Time to Render

Well, you have your device created now, so you can start getting something rendered onscreen. You already have the rendering method where you can write all the code needed to render your scene, so add the code in Listing 4.6.

Listing 4.6. The Render Method
bool beginSceneCalled = false;

// Clear the render target and the zbuffer
device.Clear(ClearFlags.ZBuffer | ClearFlags.Target, 0, 1.0f, 0);
try
{
    device.BeginScene();
    beginSceneCalled = true;

}
finally
{
    if (beginSceneCalled)
        device.EndScene();
}

Before you can do any actual rendering, you most likely want to clear the device to prepare it for a new frame. In this case, clear the render target (ClearFlags.Target) to a particular color and the depth buffer (ClearFlags.ZBuffer ...

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