final effect
1. Open the material shown in the picture below, click on the channel panel, and create a new Alpha 1 channel.
2. Select the custom shape tool, and then select your favorite shape from the shape drop-down menu in the property bar as shown below.
3. Draw the selection and fill it with white.
4. After canceling the selection, press Ctrl + T to adjust the angle appropriately, and then execute: Filter > Blur > Gaussian Blur, the value is 5.
5. Execute: Filter > Pixelate > Color Halftone, the value is the default.
