SBGT Stony Ballasty Ground Texture
A general ground texture representing a type of terrain often found in railway environs, with a 3d texture provided by an added normal map. It can be applied as it is, but for best results you may find one or other of the following techniques useful. Either press your keyboard [ or ] keys while applying a general layer, then 'touch in' a few small radius, differently scaled textured dabs with randomly dialled direction settings to break up the uniformity further, or else select an area, then fill it before going back over the result with a smaller radius, larger scaled version of the same texture using the [ or ] keys and painting with an up and down, side to side or zigzag scrubbing motion.