computer science

Terragen

Terragen is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Terragen rather than just read about it. In short: Terragen is a scenery generator program for Microsoft Windows and Mac OS X developed and published by Planetside Software. It can be used to create renderings and animations of landscapes.

Key takeaways

Terragen belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Terragen to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Terragen from memory before moving on to harder problems.

Reference excerpt

Terragen is a scenery generator program for Microsoft Windows and Mac OS X developed and published by Planetside Software. It can be used to create renderings and animations of landscapes.

History

Released in stages (tech preview and beta) to a participating community, Terragen 2 was released to pre-purchasers on 2 April 2009. Terragen 2 is offered in feature limited freeware and full-featured commercial licenses. 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. 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. The "final" build was released on April 23, 2009, and more updates, including feature modules, are expected to be released later. Planetside released Terragen 3 in August 2013. Version 3.1 was released in February 2014. Version 4 was released in 2016.

Terragen Classic 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 also use DEM (digital elevation model) files, and other graphic surface maps for rendering. A 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. The terrain is generated from a two-dimensional heightmap. The program contains facilities for importing and exporting heightmaps to images, for use in other programs.

Use in media Rendering software contributed by PlanetSide proprietor Matt Fairclough was used by Digital Domain for effects in Star Trek Nemesis. Terragen Classic was used in The Golden Compass, the 2006 remake of The Wicker Man, games, and many TV commercials. An image from what is now known as Terragen Classic appeared on the April 16, 2001, cover of Newsweek, and Terragen was used for animations in Brandy Norwood's "What About Us?" music video. The classic version was also used by numerous artists, such as Joan Fontcuberta ("Orogenesis" series), and the French photographer Mathieu Bernard-Reymond ("Vous êtes ici" series and "Pôle" series). Terragen Classic was used to create skyboxes for 3D video games such as Serious Sam. The software was used by Devastudios to create the mountainous scenery in the intro used by Paramount Pictures for its centennial anniversary in 2012, alongside Autodesk Maya, with Mission: Impossible – Ghost Protocol in 2011, which would be carried on for Paramount Players, Paramount Television Studios, Paramount Animation (under supervision of Reel FX and ATK PLN), Paramount+ and their parent company, Paramount Global (now known as Paramount Skydance Corporation), with the latter two being done by Loyalkaspar and Bigstar, based on their work. Devastudios also used the software for the sky and clouds in the 2021 and 2023 Warner Bros. Pictures logos with Locked Down and Wonka, respectively, alongside the Academy Color Encoding System (ACES) and Adobe Substance 3D Painter for the latter, which would later be carried on for Warner Bros. Television, New Line Cinema and Warner Bros. Pictures Animation.

Illustrations

Worked examples

Example 1 — a first encounter with Terragen

Start with the simplest possible case. Write down what Terragen claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Terragen before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Terragen ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Terragen

In research: Terragen appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Terragen in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Terragen is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fractal software, Freeware 3D graphics software, Global illumination software, so understanding it makes those chapters shorter.
In everyday life: Look for Terragen outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Terragen in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Terragen means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Terragen out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Terragen in simple terms?

Terragen is a scenery generator program for Microsoft Windows and Mac OS X developed and published by Planetside Software. It can be used to create renderings and animations of landscapes.

Why does Terragen matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Terragen?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Terragen.