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Ray Tracing NURBS Surfaces using CUDA - TU Delft
https://repository.tudelft.nl/islandora/object/uuid:7e04a67d-fc3c-4d11-a1e0-67043044e637/datastream/OBJ/download
Ray Tracing NURBS Surfaces using CUDA - TU Delft
https://repository.tudelft.nl/islandora/object/uuid%3A7e04a67d-fc3c-4d11-a1e0-67043044e637
This thesis presents CNRTS, a CUDA-based system capable of ray tracing NURBS-surfaces. In this system, the surfaces are subdivided in a preprocessing step to better localize ray-patch intersections and to provide better initial seed-points for the root-finder to converge more quickly.
Figure 2.6 from Ray Tracing NURBS Surfaces using CUDA ...
https://www.semanticscholar.org/paper/Ray-Tracing-NURBS-Surfaces-using-CUDA-Valkering/cce1da07300483fef89e20fb579415664c027a48/figure/11
- "Ray Tracing NURBS Surfaces using CUDA" Figure 2.6: NURBS-surface example: Utah Teapot consisting of 32 bi-cubic patches. The patches are visualized using a red and green color mapping for the parametric u and v direction, respectively.
Figure 6.3 from Ray Tracing NURBS Surfaces using CUDA ...
https://www.semanticscholar.org/paper/Ray-Tracing-NURBS-Surfaces-using-CUDA-Valkering/cce1da07300483fef89e20fb579415664c027a48/figure/34
Figure 6.3: The ray’s direction is derived from the viewing parameters. In here, a denotes the fieldof-view. By setting the image-plane’s distance d from the camera equal to 1, the position in the image plane is easily converted to world-coordinates. - …
Accelerated Ray Tracing in One Weekend in CUDA | …
https://developer.nvidia.com/blog/accelerated-ray-tracing-cuda/
int num_pixels = nx*ny; size_t fb_size = 3*num_pixels*sizeof(float); // allocate FB float *fb; checkCudaErrors(cudaMallocManaged( (void **)&fb, …
Ray Tracing NURBS Surfaces using CUDA - doczz.net
https://doczz.net/doc/7470523/ray-tracing-nurbs-surfaces-using-cuda
Ray Tracing NURBS Surfaces using CUDA Master’s Thesis (Version of 2nd February 2010) Erik Valkering Ray Tracing NURBS Surfaces using CUDA THESIS submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE in COMPUTER SCIENCE by Erik Valkering born in Limmen, the Netherlands Computer Graphics and CAD/CAM group Department of …
raytracing with CUDA - Stack Overflow
https://stackoverflow.com/questions/39473/raytracing-with-cuda
This problem, with the current state of the art in ray-tracing code, reduces your GPU utilization by a factor of 16-32, which may make performance unacceptable for your application, especially if it's real-time (e.g. a game). It still might be …
Practical Ray Tracing of Trimmed NURBS Surfaces
https://www.cs.utah.edu/gdc/publications/papers/raynurbs.pdf
2 Ray Tracing NURBS In ray tracing a surface, we pose the question “At what points does a ray intersect the surface?” We define a ray as having an origin and a unit direction r(t)=o+ d^ t: A non-uniform rational B-spline (NURBS) surface can be formulated as Sw(u;v)= MX−1 i=0 NX−1 j=0 Pw i;j B j;k u (u)B i;k v (v)
Ray Casting of Trimmed NURBS Surfaces on the GPU
https://www.uni-weimar.de/fileadmin/user/fak/medien/professuren/Virtual_Reality/documents/publications/Ray_Casting_of_Trimmed_NURBS_Surfaces_on_the_GPU.pdf
Instead of using ray coherence we make use of the geometrical con-text within the Newton Iteration. In addition to the computationally expensive ray-object intersection, high quality trimming based on NURBS trimming curves needs to be supported. However, if rays can be intersected with NURBS patches on the GPU, they certainly
Interactive Ray Tracing with CUDA - Nvidia
https://www.nvidia.com/content/nvision2008/tech_presentations/Game_Developer_Track/NVISION08-Interactive_Ray_Tracing.pdf
System Diagram – ray tracing Texture/Vertex buffer setup (OpenGL) Ray tracing (CUDA) Image display/ postprocessing (OpenGL) Ray generation Material shading Miss shader Light shader Traversal Programmable Ray tracing system Build
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