k3d/share/shaders/k3d_softboxes.sl:114:    varying point Pplane = Pb1 - Vlight*(zcomp(Pb1)/zcomp(Vlight));
k3d/share/shaders/k3d_softboxes.sl:135:	contrib = 1 - clipSuperellipse (Pplane, iW, iH, oW,oH, boxRoundness);
k3d/share/shaders/k3d_softboxes.sl:139:	    varying float theS = (oW+xcomp(Pplane))/(oW*2);
k3d/share/shaders/k3d_softboxes.sl:140:	    varying float theT = (oH-ycomp(Pplane))/(oH*2);
k3d/share/shaders/k3d_softboxes.sl:165:    varying point ppC = transform(boxCoords,"world",Pplane);
k3d/share/shaders/k3d_uberlight.sl:357:      point Pplane = Pb1 - Vlight * (zcomp(Pb1) / zcomp(Vlight));
k3d/share/shaders/k3d_uberlight.sl:359:	clipSuperellipse(Pplane, blockerwidth, blockerheight,
