The render of this panel was really puzzling me as I didn’t render interiors since…so many years.
I made a first try with soft gradients of gray I posted on my facebook page but neither me nor readers were convinced. So I gave it another try.
The goal was to avoid gradients which are everything but line art (and they also print very bad). So I went for high black and white threshold.
To do so I made my own brushes in photoshop. It really worked really smoothly and I’m pretty happy with the result !