bool Region::containsPoint(const Vector3DFloat& pos, float boundary) const
{
return (pos.getX() <= m_v3dUpperCorner.getX() - boundary)
&& (pos.getY() <= m_v3dUpperCorner.getY() - boundary)
&& (pos.getZ() <= m_v3dUpperCorner.getZ() - boundary)
&& (pos.getX() >= m_v3dLowerCorner.getX() + boundary)
&& (pos.getY() >= m_v3dLowerCorner.getY() + boundary)
&& (pos.getZ() >= m_v3dLowerCorner.getZ() + boundary);
}
OpenGLSurfaceMesh BuildOpenGLSurfaceMesh(const SurfaceMesh<PositionMaterialNormal>& mesh)
{
//Represents our filled in OpenGL vertex and index buffer objects.
OpenGLSurfaceMesh result;
//The source
result.sourceMesh = &mesh;
//Convienient access to the vertices and indices
const vector<PositionMaterialNormal>& vecVertices = mesh.getVertices();
const vector<uint32_t>& vecIndices = mesh.getIndices();
//If we have any indices...
if(!vecIndices.empty())
{
//Create an OpenGL index buffer
glGenBuffers(1, &result.indexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, result.indexBuffer);
//Get a pointer to the first index
GLvoid* pIndices = (GLvoid*)(&(vecIndices[0]));
//Fill the OpenGL index buffer with our data.
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vecIndices.size() * sizeof(uint32_t), pIndices, GL_STATIC_DRAW);
}
result.noOfIndices = vecIndices.size();
glGenBuffers(1, &result.vertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, result.vertexBuffer);
glBufferData(GL_ARRAY_BUFFER, vecVertices.size() * sizeof(GLfloat) * 9, 0, GL_STATIC_DRAW);
GLfloat* ptr = (GLfloat*)glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE);
for(vector<PositionMaterialNormal>::const_iterator iterVertex = vecVertices.begin(); iterVertex != vecVertices.end(); ++iterVertex)
{
const PositionMaterialNormal& vertex = *iterVertex;
const Vector3DFloat& v3dVertexPos = vertex.getPosition();
//const Vector3DFloat v3dRegionOffset(uRegionX * g_uRegionSideLength, uRegionY * g_uRegionSideLength, uRegionZ * g_uRegionSideLength);
const Vector3DFloat v3dFinalVertexPos = v3dVertexPos + static_cast<Vector3DFloat>(mesh.m_Region.getLowerCorner());
*ptr = v3dFinalVertexPos.getX();
ptr++;
*ptr = v3dFinalVertexPos.getY();
ptr++;
*ptr = v3dFinalVertexPos.getZ();
ptr++;
*ptr = vertex.getNormal().getX();
ptr++;
*ptr = vertex.getNormal().getY();
ptr++;
*ptr = vertex.getNormal().getZ();
ptr++;
uint8_t material = vertex.getMaterial() + 0.5;
OpenGLColour colour = convertMaterialIDToColour(material);
*ptr = colour.red;
ptr++;
*ptr = colour.green;
ptr++;
*ptr = colour.blue;
ptr++;
}
glUnmapBuffer(GL_ARRAY_BUFFER);
return result;
}