protected override void OnRenderPre(IRenderer renderer)
{
base.OnRenderPre(renderer);
ICamera oldCam = renderer.CurrentCamera;
lightCam.Viewport = new Viewport(0, 0, shadowMap.Width, shadowMap.Height);// oldCam.Viewport;
lightCam.SetFrame(sl.Position, Matrix.LookAt(sl.Position, Vector3.Zero, Vector3.Up));
lightCam.SetProjection(ProjectionMode.Orthographic, 400, 400, 1.0f, 1000.0f);
// lightCam.SetProjection(45f, 1f, 500f);
lightCam.Update();
Viewport viewport = lightCam.Viewport;
float invWidth = (viewport.Width > 0) ? (1f / ((float)viewport.Width)) : 0f;
float invHeight = (viewport.Height > 0) ? (-1f / ((float)viewport.Height)) : 0f;
Matrix matrix = new Matrix();
matrix.M11 = invWidth * 2f;
matrix.M22 = invHeight * 2f;
matrix.M33 = 1f;
matrix.M44 = 1f;
matrix.M41 = -1f;
matrix.M42 = 1f;
matrix.M41 = matrix.M41 - invWidth;
matrix.M42 = matrix.M42 - invHeight;
Matrix projection = Matrix.CreateOrthoMatrix(0, viewport.Width, viewport.Height, 0, 0, 1);
blurEffect.Parameters["SpriteTransform"].SetValue(projection);
Matrix ortho = Matrix.CreateOrthoMatrix(30, 30, 1.0f, 200f);
Matrix view = Matrix.CreateViewMatrix(sl.Position, Vector3.Zero, Vector3.Up);//Matrix.LookAt(sl.Position, Vector3.Zero, Vector3.Up);
Matrix viewproj = view * ortho;
Matrix viewprojcam = lightCam.ViewProjectionMatrix;
renderer.CurrentCamera = lightCam;
renderer.SetRenderTarget(shadowMap);
renderer.Clear(Color.White);
renderer.EnforcedMaterial = shadowMat;
renderer.EnforcedDepthStencilState = dss;
if (cullFront)
{
renderer.EnforcedRasterizerState = rs;
}
mesh.Render(renderer);
renderer.ClearEnforcedStates();
renderer.EnforcedMaterial = null;
/*
* //Pass 2 - Draw from shadow to blur rt blur horizontally
* renderer.EnforcedRasterizerState = RasterizerState.CullNone;
* renderer.SetRenderTarget(blurRT);
* SetBlurEffectParameters(1.0f / (float) blurRT.Width, 0);
* DrawFullScreenQuad(shadowMap, BlendState.Opaque, blurRT.Width, blurRT.Height, blurEffect);
*
* //Pass 3 - Draw from blurRT to shadowmap, blur vertically
* renderer.SetRenderTarget(shadowMap);
* SetBlurEffectParameters(0, 1.0f / (float) shadowMap.Height);
* DrawFullScreenQuad(blurRT, BlendState.Opaque, shadowMap.Width, shadowMap.Height, blurEffect);
*/
renderer.CurrentCamera = oldCam;
renderer.SetRenderTarget(null);
receiverMat.SetParameter("LightVP", lightCam.ViewProjectionMatrix);
receiverMat.SetParameter("LightDirection", sl.Direction);
receiverMat.SetParameter("ShadowMap", shadowMap);
}
protected virtual void Render(IRenderer renderer)
{
//Get the window's swap chain
SwapChain swapChain = _window.SwapChain;
//Primary drawing to the window, sets the backbuffer render targets and clears them
swapChain.Clear(_clearColor);
if (_wireFrame)
{
renderer.EnforcedRasterizerState = RasterizerState.CullNoneWireframe;
}
OnRenderPre(renderer);
//Draw the scenegraph
_rootNode.Draw(renderer);
//Debbuging for bounding volumes
if (_debugBounds)
{
GeometryDebugger.DrawBounds(_rootNode, renderer);
}
//Debugging for normals and tangents/binormals if they exist for the mesh
if (_debugNormals)
{
GeometryDebugger.DrawTangentBasis(_rootNode, renderer);
}
if (_wireFrameSolid)
{
renderer.RenderQueue.SortAndRender();
//renderer.EnforcedRasterizerState = RasterizerState.CullNoneWireframe;
RasterizerState rs = new RasterizerState();
rs.Cull = CullMode.None;
rs.DepthBias = -100;
rs.SlopeScaledDepthBias = 5f;
rs.Fill = FillMode.WireFrame;
renderer.EnforcedRasterizerState = rs;
renderer.EnforcedMaterial = _wireFrameSolidMat;
renderer.RenderQueue.RenderBuckets();
renderer.RenderQueue.ClearBuckets();
renderer.ClearEnforcedStates();
renderer.EnforcedMaterial = null;
}
else
{
//Finally sort the render queue and draw remaining elements
renderer.RenderQueue.SortRenderClear();
}
//Any extra rendering
OnRenderPost(renderer);
if (_wireFrame || _wireFrameSolid)
{
renderer.ClearEnforcedState(RenderStateType.RasterizerState);
}
//Lastly, draw GUI - we do this via a spritebatch and do it last
//so it's rendered over everything (including anything from OnRender()
DrawInstructions(renderer);
//Present to the window
swapChain.Present();
//Count the frame for FPS display
CountFrame();
}
