Premium
Object‐Space Visibility Ordering for Point‐Based and Volume Rendering
Author(s) -
Hofsetz C.,
Max N.,
Bastos R.
Publication year - 2008
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/j.1467-8659.2007.01099.x
Subject(s) - rendering (computer graphics) , computer science , computer graphics (images) , tiled rendering , texture memory , software rendering , 3d rendering , real time rendering , volume rendering , parallel rendering , image based modeling and rendering , alternate frame rendering , computer vision , artificial intelligence , graphics , 3d computer graphics
This paper presents a method to accelerate algorithms that need a correct and complete visibility ordering of their data for rendering. The technique works by pre‐sorting primitives in object‐space using three lists (one for each axis: X, Y and Z), and then combining the lists using graphics hardware by rendering each list to a texture and merging the textures in the end. We validate our algorithm by applying it to the splatting technique using several types of rendering, including point‐based rendering and volume rendering. We also detail our hardware implementation for volume rendering using point sprites.