9.5.2

212 • CHAPTER 7
OBJECTS MENU • PRIMITIVES • 213
Relief
This command creates an object in the XZ plane that is similar to the landscape primitive. However,
in this case an image is used instead of fractals to generate the height. The relief map interprets the
different grayscales within the image as altitude values. If you choose a color image, the grayscale
is formed from the average value of the red, green and blue components of the bitmap picture. The
brighter the pixel, the higher the elevation; the darker the pixel, the deeper it lies within the scene. In
other words, darkness denes valleys, brightness is for mountains.
Patterns (left) for different reliefs (right).
Attribute manager settings
Object Properties
Texture
Click the button and use the le selector that opens to choose which image le should be used to
create the relief.