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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.
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 …
NURBS raytracing · Issue #77 · cihologramas/pyoptools · …
https://github.com/cihologramas/pyoptools/issues/77
1- The equation of the nurbs z=f (x,y) 2- The intersection point of the nurb and an arbitrary ray 3- The normal of the nurb surface at the intersection point. If you could help us with that, I can implement the nurbs surface in pyoptools fast. About your second question, yes it is possible to track a ray in the propagation.
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, fb_size)); This call renders the image on the GPU and has the CUDA runtime divide the work on …
Tessellating NURBS with CUDA
https://on-demand.gputechconf.com/gtc/2012/presentations/S0403-NURBS-Tessellation-with-CUDA.pdf
1) Compute Tessellation Levels. Use CUDA Kernel to compute edge tessellation levels Simple formula for this demo. —tessLevel = C*(Σ. length(CP[i+1] – CP[i])) / distanceToCamera — i = 0 to (#CPs on edge)-1 —C is user-defined constant. Generates relatively constant triangle size on screen All vertices for all patches tessellated into one large VBO Must also compute unique …
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 …
Interactive Ray Tracing with CUDA - Nvidia
https://www.nvidia.com/content/nvision2008/tech_presentations/Game_Developer_Track/NVISION08-Interactive_Ray_Tracing.pdf
Ray tracing (CUDA) Image display/postpro cessing (OpenGL) Ray generation Material shading Miss shader Light shader Traversal Programmable Ray tracing system Build. System Diagram – Hybrid Multi-pass Rasterization (OpenGL) Ray tracing (CUDA) Composite, shade, display (OpenGL) Ray generation Material shading Miss shader Light
An Implementation of Ray Tracing in CUDA
https://cseweb.ucsd.edu/~baden/classes/Exemplars/260_fa09/ChenDasPan_cse260_fa09.pdf
Abstract In computer graphics, ray tracing is a popular technique for rendering images with computers. In this project we implemented a serial version of ray tracing in C, and three parallelized versions in CUDA. We conducted experiments to demonstrate speedup with CUDA, as well as the importance of balancing workload among threads. 1 Introduction
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)
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