AlphaStrip allows you to create a mask with wavy lines. Two types of waves are available: line waves and natural sea waves. You can adjust the period and height of waves, as well as distance between them.
You can create very interested waved masks. By means of this you can obtain sophisticate geometrical patterns like patterns on monetary denominations or something like. You can create multi layer compositions and combine several waved masks. And they patterns will correlate and create very interested and complicated geometrical patterns.
At this page you can see several examples of waves mask usages.