Helix 3d-toolkit Displayed .STL model color change - helix-3d-toolkit

Question

Im making an c# application that display a 3dmodel.stl in a windows form.
I've managed to display it but the default color for the model is blue and i need to change it to anything else, lets say pink/brown (it should look like skin).
I've been 2 days looking for it and reading documentation and examples but i have not found a way to change it.
If someone has worked whit helix and know how (or even if there is a way) to do it i'will thanks him so much for the info.
the code is very simple:
XAML code:
<UserControl x:Class="Ventana.Visor3D"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:helix="http://helix-toolkit.org/wpf"
xmlns:local="clr-namespace:Ventana"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<Grid>
<helix:HelixViewport3D x:Name="viewPort3d" ZoomExtentsWhenLoaded="true" Grid.RowSpan="2" >
<helix:SunLight/>
</helix:HelixViewport3D>
</Grid>
And the C# code:
public partial class Visor3D : UserControl
{
private const string MODEL_PATH = "\\Prueba.STL";
ModelVisual3D device3D;
public Visor3D(){ }
public void Carga() {
InitializeComponent();
device3D = new ModelVisual3D();
device3D.Content = Display3d(MODEL_PATH);
viewPort3d.Children.Add(device3D);
}
private Model3D Display3d(string model)
{
Model3D device = null;
try
{
viewPort3d.RotateGesture = new MouseGesture(MouseAction.LeftClick);
ModelImporter import = new ModelImporter();
device = import.Load(Environment.CurrentDirectory + model);
}
catch (Exception e)
{
MessageBox.Show("Exception Error : " + e.StackTrace);
}
return device;
}
}

Answer 1

I have found the same problem with .obj file with helix toolkit. My solution was to replace the Material of object with new one. Isn't the best solution I guess, but it works on my WPF Project.
// Set your RGB Color on the SolitColorBrush
System.Windows.Media.Media3D.Material mat = MaterialHelper.CreateMaterial(
new SolidColorBrush(Color.FromRgb(255, 255, 255))
//Replace myModel3DGroup by your Model3DGroup of your view....
foreach (System.Windows.Media.Media3D.GeometryModel3D geometryModel in myModel3DGroup.Children)
{
geometryModel.Material = mat;
geometryModel.BackMaterial = mat;
}