Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2006-08-24
2009-12-08
Nguyen, Phu K (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S419000, C345S426000, C345S609000
Reexamination Certificate
active
07629972
ABSTRACT:
The present invention relates, in general, to technology applied to entertainment information devices, such as video game machines or computer game programs, information devices for representing geo-spatial information, or information devices for performing three-dimensional rendering using computer graphics and, more particularly, to a protruded displacement mapping method, which represents an object as protruding from a surface. In the image-based protruded displacement mapping method of the present invention, an intersection point search step of searching for an intersection point of a surface of a protruding object, defined by the displacement information, and an observers sight line, and displaying the shape of the protruding object on the polygonal surface, is performed. An overflow representation step of adding a separate polygonal surface and representing a shape of the protruding object, corresponding to overflow deviating from a boundary of the polygonal surface, on the added polygonal surface, is performed. A steeply inclined surface step of detecting a steeply inclined surface in the shape of the protruding object is performed. A steeply inclined surface correction step of representing an additional texture on the steeply inclined surface is performed.
REFERENCES:
patent: 5224208 (1993-06-01), Miller et al.
patent: 7196702 (2007-03-01), Lee et al.
patent: 7408550 (2008-08-01), Bunnell
patent: 7453455 (2008-11-01), Park et al.
Cook, Shade Trees, ACM SIGGRAPH Computer Graphics, Jul. 1984, pp. 223-231.
Blinn, Simulation of Wrinkled Surfaces, ACM SIGGRAPH Computer Graphics, Aug. 1978, pp. 286-292.
Risser, Rendering 3D Volumes Using per-pixel Displacement Mapping, 2007, pp. 81-87.
Policarpo et al., Real-time Relieft Mapping on Arbitrary Polygonal Surfaces, Symposium on Interactive 3D Graphics, 2005, pp. 155-162.
Wang et al., Genaralized Displacement Maps, Microsoft Research Asia, Eurographics Symposium on Rendering, 2004, pp. 1-8.
Karhu, Displacement Mapping, Tik-111.500 Seminar on computer Graphics, Helsinki University of technology, Apr. 2002, pp. 1-15.
Wang et al., View-Dependent Displacement Mapping, ACM Transaction on Graphics, Jul. 2003, pp. 334-339.
Han Soon Hung
Yoo Byoung Hyun
Graybeal Jackson LLP
Jablonski KEvin D.
Korea Advanced Institute of Science and Technology
Nguyen Phu K
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