In this example we used a grayscale JPG image map that was downloaded from a USGS website, as shown in Figure 2.

• Click the OK button to exit back to the Displacement Edit dialog.
• Click the Deselect All Faces button.
All the faces of the object become ghosted in the preview window.
• In the preview window click any two edges on the top face of the box.

By selecting just the top face, the displacement will be applied only to this part of the object.

• Set Horizontal Tiling Size = 1’-0” and select Center.
• Set Vertical Tiling Size = 1’-0” and select Center.
This maps the displacement image the same size as the box and centers it in on the object.
• Set Min = 0’-0” and Max = 1”

These values determine how far the surface is dis­placed inward or outward. The grayscale value in the displacement map indicates the amount of dis­placement applied to a point, where black indicates minimum displacement and white represents maximum displacement. Any grayscale value in between black and white is interpolated between the Min and Max values respectively.
• Select Adaptive Meshing.

This generates additional sub-division of the mesh during the displacement process. The adaptive na­ture results in form•Z applying different amounts of meshing on different areas of the surface based on the amount of deviation in the grayscale image in that area.

• Set Max Segment Length = 1/16”.
This value controls the size of the mesh gener­ated.
• Click the Displaced button and the displaced ob­ject is displayed in the preview window, as shown in Figure 3.