k3d/share/shaders/k3d_cyclone.sl:1:#define TWOPI (2*PI)
k3d/share/shaders/k3d_cyclone.sl:32:      angle = PI + twist * TWOPI * (max_radius - dist) / max_radius;
k3d/share/shaders/k3d_luna.sl:30:#define TWOPI (6.28)
k3d/share/shaders/k3d_planetclouds.sl:56:#define TWOPI (2*PI)
k3d/share/shaders/k3d_venus.sl:46:#define TWOPI (2*PI)
k3d/share/shaders/k3d_venus.sl:74:  angle = twist * TWOPI * rsq;
k3d/share/shaders/k3d_venus2.sl:44:#define TWOPI (2*PI)
k3d/share/shaders/k3d_venus2.sl:76:  angle = twist * TWOPI * rsq;
