k3d/share/shaders/k3d_craters.sl:26:   float distortamp = 0.0005; /* Crater distortion.  You'll get artifacts if it goes too high. */
k3d/share/shaders/k3d_craters.sl:88:	if (distortamp != 0)
k3d/share/shaders/k3d_craters.sl:90:	    rrad1 += fBm_default(P*sc)*asc*distortamp; /* add crater roughness */
k3d/share/shaders/k3d_craters.sl:91:	    rrad2 += fBm_default(P*sc)*asc*distortamp; 
