built-in occlusion culling preprocessing powered by Umbra. It first appeared in Unity 3. Prior to Unity 5's release Umbra's occlusion culling solution was available only with paid Pro licenses. Edge Magazine's website next-generation.biz reported on 15 December 2011 that Umbra's technology is an integral part of Bungie's new 3D engine and game. ArenaNet's Guild Wars 2 was released on 28 August and the game uses Umbra 3. On 14 August 2012, Umbra announced its partnership with Nintendo which allows the licensing of the Umbra 3 middleware for Wii U developers. At the Game Developers Conference 2014 Umbra announced Umbra for Cloud and Umbra VR. The latter is based on Umbra's Stereo Camera feature which the company explains allows that "both eyes can use the results of a single occlusion culling operation – effectively halving the required processing time." On 3 April 2014, Umbra announced that its latest technology was licensed by Wargaming to be used as part of the graphical upgrade being made to World of Tanks. The deal also allows other Wargaming studios to use Umbra's Visibility Technology. In January 2021, Amazon announced its acquisition of Umbra. Products Umbra has developed two products: Umbra Occlusion Booster and Umbra 3. Umbra Occlusion Booster is GPU accelerated occlusion culling middleware for PC, Xbox 360 and PlayStation 3. This product was released in 2009. Umbra 3.2 was released on 1 February 2013. The "next-generation" update has several important new features such as streaming which enables streaming open worlds, shadow and light culling as well as hierarchical occluder data which also helps open world performance. Umbra 3.3 was released on 11 August 2013. In February 2015, Umbra announced Umbra Cloud and rebranded both the product and the company as simply Umbra. dPVS dPVS is an advanced computer graphics visibility optimization tool. Designed for developing games with large and dynamic [3D] worlds, dPVS computes visibility databases in real time. dPVS also reduces the time required for static PVS computation. Originally started at Hybrid Graphics, under the name SurRender Umbra, it was the topic of Timo Aila's Master's Thesis, with the collaboration of Ville Miettinen (who was one of the developers of their SurRender engine.) Because of its continuing development, and also to help distinguish that it was not dependent on the SurRender engine, it was renamed dPVS. The technology was eventually spun off into its own company, Umbra Software Ltd. References Finnish brands Finnish