Screen space hair self shadowing by translucent hybrid ambient occlusion

Zhuopeng Zhang*, Shigeo Morishima

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Screen space ambient occlusion is a very efficient means to capture the shadows caused by adjacent objects. However it is incapable of expressing transparency of objects. We introduce an approach which behaves like the combination of ambient occlusion and translucency. This method is an extension of the traditional screen space ambient occlusion algorithm with extra density field input. It can be applied on rendering mesh objects, and moreover it is very suitable for rendering complex hair models. We use the new algorithm to approximate light attenuation though semi-transparent hairs at real-time. Our method is implemented on common GPU, and independent from pre-computation. When it is used in environment lighting, the hair shading is visually similar to however one order of magnitude faster than existing algorithm.

Original languageEnglish
Title of host publicationSmart Graphics - 13th International Symposium, SG 2015, Revised Selected Papers
EditorsMarc Christie, Yaxi Chen, Wenrong Tan
PublisherSpringer Verlag
Number of pages12
ISBN (Print)9783319538372
Publication statusPublished - 2017
Event13th International Symposium on Smart Graphics, SG 2015 - Chengdu, China
Duration: 2015 Aug 262015 Aug 28

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume9317 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other13th International Symposium on Smart Graphics, SG 2015


  • Computer animation
  • Deferred shading
  • Hair shadowing
  • Real-time rendering

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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