k3d/share/shaders/k3d_oakplank.sl:80:		   output float splank, tplank;)
k3d/share/shaders/k3d_oakplank.sl:84:  splank = ss - swhichplank * plankwidth;
k3d/share/shaders/k3d_oakplank.sl:129:   * the (splank,tplank) coordinates (both on [0,1]) within our tile.
k3d/share/shaders/k3d_oakplank.sl:131:  float swhichplank, twhichplank, splank, tplank;
k3d/share/shaders/k3d_oakplank.sl:134:			       swhichplank, twhichplank, splank, tplank);
k3d/share/shaders/k3d_oakplank.sl:137:    point(splank - 0.5, height - 0.01 * tplank, tplank) + vector(1, 5,
k3d/share/shaders/k3d_oakplank.sl:154:			       plankwidth, splank);
