Hi ! I wonder if there is somewhere an external that wraps the Open Dynamic Engine ? http://www.ode.org/ is a library for physical simulation.
Cheers,
Alexandre Quessy http://alexandre.quessy.net http://www.puredata.info/Members/aalex
Hallo, Alexandre Quessy hat gesagt: // Alexandre Quessy wrote:
I wonder if there is somewhere an external that wraps the Open Dynamic Engine ? http://www.ode.org/ is a library for physical simulation.
Yes, I have a working prototype. I can send it to you, if you want, but there are no docs yet at all.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
isn't the PMPD extension just this? Or is it a new implementation of dynamics?
tm
On 17/04/2007, at 9:04 AM, Frank Barknecht wrote:
Hallo, Alexandre Quessy hat gesagt: // Alexandre Quessy wrote:
I wonder if there is somewhere an external that wraps the Open
Dynamic Engine ? http://www.ode.org/ is a library for physical simulation.Yes, I have a working prototype. I can send it to you, if you want, but there are no docs yet at all.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
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Tim Boykett a écrit :
isn't the PMPD extension just this?
no. pmpd's masses have no volume. so they can not rotate. ode is lot's more complex.
cyrille
Or is it a new implementation of
dynamics?
tm
On 17/04/2007, at 9:04 AM, Frank Barknecht wrote:
Hallo, Alexandre Quessy hat gesagt: // Alexandre Quessy wrote:
I wonder if there is somewhere an external that wraps the Open
Dynamic Engine ? http://www.ode.org/ is a library for physical simulation.Yes, I have a working prototype. I can send it to you, if you want, but there are no docs yet at all.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
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ODE is much more powerful, with collision detection etc.
On the other hand, it has no realtime guarantee, that's why i'm
always running pyODE in py/pyext detached mode.
greetings, Thomas
Am 17.04.2007 um 11:48 schrieb Tim Boykett:
isn't the PMPD extension just this? Or is it a new implementation of dynamics?
tm
On 17/04/2007, at 9:04 AM, Frank Barknecht wrote:
Hallo, Alexandre Quessy hat gesagt: // Alexandre Quessy wrote:
I wonder if there is somewhere an external that wraps the Open Dynamic Engine ? http://www.ode.org/ is a library for physical simulation.
Yes, I have a working prototype. I can send it to you, if you want, but there are no docs yet at all.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
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Thomas Grill http://grrrr.org
Hi, i'm using pyODE within py/pyext, which works pretty well. greetings, Thomas
Am 17.04.2007 um 02:44 schrieb Alexandre Quessy:
Hi ! I wonder if there is somewhere an external that wraps the Open Dynamic Engine ? http://www.ode.org/ is a library for physical simulation.
Cheers,
Alexandre Quessy http://alexandre.quessy.net http://www.puredata.info/Members/aalex
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Thomas Grill http://grrrr.org
Hi,
Try my DIMPLE software. Still very alpha, but it works. Sorry, binary is only for Windows, so you'll have to compile it otherwise.
http://www.music.mcgill.ca/~sinclair/content/dimple
Anyways it basically allows you to talk to ODE using OSC.
Steve
On 4/17/07, Frank Barknecht fbar@footils.org wrote:
Hallo, Thomas Grill hat gesagt: // Thomas Grill wrote:
i'm using pyODE within py/pyext, which works pretty well.
Actually that's what I do as well.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
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Hi, Stephen, DIMPLE looks very promising. I am looking forward to try it soon. (plus, I will see it at NIME) I think the C++ way using OSC or an other protocol is a very good way to go. Wouldn't have you prefered FUDI or an other protocol that allows more than one float at a time to be sent ? For instance, if you want to send the position of the cube "foo" :
/shapes/cubes/foo/x 0.234 /shapes/cubes/foo/y 1.000 ...
That would be more straightforward (and fast) to simply send the whole transformation matrix :
shapes cubes foo 0.234 1.000 ...
