Real-Time Physics Simulation Forum

BluePrintRandom wrote:I just asked the DEV team, users don't seem to know at BlenderArtists.org

I thought Blender was open source...

Interesting, I have similar results, but not quite as refined, using logic bricks and the BGE. http://www.youtube.com/watch?v=s57ipxhXBS4&list=TL1FWDUqhxP1zQAlgq-e2NwtDNbPOLc-y4 Oh yes - I saw this a little while ago. Controlling characters like you've done is potentially useful, but actually q...

Do a search for btInternalEdgeUtility, which should do what you want:

http://www.bulletphysics.org/Bullet/php ... mit=Search

the problem is how and what forces and magnitude to apply to the flight dynamic model in the case of collision. Surely when you write "problem" you mean "fun"?! You can get SSS here: http://www.rowlhouse.co.uk/sss/sss-2.19.3-skybox.zip - that includes all the source code. I chan...

My flight dynamics code just calculates forces and torques that are applied to the rigid body that represents the plane. Bullet handles integrating these forces, and of course applying impulses etc to handle collisions.

I'm not sure how relevant it is, but in my flight sim ( http://rowlhouse.co.uk/PicaSim/ )it's possible to scale the size of the planes (including scaling the mass appropriately), and separately scale the mass. The planes with undercarriages use the bullet raycast vehicle. I found that the only way t...

We're looking for a Behaviour Engineer to join the technology team at NaturalMotion (Oxford, UK) - working on procedurally generating human/animal motion in real time using physics simulation and artificial intelligence. There's more information about the technology and its uses in video games on ou...

A more recent video is here: http://youtu.be/aOONp2dAzn4

And if you want to try it for real (Android or Windows at the moment) : http://rowlhouse.co.uk/PicaSim/download.html

Well, I have a solution - adding a btVector3 to the Anchor to accumulate the impulses (well - I'm more interested in forces as when I read it I don't know what the timestep was): a.m_appliedForce += impulse/dt; and then obviously it needs to get zeroed in a couple of places. If there's a better way,...

I have a soft body rope - one end is attached to the world, the other to a dynamic object (this is for control-line plane simulation, if that means anything to anybody!). I need to find the tension in the rope (or alternatively/equivalently the force that is being applied to the dynamic object) - ca...

I've been using Bullet for a while now in my R/C plane simulator ( http://www.rowlhouse.co.uk/PicaSim )- just for the rigid body simulation. Just recently I've been adding control-line models (which I used to fly many years ago) - a pretty insane activity where you fly planes round in circles at 80 ...

But with opensource projects, to idly criticize something and not just do it is only a fault of oneself, not the programmers. No - I disagree with this! People make projects free and/or opensource for a number of reasons - e.g. they're enthusiastic about what they do as a hobby, or they've learnt l...

sikor wrote:Thank you for your post.
here's a short example if someone is curious http://www.youtube.com/watch?v=14fn9Rd1V3E

That video is private... it would be nice to see it!

I've also been seeing big slowdowns when my object is moving close to the heightfield. Actually - I typically just have one object and one heightfield ( http://www.rowlhouse.co.uk/PicaSim/ ) - the reason it's hurting me is my plane is a compound with about 11 shapes, and I have to simulate at a very...

Yes (with joint motors) and yes. One problem you'll have though, if you're intending this to be for realtime use (i.e. stepping physics at < 60Hz and just a handful of iterations), is that the iterative solver will not converge very quickly, which will mean you won't get anything like the control yo...