byte[] GetNormalsBytes(Rhino.Geometry.Collections.MeshVertexNormalList normals, out Vector3f min, out Vector3f max)
{
Vector3f vMin = new Vector3f()
{
X = float.PositiveInfinity, Y = float.PositiveInfinity, Z = float.PositiveInfinity
};
Vector3f vMax = new Vector3f()
{
X = float.NegativeInfinity, Y = float.NegativeInfinity, Z = float.NegativeInfinity
};
//Preallocate to reduce time spent on allocations
List <float> floats = new List <float>(normals.Count * 3);
foreach (Vector3f normal in normals)
{
floats.AddRange(new float[] { normal.X, normal.Y, normal.Z });
vMin.X = Math.Min(vMin.X, normal.X);
vMax.X = Math.Max(vMax.X, normal.X);
vMin.Y = Math.Min(vMin.Y, normal.Y);
vMax.Y = Math.Max(vMax.Y, normal.Y);
vMax.Z = Math.Max(vMax.Z, normal.Z);
vMin.Z = Math.Min(vMin.Z, normal.Z);
}
IEnumerable <byte> bytesEnumerable = floats.SelectMany(value => BitConverter.GetBytes(value));
min = vMin;
max = vMax;
return(bytesEnumerable.ToArray());
}
glTFLoader.Schema.Buffer CreateNormalsBuffer(Rhino.Geometry.Collections.MeshVertexNormalList normals, out Vector3f min, out Vector3f max)
{
byte[] bytes = GetNormalsBytes(normals, out min, out max);
return(new glTFLoader.Schema.Buffer()
{
Uri = Constants.TextBufferHeader + Convert.ToBase64String(bytes),
ByteLength = bytes.Length,
});
}
private void addRhinoMeshVertices(Rhino.Geometry.Collections.MeshTopologyVertexList meshVertexList, Rhino.Geometry.Collections.MeshVertexNormalList meshVertexNormalList)
{
for (int i = 0; i < meshVertexList.Count; i++)
{
addVertex(UsefulFunctions.convertPointToVector(meshVertexList[i]));
}
}