private static int GetIndexOfClosestColoredVertex(Mesh mesh, Point3f position)
{
(int index, double distance)searchResult = (-1, float.PositiveInfinity);
for (var i = 0; i < mesh.Vertices.Count; i++)
{
//skip vertices with no color
if (mesh.VertexColors[i].A == 0)
{
continue;
}
var distance = position.DistanceTo(mesh.Vertices[i]);
if (distance < searchResult.distance)
{
searchResult = (i, distance);
}
}
return(searchResult.index);
}