public void Process(GraphicsDevice g, RenderTarget2D sceneTarget)
{
// extract brightest parts of the scene
g.SetRenderTarget(0, rTarget1);
Texture2D sceneTexture = sceneTarget.GetTexture();
ppManager.RenderScreenQuad(e, luminosityExtractTechnique, sceneTexture);
// blur the luminosity extract horizontally
g.SetRenderTarget(0, rTarget2);
e.Parameters["fWeights"].SetValue(horizontalBlurParameters.Weights);
e.Parameters["vOffsets"].SetValue(horizontalBlurParameters.Offsets);
ppManager.RenderScreenQuad(e, gaussianBlurTechnique, rTarget1.GetTexture());
// blur the luminosity extract vertically
g.SetRenderTarget(0, rTarget1);
e.Parameters["fWeights"].SetValue(verticalBlurParameters.Weights);
e.Parameters["vOffsets"].SetValue(verticalBlurParameters.Offsets);
ppManager.RenderScreenQuad(e, gaussianBlurTechnique, rTarget2.GetTexture());
// combine blurred luminosity extract with scene
g.SetRenderTarget(0, null);
g.Textures[1] = sceneTexture;
ppManager.RenderScreenQuad(e, compositeTechnique, rTarget1.GetTexture());
}
