Was just playing with Staale's Body Morpher1 mk.3 figure. It is a P4Fem figure with 3 skin material layers. A random noise bump map on the top layer with the Highlight & Ambient levels pumped up; and full transparency with no transmap, renders just the overexposed highlights from the .bum. They appear as little sparkley highlights like sweat or water spray on the skin without affecting the other two underlying material layers.