Browsing by Author "COLLINS, STEVEN"
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Accelerated Entry Point Search Algorithm for Real Time Ray Tracing
COLLINS, STEVEN; MANZKE, MICHAEL; FOWLER, COLIN (2009)Traversing an acceleration data structure, such as the Bounding Volume Hierarchy or kD-tree, takes a significant amount of the total time to render a frame in real-time ray tracing. We present a two phase algorithm based ... -
EFFIGI: An Efficient Framework for Implementing Global Illumination.
LEESON, WILLIAM; COLLINS, STEVEN; O'SULLIVAN, CAROL ANN (2000)This paper presents a rendering framework called EFFIGI (Efficient Framework For Implementing Global Illumination) that uses interfaces which express both geometric concepts and mathematical ones, using object-oriented and ... -
Isosurface Extraction on the CELL Processor
O'CONOR, KEITH; O'SULLIVAN, CAROL; COLLINS, STEVEN (2006)In this paper we describe a parallel method of extracting isosurfaces from large volumetric datasets, adapted for implementation on the Cell Broadband Engine (CBE). The CBE is a new multicore microprocessor architecture ... -
A model of collision perception for real-time animation
RADACH, RALPH; COLLINS, STEVEN; O'SULLIVAN, CAROL ANN (Springer, Wien, 1999)A model of human visual perception of collisions is presented, based on twodimensional measures of eccentricity and separation. The model is validated by performing psychophysical experiments. We demonstrate the feasibility ... -
Skinning with Dual Quaternions
Kavan, Ladislav; Collins, Steven; O'Sullivan, Carol; COLLINS, STEVEN (2007)Skinning of skeletally deformable models is extensively used for real-time animation of characters, creatures and similar objects. The standard solution, linear blend skinning, has some serious drawbacks that require artist ...