public void Render(RenderTarget2D pLightRT, RenderTarget2D pAlbedoRT, RenderTarget2D pNormalRT, RenderTarget2D pDepthRT, Camera pCamera)
{
mGame.GraphicsDevice.SetRenderTarget(pLightRT);
mGame.GraphicsDevice.Clear(Color.Transparent);
mGame.GraphicsDevice.BlendState = BlendState.AlphaBlend;
mGame.GraphicsDevice.DepthStencilState = DepthStencilState.None;
mDirectionalLightEffect.Parameters["AlbedoMap"].SetValue(pAlbedoRT);
mDirectionalLightEffect.Parameters["NormalMap"].SetValue(pNormalRT);
mDirectionalLightEffect.Parameters["DepthMap"].SetValue(pDepthRT);
mDirectionalLightEffect.Parameters["LightDirection"].SetValue(new Vector3(0.5f, -0.3f, 0.0f));
mDirectionalLightEffect.Parameters["Color"].SetValue(new Vector3(0.9f, 0.5f, 0.3f));
mDirectionalLightEffect.Parameters["CameraPosition"].SetValue(pCamera.Position);
mDirectionalLightEffect.Parameters["InvertViewProjection"].SetValue(Matrix.Invert(pCamera.View * pCamera.Projection));
mDirectionalLightEffect.Parameters["HalfPixel"].SetValue(mHalfPixel);
mDirectionalLightEffect.Techniques[0].Passes[0].Apply();
mQuadRenderer.Render(Vector2.One * -1, Vector2.One);
DrawPointLight(pAlbedoRT, pNormalRT, pDepthRT, pCamera, pCamera.Position - Vector3.UnitZ * 150, Color.Blue, 100, 1);
mGame.GraphicsDevice.BlendState = BlendState.Opaque;
//mGame.GraphicsDevice.DepthStencilState = DepthStencilState.Default;
mGame.GraphicsDevice.SetRenderTarget(null);
}
public override void Initialize()
{
mCamera = new Camera(mGame, true);
Game.Components.Add(mCamera);
base.Initialize();
}
private void DrawPointLight(RenderTarget2D pAlbedoRT, RenderTarget2D pNormalRT, RenderTarget2D pDepthRT, Camera pCamera, Vector3 pPosition, Color pColor, int pRadius, int pIntensity)
{
// Set-up light buffer render targets.
mPointLightEffect.Parameters["AlbedoMap"].SetValue(pAlbedoRT);
mPointLightEffect.Parameters["NormalMap"].SetValue(pNormalRT);
mPointLightEffect.Parameters["DepthMap"].SetValue(pDepthRT);
// Compute the light world matrix.
// Scale according to the radius and translate it to light position.
Matrix sphereToWorldMatrix = Matrix.CreateScale(pRadius) * Matrix.CreateTranslation(pPosition);
mPointLightEffect.Parameters["World"].SetValue(sphereToWorldMatrix);
mPointLightEffect.Parameters["View"].SetValue(pCamera.View);
mPointLightEffect.Parameters["Projection"].SetValue(pCamera.Projection);
mPointLightEffect.Parameters["LightPosition"].SetValue(pPosition);
mPointLightEffect.Parameters["Color"].SetValue(pColor.ToVector3());
mPointLightEffect.Parameters["LightIntensity"].SetValue(pIntensity);
mPointLightEffect.Parameters["LightRadius"].SetValue(pRadius);
// Parameters for specular computations.
mPointLightEffect.Parameters["CameraPosition"].SetValue(pCamera.Position);
mPointLightEffect.Parameters["InvertViewProjection"].SetValue(Matrix.Invert(pCamera.View * pCamera.Projection));
// Size of a half pixel, for texture alignement.
mPointLightEffect.Parameters["HalfPixel"].SetValue(mHalfPixel);
// Calculate the distance between the camera and the light center.
float cameraToCenter = Vector3.Distance(pCamera.Position, pPosition);
// If we are inside the volume, draw the sphere's inside face.
if (cameraToCenter < pRadius)
mGame.GraphicsDevice.RasterizerState = RasterizerState.CullClockwise;
else
mGame.GraphicsDevice.RasterizerState = RasterizerState.CullCounterClockwise;
mPointLightEffect.Techniques[0].Passes[0].Apply();
foreach (ModelMesh mesh in mSphereModel.Meshes)
{
foreach (ModelMeshPart meshPart in mesh.MeshParts)
{
mGame.GraphicsDevice.Indices = meshPart.IndexBuffer;
mGame.GraphicsDevice.SetVertexBuffer(meshPart.VertexBuffer);
mGame.GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, meshPart.NumVertices, meshPart.StartIndex, meshPart.PrimitiveCount);
}
}
mGame.GraphicsDevice.RasterizerState = RasterizerState.CullCounterClockwise;
}
public void Render(RenderTarget2D pAlbedoRT, RenderTarget2D pNormalRT, RenderTarget2D pDepthRT, Camera pCamera)
{
mGame.GraphicsDevice.SetRenderTargets(pAlbedoRT, pNormalRT, pDepthRT);
// Clear GBuffer.
mClearBufferEffect.Techniques[0].Passes[0].Apply();
mQuadRenderer.Render(Vector2.One * -1, Vector2.One);
foreach (DeferredSprite sprite in Engine.Instance.CurrentScene.Sprites)
{
mRenderBufferEffect.Techniques[0].Passes[0].Apply();
Texture2D diffuse;
Texture2D normal;
Texture2D specular;
MaterialManager.GetTextures(sprite.MaterialId, out diffuse, out normal, out specular);
mRenderBufferEffect.Parameters["DiffuseMap"].SetValue(diffuse);
mRenderBufferEffect.Parameters["NormalMap"].SetValue(normal);
mRenderBufferEffect.Parameters["SpecularMap"].SetValue(specular);
mRenderBufferEffect.Parameters["World"].SetValue(Matrix.CreateTranslation(sprite.Position));
mRenderBufferEffect.Parameters["View"].SetValue(pCamera.View);
mRenderBufferEffect.Parameters["Projection"].SetValue(pCamera.Projection);
// Set Render States.
mGame.GraphicsDevice.DepthStencilState = DepthStencilState.Default;
mGame.GraphicsDevice.RasterizerState = RasterizerState.CullCounterClockwise;
mGame.GraphicsDevice.BlendState = BlendState.Opaque;
foreach (ModelMesh mesh in mGround.Meshes)
{
foreach (ModelMeshPart meshPart in mesh.MeshParts)
{
//meshPart.VertexBuffer.VertexDeclaration
mGame.GraphicsDevice.Indices = meshPart.IndexBuffer;
mGame.GraphicsDevice.SetVertexBuffer(meshPart.VertexBuffer);
mGame.GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, meshPart.VertexOffset, 0, meshPart.NumVertices, meshPart.StartIndex, meshPart.PrimitiveCount);
}
}
}
// Resolve Render Targets.
mGame.GraphicsDevice.SetRenderTargets(null);
}
