Umbra (3D technology company)

Umbra
Company type	Subsidiary
Industry	Video games
Founded	in Helsinki, Finland
v; t; e; Stars
	List;
Formation	Accretion; Molecular cloud; Bok globule; Young stellar object Protostar; Pre-main-sequence; Herbig Ae/Be; T Tauri; ; Herbig–Haro object; Hayashi track; Henyey track;
Evolution	Main sequence; Red-giant branch; Horizontal branch Red clump; ; Asymptotic giant branch post-AGB; super-AGB; ; Blue loop; Planetary nebula Protoplanetary; ; Wolf-Rayet nebula; PG1159; Dredge-up; OH/IR; Instability strip; Luminous blue variable; Stellar population; Supernova Superluminous; Hypernova; ;
	Early; Late; Main sequence O; B; A; F; G; K; M; ; Subdwarf O; B; ; WR; OB; Subgiant; Giant Blue; Red; Yellow; ; Bright giant; Supergiant Blue; Red; Yellow; ; Hypergiant Yellow; ; Carbon S; CN; CH; ; White dwarf; Chemically peculiar Am; Ap/Bp; CEMP; HgMn; He-weak; Barium; Lambda Boötis; Lead; Technetium; ; Be Shell; ; B[e]; Helium Extreme; ; Blue straggler;
Remnants	Compact star; Parker's star; White dwarf Helium planet; ; Neutron Radio-quiet; Pulsar Binary; X-ray; ; Magnetar; ; Stellar black hole; X-ray binary Burster; ; SGR;
Hypothetical	Blue dwarf; Black dwarf; Exotic Boson; Electroweak; Strange; Preon; Planck; Dark; Dark-energy; Quark; Q; ; Black hole star Black; Hawking; Quasi-star; ; Gravastar; Thorne–Żytkow object; Iron; Blitzar; White hole;
Nucleosynthesis	Deuterium burning; Lithium burning; Proton–proton chain; CNO cycle; Helium flash; Triple-alpha process; Alpha process; C burning; Ne burning; O burning; Si burning; s-process; r-process; p-process; Fusor; Nova Symbiotic; Remnant; Luminous red nova; Recurrent; Micronova; ; Supernova;
Structure	Core; Convection zone Microturbulence; Oscillations; ; Radiation zone; Atmosphere Photosphere; Starspot; Chromosphere; Stellar corona; Alfvén surface; ; Stellar wind Bubble; Bipolar outflow; ; Accretion disk Protoplanetary disk; Proplyd; ; Asteroseismology Helioseismology; ; Circumstellar dust; Cosmic dust; Circumstellar envelope; Eddington luminosity; Kelvin–Helmholtz mechanism;
Properties	Designation; Dynamics; Effective temperature; Luminosity; Kinematics; Magnetic field; Absolute magnitude; Mass; Metallicity; Rotation; Starlight; Variable; Photometric system; Color index; Hertzsprung–Russell diagram; Color–color diagram; Strömgren sphere; Kraft break;
Star systems	Binary Contact; Common envelope; Eclipsing; Symbiotic; ; Multiple; Cluster Open; Globular; Super; ; Planetary system;
Earth-centric; observations	Sun Solar eclipse; Solar radio emission; Solar System; Sunlight; ; Pole star; Circumpolar; Constellation; Asterism; Magnitude Apparent; Extinction; Photographic; ; Radial velocity; Proper motion; Parallax; Photometric-standard;
Lists	Proper names Arabic; Chinese; ; Extremes Most massive; Highest temperature; Lowest temperature; Largest volume; Smallest volume; Brightest; Historical brightest; Most luminous; Nearest bright; ; Most distant; ; With resolved images; With multiple exoplanets; Brown dwarfs; Red dwarfs; White dwarfs; Milky Way novae; Supernovae Candidates; Remnants; ; Planetary nebulae; Timeline of stellar astronomy;
Related	Substellar object Brown dwarf Desert; Sub; ; Planet; ; Galactic year; Galaxy; Guest; Gravity; Intergalactic; Planet-hosting stars; Tidal disruption event;
	Category; Stars portal;
Headquarters	Helsinki
Parent	Amazon
Website	umbra3d.com

Umbra is a graphics software technology company founded 2007 in Helsinki, Finland. Umbra specializes in occlusion culling, visibility solution technology and provides middleware for video games running on Windows, Linux, iOS, PlayStation 4, Xbox One, PlayStation 3, Xbox 360, Wii U, handheld consoles, and other platforms. In 2021, Amazon acquired Umbra.

Umbra provides the occlusion culling system for the Unity game engine since the Unity 3 release.^[1]

Umbra is also available as a plug-in for Unreal Engine 3 and Unreal Engine 4.^[2]

Umbra's technology is used in many major video games such as Batman: Arkham Knight, Call of Duty: Ghosts,^[3] The Witcher 3: Wild Hunt, Destiny, Until Dawn, Killzone: Shadow Fall, Mass Effect 2, Mass Effect 3, Guild Wars 2, RaiderZ, The Secret World, Lord of the Rings Online, Planetside 2, Alan Wake, Age of Conan: Hyborian Adventures, Grandia Online, EVE Online, Free Realms, Dragon Age Origins, Dragon Age II, Deus Ex: Mankind Divided, and DOOM.

Umbra's technology has been licensed for use in video games by Rocksteady, Bungie, Guerrilla Games, CD Projekt, Microsoft Studios, Team Dakota, Neversoft, Infinity Ward, Shanda, Vicarious Visions, Specular Interactive, Remedy, Red Duck Inc., Splash Damage, Softmax and several others.

^ Kristyna Hougaard (26 December 2013). "Occlusion Culling in Unity 4.3: Best Practices". Unity Blog. Retrieved 17 June 2018.
^ Will Freeman (6 June 2013). "Epic unveils Unreal Engine 4 Integrated Partners Program". MCV. Retrieved 17 June 2018.
^ "Call of Duty: Ghosts powers up with Umbra 3 (updated)" (Press release). www.umbra3d.com. 7 November 2013. Retrieved 17 June 2018.

[1] Kristyna Hougaard (26 December 2013). "Occlusion Culling in Unity 4.3: Best Practices". Unity Blog. Retrieved 17 June 2018.

[2] Will Freeman (6 June 2013). "Epic unveils Unreal Engine 4 Integrated Partners Program". MCV. Retrieved 17 June 2018.

[3] "Call of Duty: Ghosts powers up with Umbra 3 (updated)" (Press release). www.umbra3d.com. 7 November 2013. Retrieved 17 June 2018.

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