Verify the OpenGL Version of Your Graphics Card

It is not necessary to "install" openGL or GLSL, but it is necessary to ensure that
your graphics card support at lease version 4.3 of openGL. If you do not know what
openGL version your machine supports, you can use OpenGL Extensions Viewer [GLView]
to find out.

1.  Download and install the latest version of GLView at

      https://realtech-vr.com/admin/glview (free of charge)

2.  Execute GLView by double-clicking "openglex.exe" in the folder

      C:\Program Files (x86)\realtech VR\OpenGL Extensions Viewer 6.3

3.  Once the execution stops, check the OpenGL version (the green box) of the GPU
 

glview