private void BlurLightMaps(Light light)
{
graphics.GraphicsDevice.SetRenderTarget(horizontalBlurTarget);
graphics.GraphicsDevice.Clear(Color.CornflowerBlue);
//Set some params
horizontalBlur.Parameters["LightPos"].SetValue(light.Position);
horizontalBlur.Parameters["Radius"].SetValue(light.Radius);
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.Opaque, null, null, null, horizontalBlur);
spriteBatch.Draw(postProcessTarget, fullScreen, Color.White);
spriteBatch.End();
graphics.GraphicsDevice.SetRenderTarget(verticalBlurTarget);
graphics.GraphicsDevice.Clear(Color.CornflowerBlue);
//Set some more params
verticalBlur.Parameters["LightPos"].SetValue(light.Position);
verticalBlur.Parameters["Radius"].SetValue(light.Radius);
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.Opaque, null, null, null, verticalBlur);
spriteBatch.Draw(horizontalBlurTarget, fullScreen, Color.White);
spriteBatch.End();
}
private void AccumulateLightMaps(Light light)
{
graphics.GraphicsDevice.SetRenderTarget(lightMap);
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.Additive, null, null, null);
spriteBatch.Draw(verticalBlurTarget, fullScreen, light.Color);
spriteBatch.End();
}