The intersection of photography and computers generally connotes Photoshop and Instagram. The first is a tool for refining and altering photos, enabling manipulation far beyond what’s possible in the darkroom. The second is a sort of casual dumping ground, a worldwide clothesline sagging with millions of Polaroids. They share some basic features but work at cross-purposes: Photoshop is a process. Instagram is, well, instant. But both of them aspire to a photographic ideal that is well-lit, in-focus, correctly exposed, and depicting a visually interesting subject. Digital artist Daniel Temkin is taking a decidedly different tack with his project Light Pattern,…