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SIBGRAPI
2000
IEEE
13 years 8 months ago
Ray Path Categorization
Edge detection and image segmentation algorithms usually operate on an image to extract geometrical information based on pixel colors. For ray-traced images, the presence of geomet...
Diego Nehab, Marcelo Gattass
CGF
2008
83views more  CGF 2008»
13 years 4 months ago
Shallow Bounding Volume Hierarchies for Fast SIMD Ray Tracing of Incoherent Rays
Photorealistic image synthesis is a computationally demanding task that relies on ray tracing for the evaluation of integrals. Rendering time is dominated by tracing long paths th...
Holger Dammertz, Johannes Hanika, Alexander Keller
RT
2001
Springer
13 years 9 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
PG
2007
IEEE
13 years 11 months ago
Practical Global Illumination for Hair Rendering
Both hair rendering and global illumination are known to be computationally expensive, and for this reason we see very few examples using global illumination techniques in hair re...
Cem Yuksel, Ergun Akleman, John Keyser
AFRIGRAPH
2001
ACM
13 years 8 months ago
Exploiting coherence of shadow rays
We present independent method to reduce the number of shadow ray tests. It can be used with standard acceleration ray tracing algorithms. Our method is conservative and produces t...
Andrzej Lukaszewski