Sub-triangle opacity masks for faster ray tracing of transparent objects

dc.contributor.author	Gruen, Holger	en_US
dc.contributor.author	Benthin, Carsten	en_US
dc.contributor.author	Woop, Sven	en_US
dc.contributor.editor	Yuksel, Cem and Membarth, Richard and Zordan, Victor	en_US
dc.date.accessioned	2020-10-30T18:18:28Z
dc.date.available	2020-10-30T18:18:28Z
dc.date.issued	2020
dc.identifier.issn	2577-6193
dc.identifier.uri	https://doi.org/10.1145/3406180
dc.identifier.uri	https://diglib.eg.org:443/handle/10.1145/3406180
dc.description.abstract	We propose an easy and simple-to-integrate approach to accelerate ray tracing of alpha-tested transparent geometry with a focus on Microsoft® DirectX® or Vulkan® ray tracing extensions. Pre-computed bit masks are used to quickly determine fully transparent and fully opaque regions of triangles thereby skipping the more expensive alpha-test operation. These bit masks allow us to skip up to 86% of all transparency tests, yielding up to 40% speed up in a proof-of-concept DirectX® software only implementation.	en_US
dc.publisher	ACM	en_US
dc.subject	Computing methodologies
dc.subject	Ray tracing.
dc.subject	ray tracing
dc.subject	bounding volume hierarchy
dc.subject	transparency
dc.title	Sub-triangle opacity masks for faster ray tracing of transparent objects	en_US
dc.description.seriesinformation	Proceedings of the ACM on Computer Graphics and Interactive Techniques
dc.description.sectionheaders	Rendering Thin or Transparent Objects
dc.description.volume	3
dc.description.number	2
dc.identifier.doi	10.1145/3406180

High-Performance Graphics 2020
published as special issue in Proceedings of the ACM on Computer Graphics and Interactive Techniques, Vol. 3, No. 2