Convert 2:1 equirectangular panorama to cube map

Question

I\'m currently working on a simple 3D panorama viewer for a website. For mobile performance reasons I\'m using the three.js CSS3 renderer. This requires a cube

Answer 1

I created a solution for this problem using OpenGL and made a command line tool around it. It works both with images and videos, and it is the fastest tool that I found out there.

Convert360 - Project on GitHub.

OpenGL Shader - The fragment shader used for the re-projection.

The usage is as simple as:

$ pip install convert360
$ convert360 -i ~/Pictures/Barcelona/sagrada-familia.jpg -o example.png -s 300 300

To get something like this: