Part 4 of Gunstar Red’s isometric pixel-art series covers building basic shapes in Photoshop. It shows how to make boxes by duplicating a top face, shifting the copy down, and joining edges with vertical lines; how to draw triangles with the 1-up-2-across rule and gentler single-pixel slopes; and how to construct isometric circles and upright tubes with the Marquee tool, plus other simple isometric forms.
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