static ParametricShape3D() { FrontMaterialProperty.OverrideMetadata(typeof(ParametricShape3D), new PropertyMetadata(new Shape3DMaterial(GetDefaultFrontMaterial))); BackMaterialProperty.OverrideMetadata(typeof(ParametricShape3D), new PropertyMetadata(new Shape3DMaterial(GetDefaultBackMaterial))); }
set => SetValue(FrontMaterialProperty, value);