What is it ? :
This transform produce patterns formed with intricated polygonal rings.
The idea is the same as in Intricated Rings. Some
well known islamic patterns can be reproduced.
The Parameters :
Ring Type : Choose the shape of the rings and, in the case of square rings, the way they are linked.
Ring Size / Width / Rotation : Be careful with these parameter, if the rings are too big or too thick, some strange things may occur.
Mapping Center / Rotation / Magnification : Allow you to choose which part of the underlying image will be mapped.
Mask : When enabled, the rings won't cover the whole plane anymore, but will be confined in a region called the mask. It can be useful if you don't want the rings to get out of the screen (see the example).
Mask Polygon Order / Center / Rotation / Size : To determine the mask. "Mask Polygon Order" define the polygon (3 for a triangle, 4 for a square, etc...). It has no effect with the Circle.
Stabilize ? : The images mapped on the rings have all the same direction.
It has an effect only with the "intricated" mode and with triangular rings.
Remark : To get real looking rings, use the intricated mode together
with the "Polygonal Gradient" coloring in sam.ucl (on a "pixel" formula).
The order parameter of the transform and the coloring must match (see the