Dragon corridor v1
A legless, wingless dragon racing down an endless square corridor, weaving around smoked-glass obstacles.
The whole scene is one full-screen raymarch — sphere-tracing for the solids, an analytic pass for the translucent glass. The corridor is an infinite square tube, and it never moves: on-axis rays never hit a wall, so the four walls converge to a vanishing point on their own, and the entire sense of flight comes from shading them as a function of distance travelled.
The dragon is the pipes braid re-aimed down the z axis — a bundle of tubes wound helically around a moving centreline, straightened for the distance field by the untwist trick. It weaves to sit in the open half of whichever obstacle it is passing, hesitates before committing, bunches mass around the corner it takes, and never stops swimming.
