How to use Generative Fill in Photoshop.

• Use the Selection Brush tool, or any other selection tool, to select an object or area in your image. Click the Generative Fill button that appears in the Contextual Task Bar.
• Write a prompt describing the object or scene you want to generate in the text-entry prompt box. Or leave it blank and Photoshop will fill in the selection based on the surroundings. To further customize your results in the Photoshop (beta) app, click on Reference Image and upload an example image containing desired content, like a jean jacket. Use just the image or combine it with a prompt to tailor your result even more.
• Click Generate. You’ll see thumbnail previews of variations generated based on your prompt, and a Generative Layer will be created in your Layers panel for nondestructive editing of your original image. To see variations of your favorite result, select it and then click on Generate Similar to see new versions of that image.