Macrostructure modeling with microstructure reflectance slices

Details Macrostructure modeling with microstructure reflectance slices Macrostructure modeling with microstructure reflectance slices

2007-01-23

2007-01-23

Nguyen, Kimbinh T. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S419000, C345S424000, C345S427000, C345S582000, C345S583000, C345S592000, C345S649000

Reexamination Certificate

active

11064927

ABSTRACT:
A method and system for efficient synthesis of photorealistic free-form knitwear, where a single cross-section of yarn serves as the basic primitive for modeling entire articles of knitwear. This primitive, called the lumislice, describes radiance from a yarn cross-section based on fine-level interactions, including occlusion, shadowing, and multiple scattering, among yarn fibers. By representing yarn as a sequence of identical but rotated cross-sections, the lumislice can effectively propagate local microstructure over arbitrary stitch patterns and knitwear shapes. This framework accommodates varying levels of detail and capitalizes on hardware-assisted transparency blending. To further enhance realism, a technique for generating soft shadows from yarn is also introduced.

REFERENCES:
patent: 5471565 (1995-11-01), Tsujido et al.
patent: 6018423 (2000-01-01), Takahashi
patent: 6246416 (2001-06-01), Stam
Groller et al.; “Modeling and Visualization of Knitwear”, IEEE 1995, pp. 302-310.
Neyret; “Modeling, Animating, and Rendering Complex Scenes using Volumetric textures”; IEEE 1998, pp. 55-70.
Westin et al. “Predicting Reflectance Functions from Complex Surfaces”; ACM 1992.
Hanrahan; “Reflection from Layered Surfaces due to Subsurface Scattering”; ACM 1993, pp. 165-174.

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