While OpenGL and Direct3D were supported, they reported a slower performance compared to Glide due to their deficiency in texture management at the time. However, over time, it was able to take advantage of the capabilities provided by dedicated graphics cards, focusing on the Glide API, specially designed for 3dfx accelerators. Īt first, the engine relied completely on software rendering, meaning the graphics calculations were handled by the CPU. According to an interview, Sweeney wrote 90 percent of the code in the engine, including the graphics, tools, and networking. After years in development, it debuted with the game's release in 1998, although MicroProse and Legend Entertainment had access to the technology much earlier, licensing it in 1996. Having created editing tools for his shareware games ZZT (1991) and Jill of the Jungle (1992), Sweeney began writing the engine in 1995 for the production of a game that would later become a first-person shooter known as Unreal. The first-generation Unreal Engine was developed by Tim Sweeney, the founder of Epic Games. Epic has included features from acquired companies like Quixel in the engine, which is seen as helped by Fortnite's revenue.Ī screenshot of the first version of UnrealEd, displaying a graphical user interface written in Visual Basic Epic waives their royalties margin for games until developers have earned US$1 million in revenue and the fee is waived if developers publish on the Epic Games Store. As its predecessor released in March 2014, its source code is available on GitHub after registering an account, and commercial use is granted based on a royalty model. The latest generation, Unreal Engine 5, was launched in April 2022.

Written in C++, the Unreal Engine features a high degree of portability, supporting a wide range of desktop, mobile, console and virtual reality platforms. Initially developed for PC first-person shooters, it has since been used in a variety of genres of games and has seen adoption by other industries, most notably the film and television industry.

Unreal Engine ( UE) is a 3D computer graphics game engine developed by Epic Games, first showcased in the 1998 first-person shooter game Unreal. Source-available commercial software with royalty model for commercial use

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