// Model will be scaled/translated to fit voxel map size (X, Y and Z)
MyVoxelImport(MyVoxelMap voxelMap, MyModelObj model, MyVoxelImportOptions importOptions)
{
// Load model, get triangles
LoadModel(model);
// Rescale the model so it fits voxelMap (three directions!!!)
RescaleModel(voxelMap, importOptions);
// Fill lookup array with triangles located at specified voxel positions. Array is 2D.
FillTrianglesLookup(voxelMap);
// Create XZ map where every voxel center gets list of triangles that lie on its Y line
// Do this by iterating over all triangles and making references to them from XZ map
Import(voxelMap);
}
void LoadModel(MyModelObj model)
{
m_minCoord = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
m_maxCoord = new Vector3(float.MinValue, float.MinValue, float.MinValue);
Vector3[] vertices = model.Vertexes.ToArray();
MyTriangleVertexIndices[] triangles = model.Triangles.ToArray();
m_triangles = new List<MyImportTriangle>(triangles.Length);
for (int i = 0; i < triangles.Length; i++)
{
Vector3 vertex0 = vertices[triangles[i].I0];
Vector3 vertex1 = vertices[triangles[i].I1];
Vector3 vertex2 = vertices[triangles[i].I2];
MyImportTriangle triangle = new MyImportTriangle(vertex0, vertex1, vertex2);
// Ignore triangles that lie in XZ plane
if (triangle.Normal.Y != 0)
{
m_triangles.Add(triangle);
CheckMinMaxCoords(vertex0);
CheckMinMaxCoords(vertex1);
CheckMinMaxCoords(vertex2);
}
}
}
// Use this static method do one-time import of a voxel map
public static void Run(MyVoxelMap voxelMap, MyModelObj model, MyVoxelImportOptions importOptions)
{
MyVoxelImport voxelMapImport = new MyVoxelImport(voxelMap, model, importOptions);
}
