k3d/share/shaders/k3d_softboxes.sl:64:    uniform float roundness;  /* Same roundness for both ellipses */
k3d/share/shaders/k3d_softboxes.sl:68:    if (roundness < 1.0e-6) {
k3d/share/shaders/k3d_softboxes.sl:73:	varying float re = 2/roundness;		/* roundness exponent */
k3d/share/shaders/k3d_uberlight.sl:64: *   roundness - controls how rounded the corners of the superellipse
k3d/share/shaders/k3d_uberlight.sl:67: *       perfect ellipse.  In-between values control the roundness of
k3d/share/shaders/k3d_uberlight.sl:130: *       control as the "roundness" parameter that affects the light
k3d/share/shaders/k3d_uberlight.sl:229:		       float roundness;	/* Same roundness for both ellipses */
k3d/share/shaders/k3d_uberlight.sl:236:      if(roundness < 1.0e-6)
k3d/share/shaders/k3d_uberlight.sl:241:      else if(roundness > 0.9999)
k3d/share/shaders/k3d_uberlight.sl:255:	  float re = 2 / roundness;	/* roundness exponent */
k3d/share/shaders/k3d_uberlight.sl:285:		       float hedge, wedge, roundness;
k3d/share/shaders/k3d_uberlight.sl:330:			     roundness);
k3d/share/shaders/k3d_uberlight.sl:381:		     float roundness = 1;
k3d/share/shaders/k3d_uberlight.sl:460:		       sheary, width, height, hedge, wedge, roundness,
