k3d/share/shaders/k3d_spacecloud.sl:12: *   endPulse -- end of pulse function
k3d/share/shaders/k3d_spacecloud.sl:50:  float endPulse = .9; /* .9 .8 .7 .8 */
k3d/share/shaders/k3d_spacecloud.sl:92:	Oi = value * smoothPulse2Fuzz (startPulse, endPulse, afuzz, afuzz, ss) * 
k3d/share/shaders/k3d_spacecloud.sl:93:		smoothPulse2Fuzz (startPulse, endPulse, bfuzz, afuzz, tt);
