92     flt t, s, tin, tout, ln, d;  in cylinder_intersect()  local
121         VDOT(t, O, n);  in cylinder_intersect()
122         t = -t / ln;  in cylinder_intersect()
127         tin = t - s;  in cylinder_intersect()
129         tout = t + s;  in cylinder_intersect()
136     flt t;  in cylinder_normal()  local
144     VDOT(t, a, c);  in cylinder_normal()
146     b.x = c.x * t + cyl->ctr.x;  in cylinder_normal()
147     b.y = c.y * t + cyl->ctr.y;  in cylinder_normal()
148     b.z = c.z * t + cyl->ctr.z;  in cylinder_normal()
205     flt t, s, tin, tout, ln, d, tmp, tmp3;  in fcylinder_intersect()  local
226         VDOT(t, O, n);  in fcylinder_intersect()
227         t = -t / ln;  in fcylinder_intersect()
232         tin = t - s;  in fcylinder_intersect()
248         tout = t + s;  in fcylinder_intersect()