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DTSTAMP:20260114T163632Z
LOCATION:Darling Harbour Theatre\, Level 2 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231212T093000
DTEND;TZID=Australia/Melbourne:20231212T124500
UID:siggraphasia_SIGGRAPH Asia 2023_sess209_papers_126@linklings.com
SUMMARY:Perceptual Requirements for World-Locked Rendering in AR and VR
DESCRIPTION:Phillip Guan, Eric Penner, Joel Hegland, Benjamin Letham, and 
 Douglas Lanman (Meta Reality Labs Research)\n\nStereoscopic, head-tracked 
 display systems can show users realistic, world-locked virtual objects and
  environments. However, discrepancies between the rendering pipeline and p
 hysical viewing conditions can lead to perceived instability in the render
 ed content resulting in reduced realism, immersion, and, potentially, visu
 ally-induced motion sickness. The requirements to achieve perceptually sta
 ble world-locked rendering are unknown due to the challenge of constructin
 g a wide field of view, distortion-free display with highly accurate head-
  and eye-tracking. In this work we introduce new hardware and software bui
 lt upon recently introduced hardware and present a system capable of rende
 ring virtual objects over real-world references without perceivable drift 
 under such constraints. The platform is used to study acceptable errors in
  render camera position for world-locked rendering in augmented and virtua
 l reality scenarios, where we find an order of magnitude difference in per
 ceptual sensitivity between them. We conclude by comparing study results w
 ith an analytic model which examines changes to apparent depth and visual 
 direction in response to camera displacement errors; this analysis identif
 ies visual direction as an important consideration for world-locked render
 ing alongside depth errors from incorrect disparity.\n\nRegistration Categ
 ory: Full Access, Enhanced Access, Trade Exhibitor, Experience Hall Exhibi
 tor\n\n
URL:https://asia.siggraph.org/2023/full-program?id=papers_126&sess=sess209
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