RTDXT Setup - CESNET/UltraGrid GitHub Wiki

In order to use GPU-accelerated DXT compression, you need to have your graphic card's drivers installed and your X started.

Install these packages:

 apt-get install mesa-common-dev libx11 libglew1.5-dev # Ubuntu, Debian

 zypper install glew-devel Mesa-devel # openSUSE

 yum install mesa-libGL-devel glew-devel libX11-devel # Fedora, CentOS

A card and software supporting OpenGL 3 or higher is required.

Once the required packages are installed, this feature compiles automatically with UltraGrid.