private async void Test3_Click(object sender, RoutedEventArgs e)
{
InitTest();
FileOpenPicker picker1 = new FileOpenPicker();
picker1.FileTypeFilter.Add("*");
var file = await picker1.PickSingleFileAsync();
if (file == null)
{
return;
}
var fOpen = (await file.OpenReadAsync()).AsStream();
byte[] bData = new byte[fOpen.Length];
fOpen.Read(bData, 0, (int)fOpen.Length);
var task2 = await VertexShader.CompileAndCreateAsync(dcRenderView.GetDevice(), bData);
VertexShader shader = task2;
canvasview.SetVertexShader(shader);
TestRender();//测试通过
}