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» Volumetric Ray Tracing
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RT
2001
Springer
13 years 12 months ago
Realistic Reflections and Refractions on Graphics Hardware with Hybrid Rendering and Layered Environment Maps
We introduce hybrid rendering, a scheme that dynamically ray traces the local geometry of reflective and refractive objects, but approximates more distant geometry by hardwaresupp...
Ziyad S. Hakura, John M. Snyder
SI3D
2010
ACM
14 years 25 days ago
Epipolar sampling for shadows and crepuscular rays in participating media with single scattering
Scattering in participating media, such as fog or haze, generates volumetric lighting effects known as crepuscular or god rays. Rendering such effects greatly enhances the realism...
Thomas Engelhardt, Carsten Dachsbacher
CGF
2010
135views more  CGF 2010»
13 years 4 months ago
Interactive Rendering of Non-Constant, Refractive Media Using the Ray Equations of Gradient-Index Optics
Existing algorithms can efficiently render refractive objects of constant refractive index. For a medium with a continuously varying index of refraction, most algorithms use the r...
Chen Cao, Zhong Ren, Baining Guo, Kun Zhou
VISUALIZATION
2000
IEEE
13 years 12 months ago
3D digital cleansing using segmentation rays
We propose a novel approach for segmentation and digital cleansing of endoscopic organs. Our method can be used for a variety of segmentation needs with little or no modification...
Sarang Lakare, Ming Wan, Mie Sato, Arie E. Kaufman
VMV
2008
157views Visualization» more  VMV 2008»
13 years 9 months ago
Flexible GPU-Based Multi-Volume Ray-Casting
Using combinations of different volumetric datasets is becoming more common in scientific applications, especially medical environments such as neurosurgery where multiple imaging...
Ralph Brecheisen, Anna Vilanova Bartrolí, B...