Rendered in Mandelbulb-3D as a 360° Panorama image, later I unwrapped the image in Blender on a sphere object, then I just uploaded to Sketchfab, done ^^.
Mandelbulb 3D is a free and awesome software to create 3D fractal images :)
http://mandelbulb.com/
Mandelbulb 3D Panorama 2
Mandelbulb 3D Panorama 4
Mandelbulb 3D Panorama 7
Mandelbulb 3D Panorama 5
Mandelbulb 3D Panorama 6
Mandelbulb 3D Panorama 8
Mandelbulb 3D Panorama 1
Mandelbulb 3D Panorama 3