Oh that scene is definitely a difficult case for the T(X)AA neighborhood filter. Try setting r.TXAA.UseRGB = 1, but I don’t expect it’ll become much better. Basically, the filter sees that the road has a range of colors from black to white, and the car falls roughly into the same range, so it’s considered to be road as well. It should be better if there is some chromatic difference between the car and the road.