: High-quality digital pillows use cloth physics to simulate internal air or down pressure. This ensures the pillow looks "full" rather than flat.

: Using upholstery-grade settings ensures the pillow holds its shape (a "solid" feel) rather than collapsing under its own weight. Comparison of Pillow Support Features

: A common designer aesthetic where the top center of the pillow is indented. Digitally, this is achieved by pinning specific vertices or using high-tension sewing lines to create a natural-looking fold.

: Professional designs often use a "hidden" or "piped" zipper. In 3D software like CLO3D , this involves a precise "Zip" tool that joins edges with a calculated offset to mimic real-world fabric overlaps.