claim: Dark matter is a hypothetical type of matter.
evidence: OpenSceneGraph is an open source 3D graphics application programming interface , used by application developers in fields such as visual simulation , computer games , virtual reality , scientific visualization and modeling .. 3D graphics. 3D graphics. open source. open source. application programming interface. application programming interface. visual simulation. visual simulation. virtual reality. virtual reality. visualization. Scientific visualization. modeling. computer model. The toolkit is written in standard C++ using OpenGL , and runs on a variety of operating systems including Microsoft Windows , macOS , Linux , IRIX , Solaris and FreeBSD .. OpenGL. OpenGL. Microsoft Windows. Microsoft Windows. macOS. macOS. Linux. Linux. IRIX. IRIX. Solaris. Solaris ( operating system ). FreeBSD. FreeBSD. Since version 3.0.0 , OpenSceneGraph also supports application development for mobile platforms , namely iOS and Android .. iOS. iOS. Android. Android ( operating system )