Error while importing custom .obj model.

[Hanning-Liu]

Hi @Perksey and @zoalasaurusrawr,

1. The usage of the repository:
   I think the repository is a little complex to use. Don't know if I make some stupid operations. I cloned the repository and opened the .sln file. It reports many errors after I click the Build button.
   Finally, I create a .sln file form scratch then import the Silk.NET NuGet packages then I copy and add the example folders manully, then it finally works well.

2. The error while importing custom .obj model:
   I followed this "Tutorial 4.1 - Model Loading" example file:
   https://github.com/dotnet/Silk.NET/tree/8c14e75e526e21894c74f5ac722d47d70697c292/examples/CSharp/OpenGL%20Tutorials/Tutorial%204.1%20-%20Model%20Loading

I only changed the model imoprting code at the last line:

        private static void OnLoad()
        {
            IInputContext input = window.CreateInput();
            primaryKeyboard = input.Keyboards.FirstOrDefault();
            if (primaryKeyboard != null)
            {
                primaryKeyboard.KeyDown += KeyDown;
            }
            for (int i = 0; i < input.Mice.Count; i++)
            {
                input.Mice[i].Cursor.CursorMode = CursorMode.Raw;
                input.Mice[i].MouseMove += OnMouseMove;
                input.Mice[i].Scroll += OnMouseWheel;
            }

            Gl = GL.GetApi(window);

            Shader = new Shader(Gl, "shader.vert", "shader.frag");
            Texture = new Texture(Gl, "silk.png");
            Model = new Model(Gl, "untitled.model"); // Original code: Model = new Model(Gl, "cube.model");

And it reported this error message:

System.Exception
  HResult=0x80131500
  Message=Unable to open file "untitled.model".
  Source=Tutorial 4.1 - Model Loading
  StackTrace:
   at Tutorial.Model.LoadModel(String path) in C:\Users\77950\Desktop\Silk_NET\Test\ConsoleApp1\Tutorial 4.1 - Model Loading\Model.cs:line 40
   at Tutorial.Model..ctor(GL gl, String path, Boolean gamma) in C:\Users\77950\Desktop\Silk_NET\Test\ConsoleApp1\Tutorial 4.1 - Model Loading\Model.cs:line 21
   at Tutorial.Program.OnLoad() in C:\Users\77950\Desktop\Silk_NET\Test\ConsoleApp1\Tutorial 4.1 - Model Loading\Program.cs:line 69
   at Silk.NET.Windowing.Internals.ViewImplementationBase.Initialize()
   at Silk.NET.Windowing.WindowExtensions.Run(IView view)
   at Tutorial.Program.Main(String[] args) in C:\Users\77950\Desktop\Silk_NET\Test\ConsoleApp1\Tutorial 4.1 - Model Loading\Program.cs:line 45

This is my model file:
untitled.zip

Thank you for your help in advance!

[Perksey]

Have you changed your csproj in response to the renaming of the model file?

[Hanning-Liu]

Yes, this is part of my csproj:

    <ItemGroup>
      <None Update="untitled.obj"> // Changed from 'cube.obj' to 'untitled.obj'
        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
      </None>
      <None Update="Shader.frag">
        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      </None>
      <None Update="Shader.vert">
        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      </None>
      <None Update="silk.png">
        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      </None>
    </ItemGroup>

[Hanning-Liu]

And this is my .sln files!
ConsoleApp1.zip

[Hanning-Liu]

Hi @Perksey,
Thank you for your help!
It works well now! I changed the suffix of the model file name to be the same in both ".csproj" and "model loading part of code". They should be both ".obj" or ".model".

But the suffix are different in the original example file. It is ".model" in the "model loading part of code" and ".obj" in the ".csproj" file.
This is a bit confusing. Do you know the reason?

[Perksey]

No idea, glad you worked it out though.