1] << " " << t.vertices[2] << " ";
}
std::cout << std::endl;
// allocate the vertex buffer
vertexData->vertexCount = nvertices;
HardwareVertexBufferSharedPtr vBuf = HardwareBufferManager::getSingleton().createVertexBuffer(vertexDecl->getVertexSize(0), vertexData->vertexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
VertexBufferBinding* binding = vertexData->vertexBufferBinding;
binding->setBinding(0, vBuf);
float* pVertex = static_cast<float*>(vBuf->lock(HardwareBuffer::HBL_DISCARD));
AxisAlignedBox aabox;
std::cout << vertices.size() << ": ";
for(std::vector<vertex>::const_iterator V = vertices.begin(); V != vertices.end(); V++)
{
const vertex &v = (*V);
SFVec3f pos = _coords.at(v.pos);
*pVertex++ = pos.x;
*pVertex++ = pos.y;
*pVertex++ = pos.z;
aabox.merge(Vector3(pos.x, pos.y, pos.z));
std::cout << pos.x << " " << pos.y << " " << pos.z << " " << std::endl;
//std::cout << v.pos << " ";
if (hasPointNormals)
{
const SFVec3f normal = _normals.at(v.normal);
*pVertex++ = normal.x;
*pVertex++ = normal.y;
*pVertex++ = normal.z;
}
}
std::cout << std::endl;
// Unlock
vBuf->unlock();
iBuf->unlock();
sub->useSharedVertices = false;
// the original code was missing this line:
mesh->_setBounds(aabox);
mesh->_setBoundingSphereRadius((aabox.getMaximum()-aabox.getMinimum()).length()/2.0);
// this line makes clear the mesh is loaded (avoids memory leaks)
mesh->load();
}
void createSphereMesh(const String &name, const float radius, const int slices, const int stacks)
{
MeshPtr mesh = MeshManager::getSingleton().createManual(name, ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
mesh->sharedVertexData = new VertexData();
mesh->_setBounds(AxisAlignedBox(Vector3(-radius, -radius, -radius), Vector3(radius, radius, radius)));
mesh->_setBoundingSphereRadius(radius);
VertexData *vertexData = mesh->sharedVertexData;
vertexData->vertexDeclaration->addElement(0, 0, VET_FLOAT3, VES_POSITION);
vertexData->vertexDeclaration->addElement(1, 0, VET_FLOAT3, VES_NORMAL);
vertexData->vertexCount = slices * (stacks + 1);
HardwareVertexBufferSharedPtr positionBuffer = HardwareBufferManager::getSingleton().createVertexBuffer(
vertexData->vertexDeclaration->getVertexSize(0),
vertexData->vertexCount,
HardwareBuffer::HBU_STATIC_WRITE_ONLY);
HardwareVertexBufferSharedPtr normalBuffer = HardwareBufferManager::getSingleton().createVertexBuffer(
vertexData->vertexDeclaration->getVertexSize(1),
vertexData->vertexCount,
HardwareBuffer::HBU_STATIC_WRITE_ONLY);
float *position = static_cast<float *>(positionBuffer->lock(HardwareBuffer::HBL_DISCARD));
float *normal = static_cast<float *>(normalBuffer->lock(HardwareBuffer::HBL_DISCARD));
for (int ring = 0; ring <= stacks; ring++) {
float r = radius * sinf(ring * Math::PI / stacks);
float y = radius * cosf(ring * Math::PI / stacks);
for (int segment = 0; segment < slices; segment++) {
float x = r * sinf(segment * 2 * Math::PI / slices);
float z = r * cosf(segment * 2 * Math::PI / slices);
*position++ = x;
*position++ = y;
*position++ = z;
Vector3 tmp = Vector3(x, y, z).normalisedCopy();
*normal++ = tmp.x;
*normal++ = tmp.y;
*normal++ = tmp.z;
}
}
positionBuffer->unlock();
normalBuffer->unlock();
vertexData->vertexBufferBinding->setBinding(0, positionBuffer);
vertexData->vertexBufferBinding->setBinding(1, normalBuffer);
SubMesh *subMesh = mesh->createSubMesh();
subMesh->useSharedVertices = true;
IndexData *indexData = subMesh->indexData;
indexData->indexCount = 6 * slices * stacks;
HardwareIndexBufferSharedPtr indexBuffer = HardwareBufferManager::getSingleton().createIndexBuffer(
HardwareIndexBuffer::IT_16BIT,
indexData->indexCount,
HardwareBuffer::HBU_STATIC_WRITE_ONLY);
unsigned short *index = static_cast<unsigned short *>(indexBuffer->lock(HardwareBuffer::HBL_DISCARD));
unsigned short i = 0;
for (int ring = 0; ring < stacks; ring++) {
for (int segment = 0; segment < slices - 1; segment++) {
*index++ = i;
*index++ = i + slices;
*index++ = i + slices + 1;
*index++ = i;
*index++ = i + slices + 1;
*index++ = i + 1;
i++;
}
*index++ = i;
*index++ = i + slices;
*index++ = i + 1;
*index++ = i;
*index++ = i + 1;
*index++ = i + 1 - slices;
i++;
}
indexBuffer->unlock();
indexData->indexBuffer = indexBuffer;
mesh->load();
}