Occlusion

Overview

The Occlusion distribution samples an ambient occlusion map of the terrain for masking crevices or mountain ridges.

Parameters

• Random Samples Uses random samples instead of fixed steps. Can improve performance but causes grain on lower values.

• Horizontal Steps The number of horizontal steps in the occlusion computation.

• Vertical Steps The number of vertical steps in the occlusion computation.

• Steps Multiplier for the overall steps.

• Grain Controls the amount of grain in the final mask.

• Occlusion Range Allows you to clamp the result of the ao calculation.

• Radius The sampling radius of the ao algorithm. Smaller values capture smaller scale details, while larger values result in the detection of large scale terrain features.

• Flatten Improves detection of detail in flat areas.

Results