public Texture2D PerformBloom(Texture2D srcTexture)
{
effect.Parameters["Threshold"].SetValue(Threshold);
effect.Parameters["BloomIntensity"].SetValue(BloomIntensity);
effect.Parameters["OriginalIntensity"].SetValue(OriginalIntensity);
effect.Parameters["BloomSaturation"].SetValue(BloomSaturation);
effect.Parameters["OriginalSaturation"].SetValue(OriginalSaturation);
device.SetRenderTarget(bloomTexture);
spriteBatch.Begin(0, BlendState.Opaque, null, null, null, effect);
effect.CurrentTechnique = effect.Techniques["Bloom"];
effect.CurrentTechnique.Passes[0].Apply();
device.Clear(Color.Black);
spriteBatch.Draw(srcTexture, Vector2.Zero, Color.White);
spriteBatch.End();
Texture2D blurredTexture = bloomTexture;
if (gaussianBlur != null)
{
blurredTexture = gaussianBlur.PerformGaussianBlur(bloomTexture);
}
device.SetRenderTarget(bloomCombinedTexture);
spriteBatch.Begin(0, BlendState.Opaque, null, null, null, effect);
effect.CurrentTechnique = effect.Techniques["BloomCombine"];
effect.CurrentTechnique.Passes[0].Apply();
effect.Parameters["ColorMap"].SetValue(srcTexture);
device.Clear(Color.Black);
spriteBatch.Draw(blurredTexture, new Rectangle(0, 0, bloomTexture.Bounds.Width, bloomTexture.Bounds.Height), Color.White);
spriteBatch.End();
device.SetRenderTarget(null);
return((Texture2D)bloomCombinedTexture);
}
