hehe.. this topic was resumed in another thread, but i thought i'd better continue it here.


discussion: me whining about my interpolation technique taking ages to compute on my non-top modern device. simplified interpolation was mentioned. it took about 3 minutes to make the modifications and try the alternative method.. documenting this to save other developers those minutes....


here's one octave rendered with fast and slow interpolation methods
interp1.jpg


8 octaves (first two octaves are unridged, subsequent are ridged)
interp2.jpg


..and just for fun, here's the fast interpolation without shaping the fractional component, as i've seen it described
interp3.jpg


pretty pictures any more serious developers are advised to investigate the simplex noise method.