With PointGeometryModel3D in SharpDX how do I update a single point ?

Hi. With the code below I can display my cloudpoint on wpf,

var cloudpoints = new PointGeometryModel3D { Color = Colors.White, Size = new Size(1, 1) }; cloudpoints.Geometry = new PointGeometry3D() { Positions = MY_POINTS, Indices = MY_IDS }; viewport.Items.Add(cloudpoints);

Then I can update the cloud point by reassign all positions :

cloudpoints.Geometry.Positions = MY_NEW_POINTS

But is it posible to update Z value for only one of points in MY_POINTS?

Thank you !

[holance]

Hmm, maybe some event is not being hook up properly. You can keep the this open, I will do some debugging later.

[holance]

Fixed. Also make sure to call Geometry3D.UpdateBounds if necessary, otherwise the bound may not match the model after updating vertices.