/// <summary>
/// Initializes a new instance of the <see cref="ShadowMap"/> class.
/// </summary>
public ShadowMap(GraphicsDevice graphics)
{
if (graphics == null)
{
throw new ArgumentNullException("graphics");
}
this.graphics = graphics;
this.depthMaterial = new DepthMaterial(graphics);
this.blur = new BlurMaterial(graphics);
this.fullScreenQuad = new FullScreenQuad(graphics);
#if SILVERLIGHT
this.SurfaceFormat = SurfaceFormat.Color;
#else
this.SurfaceFormat = SurfaceFormat.Single;
#endif
}
/// <summary>
/// Draws this pass using the specified drawing context.
/// </summary>
public override void Draw(DrawingContext context, IList <IDrawableObject> drawables)
{
var passes = context.Passes;
for (int i = 0; i < passes.Count; ++i)
{
if (passes[i].Enabled && passes[i] is LightPrePass)
{
return;
}
}
var graphics = context.graphics;
if (depthMaterial == null)
{
depthMaterial = new DepthMaterial(graphics);
}
var surfaceFormat = SurfaceFormat.Single;
if (depthBuffer == null || depthBuffer.IsDisposed || depthBuffer.IsContentLost)
{
if (depthBuffer != null)
{
depthBuffer.Dispose();
}
depthBuffer = new RenderTarget2D(graphics, graphics.Viewport.Width, graphics.Viewport.Height,
false, surfaceFormat, DepthFormat.Depth24Stencil8, 0, RenderTargetUsage.DiscardContents);
}
if (drawingPass == null)
{
drawingPass = new DrawingPass();
drawingPass.MaterialUsage = MaterialUsage.Depth;
}
depthBuffer.Begin();
graphics.Clear(Color.White);
drawingPass.Draw(context, drawables);
depthBuffer.End();
context.textures[TextureUsage.DepthBuffer] = depthBuffer;
}
void CameraUpdate()
{
//AspectRatio = (float)screenX / screenY;
if (SceneCamera)
{
DepthMaterial.SetFloat("_AspectRatio", SceneCamera.aspect);
ThisCamera.aspect = SceneCamera.aspect;
// ThisCamera.nearClipPlane = .01f;
// SceneCamera.nearClipPlane = .01f;
//ThisCamera.farClipPlane = SceneCamera.farClipPlane;
ThisCamera.nearClipPlane = SceneCamera.nearClipPlane;
#if UNITY_5_6_OR_NEWER
ThisCamera.allowHDR = SceneCamera.allowHDR;
#else
ThisCamera.hdr = SceneCamera.hdr;
#endif
ThisCamera.fieldOfView = SceneCamera.fieldOfView;
}
}
