Post #2332776

How many texels are fetched when doing a texture-lookup in the fragment-shader? I think 2x2 was common across multiple GPUs? But maybe now it is even 4x4? Curious, because it would explain why 16 tap PCF runs so fast that my GPU makes the loudest coilwhine ever hear of. Doing 32 taps already cuts the framerate by 4! And 16 taps don't do anything to the framerate. So PCF at 16 taps is free (seemingly).