This effect takes place within a single shader, which is kind of cool. You'll find similar shaders on shadertoy: https://www.shadertoy.com/results?query=black+

This effect takes place within a single shader, which is kind of cool. You'll find similar shaders on shadertoy: https://www.shadertoy.com/results?query=black+hole https://www.shadertoy.com/results?query=black+hole The top one, "Gargantua With HDR Bloom", looks very nice. This one looks good too and shows redshift more extremely: https://www.shadertoy.com/view/ws2GWD https://www.shadertoy.com/view/ws2GWD And this one shows light trajectories: https://www.shadertoy.com/view/wdt3zM https://www.shadertoy.com/view/wdt3zM