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);
}
}
public void Draw(BasicEffect effect)
{
if (!_initialized)
{
throw new InvalidOperationException("Initialize must be called before Draw");
}
_device.SetVertexBuffer(_vertexBuffer);
_device.SetIndexBuffer(_indexBuffer, false);
effect.World = ConversionUtility.ToSharpDXMatrix(_sourceMesh.Transform.Value);
effect.DiffuseColor = ConversionUtility.ToSharpDXVector3(_sourceMesh.Material.DiffuseColor);
effect.SpecularColor = ConversionUtility.ToSharpDXVector3(_sourceMesh.Material.SpecularColor);
effect.SpecularPower = _sourceMesh.Material.Shininess;
if (!string.IsNullOrEmpty(_sourceMesh.Material.DiffuseTextureName))
{
effect.TextureEnabled = true;
effect.Texture = _texture;
}
else
{
effect.TextureEnabled = false;
effect.Texture = null;
}
effect.Alpha = _sourceMesh.Material.Transparency;
foreach (var pass in effect.CurrentTechnique.Passes)
{
pass.Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _sourceMesh.Indices.Count);
}
_device.SetIndexBuffer(null, false);
_device.SetVertexBuffer((Buffer <VertexPositionNormalTexture>)null);
}