Black Hole Lensing - Free Online | FunToolX
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About this tool
Black Hole Lensing is a free online visual effect. A black hole bends light with its immense gravity, stretching background starlight into a glowing Einstein ring. Interactive eye-candy rendered live on your screen. It runs entirely in your browser — no download or sign-up needed.
When opening the page, it will display a black hole. The surrounding starlight and matter are bent by the black hole's gravity, forming the effects of Einstein's rings and accretion disks. Parameters such as black hole mass and observation angle can be adjusted.
The whole process is purely front-end animation, based on WebGL's shader program, which uses the gravitational lens equation to calculate the curved path of the light.
It is suitable for use as astronomy science popularization, science fiction style decoration, or purely appreciating the gravitational lens effect of black holes. The implementation principle is a simplified version of the Schwarzschild metric.
Black hole is a visual effect that simulates the gravitational lensing effect of black holes. It is based on a WebGL shader to render the effect of light being bent by the black hole in real time.