Search found 10 matches

by bronxbomber92
Fri Nov 23, 2007 1:09 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Sweep and Prune order of operations confusion
Replies: 0
Views: 1821

Sweep and Prune order of operations confusion

Hello, I do not understand the order of operations of a SAP. This is how I understand it: 1.) Add an object(s) to the SAP. This computes the AABB of the rigidbody, add the min and max endpoints to each dynamic array (one for each axis), and adds the box/AABB to the array of boxes. This step does no ...
by bronxbomber92
Thu Nov 22, 2007 5:27 pm
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Broad Phase Collision Detection
Replies: 3
Views: 4334

Re: Broad Phase Collision Detection

After reading the SAP document, I've got a rather trivial question. Would storing the AABB boxes in a STL vector be appropriate? Is there any pitfalls I should look out for if I were to use a STL vector?

Edit - Nevermind
by bronxbomber92
Sat Nov 03, 2007 4:54 pm
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Broad Phase Collision Detection
Replies: 3
Views: 4334

Re: Broad Phase Collision Detection

Thank, this helps very much! I will give this a read. I've done a little more research, and I've found a paper on the method I-Collide uses, a paper on SWIFT's method, Erleben's paper on BVH "An Introduction to Approximatting heterogeneous Bounding Volume Hierarchies", and the papers of St...
by bronxbomber92
Sat Nov 03, 2007 2:29 pm
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Broad Phase Collision Detection
Replies: 3
Views: 4334

Broad Phase Collision Detection

Hello, I'm considering different methods for doing broad phase collision detection. At the moment, the approach proposed in "Optimized Spatial Hashing for Collision Detection of Deformable Objects" seems to be the most appealing. This is what's used in the Chipmunk engine. Other possibilit...
by bronxbomber92
Wed Oct 24, 2007 10:13 pm
Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
Topic: A New Continuous Collision Detection Library (CATCH) Release
Replies: 4
Views: 6488

Re: A New Continuous Collision Detection Library (CATCH) Release

Hi,

as I side note your server is really slow. I can't download the paper.
by bronxbomber92
Thu Oct 04, 2007 8:21 pm
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Rigid Body Techniques
Replies: 7
Views: 8432

Re: Rigid Body Techniques

How do the methods of Jan Bender compare to Erin Catto's SI method? Are there any obvious advantages or disadvantages between the two?
by bronxbomber92
Thu Oct 04, 2007 1:25 am
Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
Topic: Impulse-based dynamic simulation library (IBDS)
Replies: 94
Views: 75299

Re: Impulse-based dynamic simulation library (IBDS)

Hi, after much work the first version of my impulse-based dynamic simulation library called IBDS is online: http://www.impulse-based.de The impulse-based dynamic simulation is a new method for the simulation of articulated rigid body systems that I have developed during my PhD. It can handle all ki...
by bronxbomber92
Wed Oct 03, 2007 2:16 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Rigid Body Techniques
Replies: 7
Views: 8432

Re: Rigid Body Techniques

Thanks for the input, it's really appreciated! So, Impulse based dynamics it is. Besides Erin Catto's slides (which I can't view properly because I'm on a Mac, and NeoOffice doesn't display the power point slides correctly) are there any papers on SI? If not, I guess I'll just follow Iterative Dynam...
by bronxbomber92
Tue Oct 02, 2007 11:26 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Rigid Body Techniques
Replies: 7
Views: 8432

Re: Rigid Body Techniques

Thanks! So I guess the paper to read is the one Erin Catto wrote in 2005: Iterative Dynamics with Temporal Coherence.

Just out of curiosity, what's wrong with the Verlet technique presented by Rick Baltman and Ron Radeztsky Jr.?
by bronxbomber92
Tue Oct 02, 2007 2:12 am
Forum: Research and development discussion about Collision Detection and Physics Simulation
Topic: Rigid Body Techniques
Replies: 7
Views: 8432

Rigid Body Techniques

Hi, I'm looking to implement my first rigid body engine, and I'm undecided which technique to use. The one's I'm considering are the approaches presented in: Advance Character Physics, by Thomas Jakobsen Verlet Integration and Constraints in a Six Degree of Freedom Rigid Body Physics Simulation, by ...