bool IGraphicsDeviceManager.BeginDraw()
{
if (GraphicsDevice == null)
{
return(false);
}
beginDrawOk = false;
if (!CheckDeviceState())
{
return(false);
}
GraphicsDevice.Begin();
// TODO GRAPHICS REFACTOR
//// Before drawing, we should clear the state to make sure that there is no unstable graphics device states (On some WP8 devices for example)
//// An application should not rely on previous state (last frame...etc.) after BeginDraw.
//GraphicsDevice.ClearState();
//
//// By default, we setup the render target to the back buffer, and the viewport as well.
//if (GraphicsDevice.BackBuffer != null)
//{
// GraphicsDevice.SetDepthAndRenderTarget(GraphicsDevice.DepthStencilBuffer, GraphicsDevice.BackBuffer);
//}
beginDrawOk = true;
return(beginDrawOk);
}
/// <inheritdoc/>
public override void Draw(GameTime gameTime)
{
base.Draw(gameTime);
// TODO should we clear drawing context parameter collection at each frame?
try
{
GraphicsDevice.Begin();
GraphicsDevice.ClearState();
if (GraphicsDevice.IsProfilingSupported)
{
GraphicsDevice.EnableProfile(true);
}
// Draw recursively the Pipeline
Draw(Pipeline, drawContext);
}
catch (Exception ex)
{
Log.Error("An exception occured while rendering", ex);
}
finally
{
GraphicsDevice.End();
}
}
public void Draw()
{
device.Clear(Color.LightSlateGray);
device.Begin();
cube.Draw(scene);
device.End();
}
private void UpdateScreen()
{
device.Clear(Color.White);
device.Begin();
foo.Draw(scene);
bar.Draw(scene);
selectionCursor.Draw(scene);
highlightingCursor.Draw(scene);
labelPolygons.Text = device.PolygonsCount.ToString();
device.End();
}
