## PM3D plots

3D surfaces can also be drawn using solid pm3d quadrangles rather than lines. In this case there is no hidden surface removal, but if the component facets are drawn back-to-front then a similar effect is achieved. See set pm3d depthorder (p. ). While pm3d surfaces are by default colored using a smooth color palette (see set palette (p. )), it is also possible to specify a solid color surface or to specify distinct solid colors for the top and bottom surfaces as in the figure shown here. See pm3d fillcolor (p. ). Unlike the line-trimming in hidden3d mode, pm3d surfaces can be smoothly clipped to the current zrange. See set pm3d clipping (p. ).