void GLC_Mesh::copyBulkData(GLC_Mesh* pLodMesh, const QHash<GLuint, GLuint>& tagetToSourceIndexMap, int maxIndex)
{
GLfloatVector tempFloatVector;
int stride= 3;
// Extract position bulk data
Q_ASSERT(!m_MeshData.positionVectorHandle()->isEmpty());
tempFloatVector.resize(stride * (maxIndex + 1));
for (int i= 0; i < maxIndex + 1; ++i)
{
GLfloat* pTarget= &(tempFloatVector.data()[i * stride]);
GLfloat* pSource= &(m_MeshData.positionVectorHandle()->data()[tagetToSourceIndexMap.value(i) * stride]);
memcpy(pTarget, pSource, sizeof(GLfloat) * stride);
}
pLodMesh->addVertice(tempFloatVector);
tempFloatVector.clear();
// Extract normal bulk data
Q_ASSERT(!m_MeshData.normalVectorHandle()->isEmpty());
tempFloatVector.resize(stride * (maxIndex + 1));
for (int i= 0; i < maxIndex + 1; ++i)
{
GLfloat* pTarget= &(tempFloatVector.data()[i * stride]);
GLfloat* pSource= &(m_MeshData.normalVectorHandle()->data()[tagetToSourceIndexMap.value(i) * stride]);
memcpy(pTarget, pSource, sizeof(GLfloat) * stride);
}
pLodMesh->addNormals(tempFloatVector);
tempFloatVector.clear();
if (!m_MeshData.texelVectorHandle()->isEmpty())
{
// Extract texel bulk data
stride= 2;
tempFloatVector.resize(stride * (maxIndex + 1));
for (int i= 0; i < maxIndex + 1; ++i)
{
GLfloat* pTarget= &(tempFloatVector.data()[i * stride]);
GLfloat* pSource= &(m_MeshData.texelVectorHandle()->data()[tagetToSourceIndexMap.value(i) * stride]);
memcpy(pTarget, pSource, sizeof(GLfloat) * stride);
}
pLodMesh->addTexels(tempFloatVector);
tempFloatVector.clear();
}
}
// Create the wire
void GLC_Circle::createWire()
{
Q_ASSERT(m_WireData.isEmpty());
m_Step= static_cast<GLuint>(static_cast<double>(m_Discret) * (m_Angle / (2 * glc::PI)));
if (m_Step < 2) m_Step= 2;
// Float vector
GLfloatVector floatVector;
// Resize the Vertex vector
const int size= (m_Step + 1) * 3;
floatVector.resize(size);
// Fill Vertex Vector
const double angleOnStep= m_Angle / static_cast<double>(m_Step);
for (GLuint i= 0; i <= m_Step; ++i)
{
floatVector[(i * 3)]= static_cast<float>(m_Radius * cos(static_cast<double>(i) * angleOnStep));
floatVector[(i * 3) + 1]= static_cast<float>(m_Radius * sin(static_cast<double>(i) * angleOnStep));
floatVector[(i * 3) + 2]= 0.0f;
}
GLC_Geometry::addPolyline(floatVector);
}
void GLC_Cone::createMeshAndWire()
{
Q_ASSERT(GLC_Mesh::isEmpty());
Q_ASSERT(m_WireData.isEmpty());
// Create cosinus and sinus array according to the discretion and radius
const int vertexNumber= m_Discret + 1;
// Normals values
QVector<float> cosNormalArray(vertexNumber);
QVector<float> sinNormalArray(vertexNumber);
QVector<float> cosArray(vertexNumber);
QVector<float> sinArray(vertexNumber);
const double angle= (2.0 * glc::PI) / static_cast<double>(m_Discret);
// Normal Z value
GLC_Vector3d normalVector(1.0, 0.0, 0.0);
GLC_Matrix4x4 rotation(glc::Y_AXIS, -atan(m_Radius / m_Length));
normalVector= rotation * normalVector;
const float normalZ= static_cast<float>(normalVector.z());
const double factor= normalVector.x(); // Normailsation factor
for (int i= 0; i < vertexNumber; ++i)
