Question

我正在使用Silverlight 5.0开发3D应用程序。

对我而言，System.Windows.Graphics.GraphicsDeviceManager.Current.GraphicsDevice始终显示null。

这是我的代码

private void DrawingSurface_Loaded(object sender, RoutedEventArgs e)
    {
        if (GraphicsDeviceManager.Current.RenderMode != RenderMode.Hardware)
        {
            if (GraphicsDeviceManager.Current.RenderModeReason == RenderModeReason.SecurityBlocked)
            {
                throw new  Exception();
            }
        }


        GraphicsDevice device = System.Windows.Graphics.GraphicsDeviceManager.Current.GraphicsDevice;

        _vertexBuffer = StreamHelper.ToMesh(device, "cube.obj");

        _effect = new BasicEffect(GraphicsDeviceManager.Current.GraphicsDevice);
        _effect.Texture = StreamHelper.ToTexture2D(device, "Tulips.jpg");
        _effect.TextureEnabled = true;
        _effect.World = Matrix.Identity;
        _effect.View = Matrix.CreateLookAt(new Vector3(5.0f, 5.0f, 5.0f), Vector3.Zero, Vector3.Up);
        _effect.Projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.PiOver4, 1.667f, 1.0f, 10.0f);
    }

任何人都可以帮助我。

Answer 1

您是否允许使用3D图形？如果没有运行Silverlight.Configuration.exe（对我而言，它位于“C：\ Program Files（x86）\ Microsoft Silverlight \ 5.0.61118.0 \”）并选择权限选项卡。允许3D图形。

Answer 2

您可能想要检查一些其他GraphicsDeviceManager.Current.RenderModeReason值。正如本文中所讨论的更多：http://blogs.msdn.com/b/eternalcoding/archive/2011/10/18/some-reasons-why-my-3d-is-not-working-with-silverlight-5.aspx

Silverlight 5：GraphicsDevice始终为null

2 个答案: