libqglviewer-headers 2.6.3+dfsg2-6build1 (arm64 binary) in ubuntu focal

 libqglviewer (also known as libQGLViewer) is a free C++ library based on Qt
 that enables the quick creation of OpenGL 3D viewers. It features a powerful
 camera trackball and simple applications simply require an implementation of
 the draw() function. It is a tool of choice for OpenGL beginners and
 assignments. It provides screenshot saving, mouse manipulated frames, stereo
 display, interpolated keyFrames, object selection, and much more. It is fully
 customizable and easy to extend to create complex applications, with a
 possible Qt GUI.
 .
 This package contains headers.