If painting with a paint roller, it is usually desirable to maximize the roller texture and minimize brush strokes. But how do you do this?
Easy. Paint the corners first.
Regardless if you use a brush, or special applicator for corners, or something else, paint the corners first and then roller as far into the corner as the roller can reach. This means only a small section of the corner won’t have the desired roller texture.
As I think two coats of paint are always required, I usually paint the corners first then roller regardless of if the corners have completely dried. Then I do the exact same thing for the second coat. If the corners are particularly tricky, I may do a third coat on the corners, even if the walls only get two coats. In that case, I usually paint the corners and the walls, do a second coat just in the corners, then a third coat of painting the corners then the walls- similar to the first coat.
And although I mention just corners, this technique applies to anywhere a brush is used: around outlets, around trim, etc.
Roller texture achieved.