You know what I mean...
Anyone. And for pyext, do you guys experiment a big lag, or is it satifying ? And what if you had a world populated with hundreds of geos ?
Thanks !
a
2007/4/17, Stephen Sinclair radarsat1@gmail.com:
Hi,
Try my DIMPLE software. Still very alpha, but it works. Sorry, binary is only for Windows, so you'll have to compile it otherwise.
http://www.music.mcgill.ca/~sinclair/content/dimple
Anyways it basically allows you to talk to ODE using OSC.
Steve
On 4/17/07, Frank Barknecht fbar@footils.org wrote:
Hallo, Thomas Grill hat gesagt: // Thomas Grill wrote:
i'm using pyODE within py/pyext, which works pretty well.
Actually that's what I do as well.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
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Hallo, Alexandre Quessy hat gesagt: // Alexandre Quessy wrote:
Stephen, DIMPLE looks very promising. I am looking forward to try it soon. (plus, I will see it at NIME) I think the C++ way using OSC or an other protocol is a very good way to go. Wouldn't have you prefered FUDI or an other protocol that allows more than one float at a time to be sent ? For instance, if you want to send the position of the cube "foo" :
/shapes/cubes/foo/x 0.234 /shapes/cubes/foo/y 1.000 ...
You can do more than that with OSC, too:
/shapes/cubes/foo/pos 0.234 1.000 0.0
Anyone. And for pyext, do you guys experiment a big lag, or is it satifying ?
It's satisfying.
And what if you had a world populated with hundreds of geos ?
Not hundreds, but about one or two hundred Bodies on my slightly older machine (AMD 64 Processor 3000+) when doing a full Gem visualisation as well. If you want hundreds of moving Bodies, you need a really fast machine, when using ODE or any other rigid body simulator.
Expressed very simplified: Where a mass in msd3D only has 3 positional coordinates, 3 velocities and 3 accelerations to calculate with each step, a rigid body additionally has to handle changes in orientation (rotation) consisting of rotation angle and rotation vector rx, ry, rz, and just as position, orientation will change according to forces between bodies and geoms. Then you also need to keep track of the every body's shape to find out when it collides with something. This is rather quick to calculate for a sphere, but gets more expensive for more complex geometries.
In short: Just don't expect to simulate as many rigid bodies as you are able to simulate point masses in msd.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
That would be more straightforward (and fast) to simply send the whole transformation matrix :
shapes cubes foo 0.234 1.000 ...
Yes, as Frank has said, I am using OSC this way. Vectors are sent as three arguments in a message. Actually I recently had a discussion about this... one opinion was that it should support both 3-argument vectors as well as the /x /y /z messages, so that it can be easily mapped to particular variables... Of course, in that case you'll also want to support /magnitude and /phi, etc.... ;-) Many many options here. And that's not even counting how to support units.
Anyways, yes I'll be talking about this at NIME. Should be fun. ;-) Also hopefully I'll also present it or have a poster at the Pd convention.
In fact I didn't want to mention it on the list because there are still quite a few bugs in the software, and I wanted to wait until the convention to discuss it, but since it pertained directly to your question....
Steve
How can I use that library under osx. do I have to compile something? I found that c code in the package, but have no idea how to deal with it??? thnx, marius.
Frank Barknecht wrote:
Hallo, Thomas Grill hat gesagt: // Thomas Grill wrote:
i'm using pyODE within py/pyext, which works pretty well.
Actually that's what I do as well.
Ciao
Hallo, marius schebella hat gesagt: // marius schebella wrote:
How can I use that library under osx. do I have to compile something? I found that c code in the package, but have no idea how to deal with it??? thnx,
You need to install pyODE. If you start python and can do a "import ode" without errors, you will be able to use ODE in py/pyext as well.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__
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Alexandre Quessy -
cyrille henry -
Frank Barknecht -
marius schebella -
Stephen Sinclair -
Thomas Grill -
Tim Boykett