{
const double cosValue= cos(static_cast<double>(i) * angle);
const double sinValue= sin(static_cast<double>(i) * angle);
cosNormalArray[i]= static_cast<GLfloat>(factor * cosValue);
sinNormalArray[i]= static_cast<GLfloat>(factor * sinValue);
cosArray[i]= static_cast<GLfloat>(m_Radius * cosValue);
sinArray[i]= static_cast<GLfloat>(m_Radius * sinValue);
}
// Mesh Data
GLfloatVector verticeVector;
GLfloatVector normalsVector;
GLfloatVector texelVector;
// Wire Data
GLfloatVector bottomWireData(vertexNumber * 3);
const int size= vertexNumber * 3;
verticeVector.resize(3 * size);
normalsVector.resize(3 * size);
texelVector.resize(2 * size);
for (int i= 0; i < vertexNumber; ++i)
{
// Bottom Mesh
verticeVector[3 * i]= cosArray[i];
verticeVector[3 * i + 1]= sinArray[i];
verticeVector[3 * i + 2]= 0.0f;
normalsVector[3 * i]= cosNormalArray[i];
normalsVector[3 * i + 1]= sinNormalArray[i];
normalsVector[3 * i + 2]= normalZ;
texelVector[2 * i]= static_cast<float>(i) / static_cast<float>(m_Discret);
texelVector[2 * i + 1]= 0.0f;
// Bottom Wire
bottomWireData[3 * i]= cosArray[i];
bottomWireData[3 * i + 1]= sinArray[i];
bottomWireData[3 * i + 2]= 0.0f;
// Top
verticeVector[3 * i + 3 * vertexNumber]= 0.0f;
verticeVector[3 * i + 1 + 3 * vertexNumber]= 0.0f;
verticeVector[3 * i + 2 + 3 * vertexNumber]= static_cast<float>(m_Length);
normalsVector[3 * i + 3 * vertexNumber]= cosNormalArray[i];
normalsVector[3 * i + 1 + 3 * vertexNumber]= sinNormalArray[i];
normalsVector[3 * i + 2 + 3 * vertexNumber]= normalZ;
texelVector[2 * i + 2 * vertexNumber]= texelVector[i];
texelVector[2 * i + 1 + 2 * vertexNumber]= 1.0f;
// Bottom Cap ends
verticeVector[3 * i + 2 * 3 * vertexNumber]= cosArray[i];
verticeVector[3 * i + 1 + 2 * 3 * vertexNumber]= sinArray[i];
verticeVector[3 * i + 2 + 2 * 3 * vertexNumber]= 0.0f;
normalsVector[3 * i + 2 * 3 * vertexNumber]= 0.0f;
normalsVector[3 * i + 1 + 2 * 3 * vertexNumber]= 0.0f;
normalsVector[3 * i + 2 + 2 * 3 * vertexNumber]= -1.0f;
texelVector[2 * i + 2 * 2 * vertexNumber]= texelVector[i];
texelVector[2 * i + 1 + 2 * 2 * vertexNumber]= 0.0f;
}
// Add bulk data in to the mesh
GLC_Mesh::addVertice(verticeVector);
GLC_Mesh::addNormals(normalsVector);
GLC_Mesh::addTexels(texelVector);
// Add polyline to wire data
GLC_Geometry::addPolyline(bottomWireData);
// Set the material to use
GLC_Material* pCylinderMaterial;
if (hasMaterial())
{
pCylinderMaterial= this->firstMaterial();
}
else
{
pCylinderMaterial= new GLC_Material();
}
IndexList circumferenceStrips;
// Create the index
for (int i= 0; i < vertexNumber; ++i)
{
circumferenceStrips.append(i + vertexNumber);
circumferenceStrips.append(i);
}
addTrianglesStrip(pCylinderMaterial, circumferenceStrips);
{
IndexList bottomCap;
IndexList topCap;
int id1= 0;
int id2= m_Discret - 1;
const int size= m_Discret / 2 + (m_Discret % 2);
for (int i= 0; i < size; ++i)
{
bottomCap.append(id1 + 2 * vertexNumber);
bottomCap.append(id2 + 2 * vertexNumber);
id1+= 1;
id2-= 1;
}
addTrianglesStrip(pCylinderMaterial, bottomCap);
}
finish();
}