k3d/share/shaders/k3d_volcube.sl:104:active_volume(point Pos; float vol_mult, vol_offset;)
k3d/share/shaders/k3d_volcube.sl:106:    return (noise((Pos+30.445)*2)-.5+vol_offset)*vol_mult;
k3d/share/shaders/k3d_volcube.sl:114:get_density(point Pos; float vol_mult, vol_offset;)
k3d/share/shaders/k3d_volcube.sl:120:    activeVol = active_volume(Pos,vol_mult,vol_offset);
k3d/share/shaders/k3d_volcube.sl:129:normal calcGradeNorm(point Pos; float vol_mult, vol_offset, dens, epsilon;)
k3d/share/shaders/k3d_volcube.sl:133:				    zcomp(Pos)),vol_mult,vol_offset) - dens,
k3d/share/shaders/k3d_volcube.sl:135:				    ycomp(Pos) - epsilon, zcomp(Pos)),vol_mult,vol_offset) - dens,
k3d/share/shaders/k3d_volcube.sl:137:				    ycomp(Pos), zcomp(Pos) - epsilon),vol_mult,vol_offset) - dens);
