Lighting

There are three different lighting options that can be used to display the existing and proposed terrain, as described below.

	Hard Lighting This option will light the terrain with hard edges. This lighting mode gives a clear representation of variations in slopes throughout the terrain and is particularly useful for validating defined levels.
	Soft Lighting This option will light the terrain with smoothed edges. This can give a visually attractive representation of the terrain. However, it can also smooth hard edges in the terrain which can provide an unrealistic representation of the ground levels.
	No Lighting This option turns off all lighting. This option is useful for clear representations (particularly in 2D) which show the difference in levels by colour and where the variation in slope does not need to be visualised.

Hard Lighting

This option will light the terrain with hard edges. This lighting mode gives a clear representation of variations in slopes throughout the terrain and is particularly useful for validating defined levels.

Soft Lighting

This option will light the terrain with smoothed edges. This can give a visually attractive representation of the terrain. However, it can also smooth hard edges in the terrain which can provide an unrealistic representation of the ground levels.

No Lighting

This option turns off all lighting. This option is useful for clear representations (particularly in 2D) which show the difference in levels by colour and where the variation in slope does not need to be visualised.