#147Curtain Sweep

A curtain rises along a diagonal, its soft edge rippling like drawn fabric, and as it passes it wipes a warm organic haze away to reveal a cool ruled blueprint beneath. A thin bright highlight line rides the moving fold, and each cycle alternates which image is uncovered so the sweep loops A→B→A gently and forever. Scrolling tilts the sweep direction, the pointer nudges its progress, and a held press draws the curtain faster.