k3d/share/shaders/k3d_leather.sl:48:	float small_noise, blotch, speck, disp = 0, blackness;

k3d/share/shaders/k3d_leather.sl:148:	blackness = 1-(smoothstep(BEDGE, BEDGE+BWIDTH, t)*

k3d/share/shaders/k3d_leather.sl:158:	cs = mix(cs, black, blackness);

k3d/share/shaders/k3d_redapple.sl:65:	float small_noise, blotch, speck, disp = 0, blackness;
k3d/share/shaders/k3d_redapple.sl:172:	blackness = 1-(smoothstep(BEDGE, BEDGE+BWIDTH, t)*
k3d/share/shaders/k3d_redapple.sl:182:	cs = mix(cs, black, blackness);
