Destructive editing is directly editing an image without the use of layers. Although faster than non-destructive editing; it’s much harder to get rid of mistake in your editing without messing with the rest of the image.
Non-Destructive editing uses layers to edit an image. This usually takes up more time to do this specific edit compare to a destructive edit. It is easier and more organized when fixing up mistakes made while doing a non-destructive edit.
There two tools that can be used to remove the background, The quick selection tool and the polygonal lasso tool.
The quick selection, although quick and easy, can pick up pixel similar to the sky which some of the buildings are similar to the sky. The quick selection can completely remove some of the buildings which you wouldn’t want to do.
Then there’s the magic wand tool, this is also quick to use but is a lot stricter with the pixel selection, so you are less likely to cut out any of the buildings from the original selection.
To select the quick selection tool, the short cut is “W” on the keyboard. There is also the magic wand tool under the quick selection which I mentioned before to be a lot stricter with the selection.
You can add to a selection by holding down shift while adding on from your already made selection. This is helpful as all your selection may not be together for you to select.
You can subtract to a selection by holding down alt while deleting from your already made selection. This is helpful when you have more than what you wanted to select and can make your selection more precise.
One way you can refine a selection is by using the refine edge tool. You can use the refine edge tool in which of course refines the edge of your selection in case you can’t select all the detail just with the selection tool.
Anti-alias is a tool used to stop a selection from losing its quality while editing. As when editing the selection with transform, it can lose quality.
Hollie Hurwood's Game Design course work 