Colored balloons in $\widetilde{\mathrm{SL}(2,\mathbb{R})}$, related to the unit tangent bundle of the hyperbolic plane
Raymarching in the universal cover of SL(2,R), a Thurston model geometry with mixed curvature properties. Colored balloon spheres are placed in the space. The SL2 geometry is related to the unit tangent bundle of the hyperbolic plane, and its geodesics exhibit both hyperbolic and rotational features.
Controls: WASD to rotate, arrow keys to translate.