BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering & geometric analyses, network distributed framebuffer support, image & signal-processing tools.
This simple and brief tutorial is going to show you how to download and install the latest version of BRL-CAD (So for, it is 7.22.0) in Ubuntu Linux from the official download page.
First, open System Monitor from the Unity Dash Home to check 32-bit or 64-bit:
Then click following link to download the latest BRL-CAD:
Other versions are available here.
To install, double click on the .deb package and install via Ubuntu Software Center. Once installed, search for and open archer from the unity dash home. For examples, and documentation, search BRL-CAD