Here is a little movie showing real time simulation of non-linear elastic material properties using the Total Lagrangian Explicit Dynamic FEM. Three different sets of material parameters were used. Our implementation is done in CUDA. Thanks to Brian Bunch Christensen and Jens Rimestad for cooperation on the implementation. The source code is under the LGPL licence and can be found here. Please acknowledge if you use it for your research. Thanks to Movania Muhammad Mobeen for tidying up the project so it…
Welcome to my little cuda ray tracing tutorial, and first a warning: Ray tracing is both fun and contagious, there is a fair chance that you will end up coding different variants of your ray tracer just to see those beautiful images. So if you value your spare time stop reading 🙂 I am not an ray-tracing expert, and i also value my spare time. But i really like to synthisize images on my computer, and i cannot explain why…
In this tutorial I will give an easy and intuitive explanation on how to code a cloth simulator using Newtons second law, Verlet integration, and iterative constraint satisfaction. I do not expect you to know these terms – or physics for that matter. The tutorial is accompanied by easy-to-read source code in object oriented C++. I have opted for a minimal dependency on external libraries (OpenGL and Glut) and kept all source code in a single cpp file. Source Code…
Here is a tech demo of our Cuda smoke visualizer software. The software demonstrates real-time interaction and visualization with a smoke data set. It is possible to adjust several parameters such as density and lighting position. To download press HERE.
As part of the GPGPU course at the University of Aarhus in 2005 we developed a very simple set of base-classes for General Purpose Computation using the Graphics Processing Unit (GPGPU) through OpenGL, Nvidia CG, and either framebuffer objects or PBuffers for render-to-texture functionality. Today you should ideally use Nvidia CUDA or OpenCL for GPGPU – but the code might still be of interest for older hardware or a pure OpenGL/CG based approach to GPGPU: SimpleReactionDiffusion (framebuffer_object).zip The archive file…
This post will try to explain how to implement a GPU based raycasting render, using open GL and Nvidia’s CG. This tutorial assumes some experiance with OpenGl and vertex-fragment shaders. First of all why do we need this algortihm? Because it is a smart way to achieve high quality volume rendering and the raycasting algorithm is well suited for the modern GPU’s. Esspecially the new 8800 series because of the unified shading system. The reason behind this tutorial is to…