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{{see also|Asynchronous Spacewarp}}

{{see also|Asynchronous Spacewarp}}

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'''Timewarp''' / '''Time warping''' also known as '''Reprojection''' is a technique in [[VR]] that warps the rendered image before sending it to the display to correct for the head movement occurred after the rendering.<ref name=ATW blog1">https://www.oculus.com/blog/asynchronous-timewarp/</ref> Timewarp can reduce [[latency]] and increase or maintain [[frame rate]]. Additionally, it can reduce [[judder]] caused missed frames (when frames take too long to render).<ref name="YT1">https://www.youtube.com/watch?v=WvtEXMlQQtI</ref> This process takes the already rendered image, modify it with freshly collected positional information from your [[HMD]]'s sensors, then display it to your screen. Utilizing [[depth maps]] ([[Z Buffers]]) already present in the engine, Timewarp requires very little computation.

'''Timewarp''' / '''Time warping''' also known as '''Reprojection''' is a technique in [[VR]] that warps the rendered image before sending it to the display to correct for the head movement occurred after the rendering.<ref name=ATW blog1">https://www.oculus.com/blog/asynchronous-timewarp/</ref> Timewarp can reduce [[latency]] and increase or maintain [[frame rate]]. Additionally, it can reduce [[judder]] caused missed frames (when frames take too long to render).<ref name="YT1">https://www.youtube.com/watch?v=WvtEXMlQQtI</ref> This process takes the already rendered image, modify it with freshly collected positional information from your [[HMD]]'s sensors, then display it to your screen. Utilizing [[depth maps]] ([[Z Buffers]]) already present in the engine, Timewarp requires very little computation.

Timewarp is a feature of [[Oculus SDK]]. It was initially released in the version 0.3.1 of the SDK. [[#Positional Timewarp|Positional Timewarp]] was introduced in [[Oculus PC SDK]] 0.6.0<ref>https://twitter.com/volgaksoy/status/599251845156995072</ref>.

Timewarp is a feature of [[Oculus SDK]]. It was initially released in the version 0.3.1 of the SDK. [[#Positional Timewarp|Positional Timewarp]] was introduced in [[Oculus PC SDK]] 0.6.0<ref>https://twitter.com/volgaksoy/status/599251845156995072</ref>.

[[Runtime]]s for various platforms such as the [[Oculus Runtime]] and [[SteamVR Runtime]] are responsible for Timewarp. Different runtimes [[#Oculus Rift vs. SteamVR vs. PSVR|perform timewarp differently]].

[[Runtime]]s for various platforms such as the [[Oculus Runtime]] and [[SteamVR Runtime]] are responsible for Timewarp. Different systems perform timewarp differently.

==Asynchronous Timewarp (ATW)==

==Asynchronous Timewarp (ATW)==