/// <summary>
/// Returns a single TiltBrushMesh instance created from all passed in
/// </summary>
/// <param name="meshes">Instances to merge</param>
/// <returns></returns>
public static TiltBrushMesh FromMeshes(TiltBrushMesh[] meshes)
{
TiltBrushMesh destinationMesh = new TiltBrushMesh();
if (meshes.Length > 0)
{
destinationMesh.Name = meshes[0].Name;
destinationMesh.BrushName = meshes[0].BrushName;
destinationMesh.BrushGuid = meshes[0].BrushGuid;
for (int i = 0; i < meshes.Length; i++)
{
var mesh = meshes[i];
if (i == 0)
{
//if the first item in the list, instantiate the destination object properties with mesh properties
destinationMesh.v = mesh.v;
destinationMesh.n = mesh.n;
destinationMesh.uv0 = mesh.uv0;
destinationMesh.uv1 = mesh.uv1;
destinationMesh.c = mesh.c;
destinationMesh.t = mesh.t;
destinationMesh.tri = mesh.tri;
}
else
{
int offset = destinationMesh.v.Length;
destinationMesh.v = destinationMesh.v.ExtendArray(mesh.v);
destinationMesh.n = destinationMesh.n.ExtendArray(mesh.n);
destinationMesh.uv0 = destinationMesh.uv0.ExtendArray(mesh.uv0);
if (destinationMesh.uv1 != null)
{
destinationMesh.uv1 = destinationMesh.uv1.ExtendArray(mesh.uv1);
}
destinationMesh.c = destinationMesh.c.ExtendArray(mesh.c);
destinationMesh.t = destinationMesh.t.ExtendArray(mesh.t);
destinationMesh.tri = destinationMesh.tri.ExtendArray(mesh.tri.Select(t => new Tuple <int, int, int>(t.Item1 + offset, t.Item2 + offset, t.Item3 + offset)).ToArray());
}
}
}
else
{
throw new ArgumentException("Empty array passed");
}
return(destinationMesh);
}
/// <summary>
/// returns an array of TiltBrushMesh instances, parsed from the .json export from Tilt Brush
/// </summary>
/// <param name="filePath">Path to .json file</param>
/// <returns></returns>
public static TiltBrushMesh[] FromFile(string filePath)
{
TiltBrushMesh[] meshes = null;
if (File.Exists(filePath))
{
string json = File.ReadAllText(filePath);
JavaScriptSerializer jsonSerializer = new JavaScriptSerializer();
jsonSerializer.MaxJsonLength = Int32.MaxValue;
JsonHolder items = jsonSerializer.Deserialize <JsonHolder>(json);
meshes = new TiltBrushMesh[items.strokes.Length];
int count = 0;
foreach (var stroke in items.strokes)
{
TiltBrushMesh mesh = new TiltBrushMesh();
var brush = items.brushes[stroke.brush];
mesh.BrushName = brush.name;
mesh.BrushGuid = brush.guid;
//num verts gets set when parsing the vertices information and is then used to parse the remainder of the information
int numVerts = 0;
mesh.v = GetInfo("v", stroke.v, ref numVerts);
mesh.n = GetInfo("n", stroke.n, ref numVerts);
mesh.uv0 = Get4TupleInfo("uv0", stroke.uv0, ref numVerts);
mesh.uv1 = Get4TupleInfo("uv1", stroke.uv1, ref numVerts);
mesh.c = GetIntInfo("c", stroke.c, ref numVerts);
mesh.t = Get4TupleInfo("t", stroke.t, ref numVerts);
mesh.tri = GetIntTupleInfo("tri", stroke.tri, ref numVerts);
meshes[count] = mesh;
count++;
}
}
else
{
throw new FileNotFoundException("No file found at " + filePath);
}
return(meshes);
}
