Applying four point transparency
Four point transparency is one of the types of transparency you can use.
To apply four point transparency
1. Select the object (see Selecting objects).
2. Choose the Transparency Tool.
3. Choose Four point from the Transparency Shape drop-down list on the Transparency Tool Infobar.
4. Drag from the center of the transparency. This creates a square of four transparency handles, each with their own transparency levels. A pair of transparency arrows shows you the angles of the sides of the square. The four handles will always stay in the form of a parallelogram.
5. If you want a repeating transparency pattern, select Repeating from the Transparency Tiling drop-down list.
For details of how to edit four point transparency, see Changing four point transparency.