Search found 111 matches

by Jan Bender
Fri Nov 10, 2017 6:48 am
Forum: Career Opportunities
Topic: Open PhD positions at RWTH Aachen
Replies: 0
Views: 3276

Open PhD positions at RWTH Aachen

Currently, we have open PhD positions (full position, E13) in the Computer Animation Group ( https://animation.rwth-aachen.de ) at RWTH Aachen University. The research of the Computer Animation Group focuses on the physically-based simulation of rigid bodies, deformable solids and fluids in interact...
by Jan Bender
Mon Dec 12, 2016 2:31 pm
Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
Topic: New open-source fluid dynamics library
Replies: 0
Views: 2560

New open-source fluid dynamics library

Hi, a few weeks ago we published our fluid dynamics code as open-source library: https://github.com/InteractiveComputerGraphics/SPlisHSPlasH Current features: - SPlisHSPlasH implements current state-of-the-art pressure solvers (WCSPH, PCISPH, PBF, IISPH, DFSPH) to simulate incompressibility - the li...
by Jan Bender
Mon Aug 29, 2016 8:13 am
Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
Topic: New physics library - PositionBasedDynamics
Replies: 6
Views: 7818

Re: New physics library - PositionBasedDynamics

I don't think that position-based dynamics is appropriate for engineering analysis. In PBD the material behavior depends on the number of iterations, the discretization and the time step size. Hence, you won't be able to get accurate results for a specific material. PBD was developed for computer ga...
by Jan Bender
Mon Oct 12, 2015 8:40 am
Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
Topic: New physics library - PositionBasedDynamics
Replies: 6
Views: 7818

Re: New physics library - PositionBasedDynamics

Hi, the next features of the PBD library will be: - Generic constraints (which are great to test some new constraint functions, you just have to implement the constraint as callback function) - an OpenMP parallelization of the demos - demos for collision handling - a unified solver for rigid bodies,...
by Jan Bender
Thu Sep 17, 2015 9:44 am
Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
Topic: New physics library - PositionBasedDynamics
Replies: 6
Views: 7818

New physics library - PositionBasedDynamics

Hi, a few month ago we started to publish the position-based dynamics code of our latest research projects. You can find the resulting open-source library here: https://github.com/janbender/PositionBasedDynamics Current features: - Physically-based simulation with position-based constraint handling....
by Jan Bender
Thu Feb 07, 2013 9:14 am
Forum: Career Opportunities
Topic: Open PhD/postdoc position
Replies: 0
Views: 9171

Open PhD/postdoc position

We have an open PhD or postdoc position at the Technische Universität (TU) Darmstadt (E13) in the area of Visual Simulation. Description: In our current research project we develop efficient and stable simulation methods for deformable bodies in interactive surgical simulations. These methods must s...
by Jan Bender
Thu Jun 21, 2012 7:55 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Bender's error correction
Replies: 4
Views: 3363

Re: Bender's error correction

Hi, I don't know what you mean with "the position correction considering the stability". Maybe the following paper can help you: http://i31www.ira.uka.de/~jbender/Papers/STAR.pdf For computing the impulses p you must solve the following linear system: J M^-1 J^T p = dv where J is the Jacobian of the...
by Jan Bender
Tue Jun 19, 2012 8:36 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: VRIPhys 2012 - Call for Papers
Replies: 0
Views: 1975

VRIPhys 2012 - Call for Papers

We are pleased to announce the 9th Workshop on Virtual Reality Interaction and Physical Simulation VRIPHYS 2012. The workshop is hosted by the Graduate School of Computational Engineering and the Interactive Graphics Systems Group at the Technical University of Darmstadt and Fraunhofer IGD. It is or...
by Jan Bender
Tue Jun 19, 2012 8:30 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Bender's error correction
Replies: 4
Views: 3363

Re: Bender's error correction

Hi, I am new here. I am trying to understand the bender's error correction in a bilateral constraints problem. Can anybody give me any help on that? Thanks!
Can you specify your problem with the method?

Jan
by Jan Bender
Fri Sep 03, 2010 11:54 am
Forum: General Bullet Physics Support and Feedback
Topic: Collision detection for cloth
Replies: 0
Views: 731

Collision detection for cloth

Hi,

for my physics library I need a collision detection for a deformable triangle mesh (=> cloth).

Which collision shape is recommended for this?
Does Bullet detect self-collisions?

Cheers,

Jan
by Jan Bender
Thu Jul 22, 2010 6:18 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: OpenCL vs. CUDA
Replies: 6
Views: 5795

Re: OpenCL vs. CUDA

The main issue is that OpenCL is an open Khronos standard supported by multiple vendors, including ATI, Intel and NVidia. CUDA is proprietary to NVidia only, so if NVidia is your main sponsor you might want to choose CUDA :) That's research. It must only run fast on my machine :wink: But maybe I wi...
by Jan Bender
Wed Jul 21, 2010 12:20 pm
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: OpenCL vs. CUDA
Replies: 6
Views: 5795

Re: OpenCL vs. CUDA

Hi, Also, OpenCL is supported in more hardware platforms, either GPU-based or not, taking advantage of the available processing power in the machine. ATI cards (since 5xxx series) offers OpenCL support too. I think the support of different platform types is only interesting in theory. If a program i...
by Jan Bender
Tue Jul 20, 2010 9:17 am
Forum: Career Opportunities
Topic: Two PhD student positions
Replies: 1
Views: 6400

Two PhD student positions

The Graduate School of Computational Engineering at Technische Universität (TU) Darmstadt grants 2 scholarships for PhD students in the area of Visual Simulation. Description: ----------- The dynamic simulation is an important area of research with many applications. This area includes the simulatio...
by Jan Bender
Tue Jul 06, 2010 10:08 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: OpenCL vs. CUDA
Replies: 6
Views: 5795

OpenCL vs. CUDA

Hi,

I want to parallelize my simulation method for the GPU. Now I wonder, if it is better to start with CUDA or if I use OpenCL.

Can anybody tell me where are the advantages of CUDA and OpenCL?

Cheers,

Jan
by Jan Bender
Fri Jun 12, 2009 6:22 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: about Jan Bender's one-shot contact clipping algorithm
Replies: 7
Views: 3730

Re: about Jan Bender's one-shot contact clipping algorithm

Hi, the algorithm is very simple. It works for convex polyhedrons. Usually the collision detection delivers one pair of contact points and a contact normal. The algorithm searches for further contact points in the neighbourhood to detect face-face, edge-edge and edge-face contacts. First of all you ...