postion-based bump shader 0.5 0.5 0.5 2.2 BasisType Noise Basis Type. 0 == Perlin, 1 = Ridged, 2 = Voronoi 0 2 0 H Determines fractal dimension 0 10 1 Lacunarity Gap between successive frequencies 0 20 2 NumOctaves Max number of octaves of noise to mix in. 0 20 8 Freq Base Frequency 0 1000 100 Height Max height of the surface 0 0.1 0.001