I create a new Billboard and set an image on it using a DifuseMaterial:
var material = new DiffuseMaterial(new ImageBrush(new BitmapImage(new Uri($"Images/target.png", UriKind.Relative)))); _billboard1.Material = material;
The image is a PNG file with transparency. But the transparent pixels are showing as white on the HelixViewport3D:
Are there any secrets when working with transparency or is it not supported?
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