HDGL Hourglass · Solid Toroid · Interwoven Pipes · Dual-Funnel · Helix-Tangent Exits

Hot funnel (+z)

Cold funnel (−z)

Solid toroid body

Hot pipe coil

Cold pipe coil

Hot exit

Cold exit

Speed Trails Density

drag to rotate · solid torus + interwoven hot/cold coil pipes · dual helix-tangent exits