k3d/share/shaders/k3d_brick.sl:52:  float whichbrick;
k3d/share/shaders/k3d_brick.sl:67:  whichbrick = 103 * sbrick + tbrick;
k3d/share/shaders/k3d_brick.sl:131:  bcolor = brickcolor * (1 + (brickvary * snoise(whichbrick + 0.5)));
