
Antonio G. answered 05/01/19
Illustrator/Artist/Designer
Hey there. Well first you're gonna have to do Filter > Vanishing Point. Next change the grid size to the desired increments. Afterwards you have to double click on the grid tool itself. render grids to Photoshop. Click Ok.
Now a grid will appear on your document as a real pixel layer.
You can also change the color of the grid.
Hope this helps!