A new layer appears, and then the small eyes in front of the old layer are turned off, and the background is gone.

Then double-click the new layer, open the layer style, check the projection, set the value inside, and the angle can also be set. Hook the preview in the lower right corner, and modify the value while watching the effect to get the effect you want.

Finally, create a new layer under the new layer and fill it with white. Otherwise, the background color is colorless checkerboard.