Exact Geodesic Ray Tracing of Radiance Foams in Constant-Curvature Spaces
Scene
A captured scene, ray traced along exact geodesics of hyperbolic, flat and spherical space. Explore bends the space freely · Guess drops you in a hidden universe and asks which one · Choose picks a universe to walk. Walk with WASD, look by dragging, Esc for help.
CRaFT
Curved Radiance Foam Tracing
Curvature of space▼
flatopen space
hyperbolicflatspherical
Render distance 14 m
Detail
Guess the universe
Round 1 · score 0
You have been dropped into a hidden universe. Walk around, watch how the room repeats and how walls meet, then say which one it is. Wall tints are off and the map hides the domain.
W A S D walk · drag look · shift run · click the map to enlarge · Esc help
CRaFT — controls
WASD walk · shift run · drag the mouse to look
G universe gallery · M enlarge the map · C collapse the controls · ` developer panel · Esc close
The scene is a Power Foam reconstruction. Each cell is traversed with closed-form geodesic intersections (planes: Eq. 6, balls: Eq. 7) in H³, E³ or S³; closed universes are fundamental domains with face pairings. See docs/WRITEUP.md.