The terrain is generated from a two-dimensional heightmap. It can also use DEM (digital elevation model) files, and other graphic surface maps for rendering.Ī commercial version of the software is also available and is capable of creating larger terrains, renders with higher image resolution, larger terrain files, and better post-render anti-aliasing than the freeware version. Terragen Classic is popular among amateur artists, which can be attributed to it being freeware, its intuitive interface, and its capability to create photorealistic landscapes when used skillfully. It can be combined with other tools (here land-mapping as a Julia set). Version 3.1 was released in February 2014. Planetside released Terragen 3 in August 2013. The 'final' build was released on April 23, 2009, and more updates, including feature modules, are expected to be released later. Since then there have been several released updates to both licenses of the software along the development cycle with a series of technology previews and a beta release. Planetside Software released the first public version of Terragen 2 after more than three years of development of both the core technologies and the program itself.

Terragen 2 is offered in feature limited freeware and full-featured commercial licenses. Released in stages (tech preview and beta) to a participating community, Terragen 2 was released to pre-purchasers on 2 April 2009.

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