public static DMesh3 Reduce(this DMesh3 mesh, float percent, bool project = true)
{
if (!mesh.CheckValidity(eFailMode: FailMode.ReturnOnly))
{
return(mesh);
}
var r = new Reducer(mesh);
if (project)
{
var tree = mesh.AABBTree();
r.SetProjectionTarget(new MeshProjectionTarget(tree.Mesh, tree));
// http://www.gradientspace.com/tutorials/2017/8/30/mesh-simplification
// r.ProjectionMode = Reducer.TargetProjectionMode.Inline;
}
var target = mesh.VertexCount * percent / 100.0f;
r.ReduceToVertexCount((int)target);
var newMesh = r.Mesh.Compact();
var g = newMesh.ToIGeometry();
Debug.Assert(g.AreAllIndicesValid());
//Debug.Assert(g.AreAllVerticesUsed());
return(newMesh);
}