Nux is a OpenGL-based widget toolkit, with some functional resemblence to Gtk+. It's developed and used by Ubuntus Unity. It's comprised of three libraries: NuxCore for types/math/color/urility functions, NuxGraphics abstracts the rendering and canvas interaction, and Nux itself providing the widgets atop.
4.0.819 Aug 2015 22:25
Fix broken builds using the GCC 4.9, 5, and Clang toolchains.
Fix a timeout size on 64-bit platforms.
Calculate the frustum using the projection matrix so 3D windows do not
break in Compiz.
Close some memory leaks in the Input Method support.
Fix a crash due to deleted areas remaining in the layout queue.
Fix a crash during drag-and-drop operations.