We have one more release from Leonid Dulman today: VTKAda version 5.
A short blurb about what VTKAda is:
VTKAda is powerful 2D and 3D render system for use inside Qt4
applications.
Short and sweet. So if you need to render graphics in a Qt application, perhaps build using Leonids QtAda package, then VTKAda is just what you need.
The release announcement is available here.