public BitmapSource Render(Camera camera)
{
// Setup for rendering.
var rasterizerState = RasterizerState.New(_device, new RasterizerStateDescription
{
CullMode = CullMode.Back,
FillMode = FillMode.Solid,
IsMultisampleEnabled = true,
IsFrontCounterClockwise = Options.TriangleWindingOrderReversed
});
_device.SetRasterizerState(rasterizerState);
_device.Clear(_renderTexture, ConversionUtility.ToSharpDXColor(Options.BackgroundColor));
_device.Clear(_depthStencilTexture, DepthStencilClearFlags.Depth, 1, 0);
_device.SetRenderTargets(_depthStencilTexture, _renderTexture);
_effect.LightingEnabled = Options.LightingEnabled;
_effect.View = ConversionUtility.ToSharpDXMatrix(camera.GetViewMatrix());
_effect.Projection = ConversionUtility.ToSharpDXMatrix(camera.GetProjectionMatrix(_aspectRatio));
// Render scene.
_device.SetBlendState(_device.BlendStates.Opaque);
foreach (WarpMesh mesh in _meshes.Where(m => m.IsOpaque))
{
mesh.Draw(_effect);
}
_device.SetBlendState(_device.BlendStates.AlphaBlend);
foreach (WarpMesh mesh in _meshes.Where(m => !m.IsOpaque))
{
mesh.Draw(_effect);
}
_device.SetBlendState(null);
// Extract image from render target.
_device.SetRenderTargets((RenderTargetView)null);
_device.SetRasterizerState(null);
rasterizerState.Dispose();
using (var memoryStream = new MemoryStream())
{
_renderTexture.Save(memoryStream, ImageFileType.Png);
var bi = new BitmapImage();
bi.BeginInit();
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.StreamSource = memoryStream;
bi.EndInit();
return(bi);
}
}