Portal

Portal opens a wormhole beneath an object: a glowing funnel of swirling matter that dips down to a throat, and through the throat a view of another universe, a slow nebula and stars, squeezed toward its rim into a thin bright ring. Matter streams in along spiral arms, heating up and turning bluer as it falls.

How it works

The funnel takes the shape physicists use to picture a wormhole's throat: steep near the opening and flattening out further away. The swirl turns faster close to the throat than at the edge. Inside the throat the other side is shown like a fisheye view, compressed hardest at the edge where light is bent the most, which forms the bright ring. Particles of matter spiral inward and glow hotter and bluer toward the centre.

Settings

• Radius: the size of the portal relative to the object.
• Throat Size and Funnel Depth: the opening, and how deep the funnel dips.
• Spiral Turns: how tightly the arms wind.
• Rotation Speed: the swirl and the infall.
• Inner Glow Color and Outer Glow Color: the hot centre and the cool edge.
• Other Side Color: the nebula seen through the throat.
• Particle Ring Enabled and Particle Count: the infalling matter.

Use it for

Sci-fi gates and rifts, teleport moments, fantasy portals, cosmic hero sections. The Portal object effect sends an object through one, and the Black Hole is built on the same bending of light.