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  4. Light Path Guided Culling for Hybrid Real-Time Path Tracing
 
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2024
Journal Article
Title

Light Path Guided Culling for Hybrid Real-Time Path Tracing

Abstract
Rendering visually convincing images requires realistic lighting. Path tracing has long been used in offline rendering to produce photorealistic images. While recent hardware advancements allow ray tracing methods to be employed in real-time renderers, they come with a significant performance and memory impact. Real-time path tracing remains a challenge. We present light path guided culling (LiPaC), a novel culling algorithm for ray tracing that achieves almost optimal culling results by considering the number of light paths encountered by objects. In addition, we describe a hybrid path tracing pipeline using LiPaC to render large and highly dynamic scenes in real-time on the current generation of consumer hardware.
Author(s)
Kelling, Jan
Ubisoft
Ströter, Daniel
TU Darmstadt, Fachgebiet Graphisch-Interaktive Systeme  
Kuijper, Arjan  orcid-logo
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Journal
Proceedings of the ACM on Computer Graphics and Interactive Techniques  
Conference
Conference "High Performance Graphics" 2024  
DOI
10.1145/3675387
Language
English
Fraunhofer-Institut für Graphische Datenverarbeitung IGD  
Keyword(s)
  • Branche: Cultural und Creative Economy

  • Research Line: Computer graphics (CG)

  • LTA: Scalable architectures for massive data sets

  • LTA: Generation, capture, processing, and output of images and 3D models

  • Path-tracing

  • 3D Game engines

  • Real-time reconstruction

  • Scene compositions

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