| [VisIt](https://wci.llnl.gov/simulation/computer-codes/visit) | VisIt is an Open Source, interactive, scalable, visualization, animation and analysis tool |
| [VisIt](https://wci.llnl.gov/simulation/computer-codes/visit) | VisIt is an Open Source, interactive, scalable, visualization, animation and analysis tool |
| [VTK](http://www.vtk.org) | The Visualization Toolkit (VTK) is an open-source, freely available software system for 3D computer graphics, image processing and visualization. VTK consists of a C++ class library and several interpreted interface layers including Tcl/Tk, Java, and Python. VTK supports a wide variety of visualization algorithms including: scalar, vector, tensor, texture, and volumetric methods; and advanced modeling techniques such as: implicit modeling, polygon reduction, mesh smoothing, cutting, contouring, and Delaunay triangulation. |
| [VTK](http://www.vtk.org) | The Visualization Toolkit (VTK) is an open-source, freely available software system for 3D computer graphics, image processing and visualization. VTK consists of a C++ class library and several interpreted interface layers including Tcl/Tk, Java, and Python. VTK supports a wide variety of visualization algorithms including: scalar, vector, tensor, texture, and volumetric methods; and advanced modeling techniques such as: implicit modeling, polygon reduction, mesh smoothing, cutting, contouring, and Delaunay triangulation. |
| X11 | |
| X11 | |
| [xorg-fonts](https://www.x.org) | The Xorg font packages provide some scalable fonts and supporting packages for Xorg applications. |
| [Xvfb](http://www.x.org) | Xvfb is an X server that can run on machines with no display hardware and no physical input devices. It emulates a dumb framebuffer using virtual memory. |
| [Xvfb](http://www.x.org) | Xvfb is an X server that can run on machines with no display hardware and no physical input devices. It emulates a dumb framebuffer using virtual memory. |
