Maple provides several choices for shading 3-D plots.

 XY varies the color as a function in terms of the X and the Y axes.
 XYZ varies the color along all three axes.
 Z varies the color from blue to red as a function of the Z axis.
 Z (Hue) varies the color through the entire spectrum as a function of the Z axis.
 Z (Grayscale) varies as a function of the Z axis.
 Default Coloring displays the XYZ shading scheme.
 No Coloring displays the surface in black and white. No shading is present.