Black Hole

PHYSICSStudio

A relativistic black hole simulator featuring gravitational lensing, Doppler beaming, and photon ring physics.

UpdatedJan 2025

ExportsPNG

Runs onAny browser

PriceFree

Overview

A dynamic physics playground.

Black Hole is an interactive relativistic simulator. It features real-time gravitational lensing (Einstein ring light deflection), warping background stars behind the shadow.

It also models relativistic Doppler beaming, making matter rotating towards the observer brighter and bluer (blueshift) and receding matter dimmer and redder (redshift). Tweak accretion suction, Schwarzschild gravity, event horizon size, and configure bipolar relativistic jets with custom temperature profiles.

Features

Built for physics-scale experimentation.

01 / Spotlight

Relativistic lensing

Real-time General Relativity light bending visible around the event horizon.

Doppler boosting

Relativistic Doppler beaming and redshift based on line-of-sight velocity.

Event horizon features

Configurable photon orbit ring, event horizon silhouette, and bipolar jets.

Accretion particles

Glowing accretion disk with temperature-based color profiles.

How to use

Workflow

Steps take about a minute.

Rotate the camera in 3D to see how gravitational lensing warps the accretion disk around the event horizon. Tune Schwarzschild gravity, accretion suction, and disk boundaries. Adjust lensing strength, Doppler beaming intensity, or enable relativistic jets in the sidebar controls.

Use cases

What people use it for

Demonstrating gravitational lensing and General Relativity concepts visuallyExploring relativistic Doppler beaming and redshift in accretion disksSimulating matter accretion, event horizon capture, and relativistic jetsGenerating sci-fi film style black hole visuals and stills

FAQ

Common questions

Why does the back of the accretion disk appear warped above and below the black hole?+

This is gravitational lensing. General relativity states that a massive body bends spacetime and light paths. Light from the back of the disk is bent around the event horizon towards the camera, producing the classic Interstellar halo look.

What causes the disk to be much brighter on one side?+

This is relativistic Doppler beaming (or Doppler boosting). Matter rotating towards the camera at a fraction of the speed of light is blueshifted and appears brighter, while receding matter is redshifted and appears dimmer.