[ODE] ODE freezes, can you help?

[Ivan Bolcina]

Hi.
I have multi monitor support for my notebook. The only problem is that
device gets lost when I focus visual studio. This is also problem for other
directx apps, including samples which come with sdk. How to solve it?

But, I dont understand what could I have written that freezes ode. Where is
the problem? Have I initialized something wrong? What, what? Sometimes it
works, sometimes it doesnt! I am almost sure there arent any memory leaks,
since I checked application with fluidstudio memory checker.
But, I game I am doing this:

I initialize : world,space, joint group
I add bodies and geoms, masses to them, I put them in position
for each frame:
    I apply forces and torques to them and they move around
    When collision occures, everything gets f... up.(sometimes) why oh why



----- Original Message -----
From: "John Savage" <JSavage@data-mate.com>
To: <ode@q12.org>
Sent: Wednesday, December 18, 2002 9:25 PM
Subject: RE: [ODE] ODE freezes, can you help?


> I've one phrase for debugging full screen apps. MultiMonitor.
>
> If you have 98, 2K or Xp Pro then all you need is a crappy PCI graphics
card
> for 40 bucks and a 15inch monitor for about 100. Plug it all in and run.
> When you go to debug your program, put the MSVC++ IDE onto the 15" and
> debug. You can step trhough your code line by line and everything on the
> second monitor while the program is running full screen on your primary
> monitor. Plus its a cheaper setup than the next best thing, which is
remote
> debugging (requires a second PC!). I've been running multi monitor now for
> about 4 years and I will never go back to a single monitor desktop!
>
> John
>
>
>
>   _____
>
> John Savage <mailto:jsavage@data-mate.com>
> Software Engineer DataMate Global Communications
> Tel: +1 818 487 3900 ext105
>   _____
>
>
>
> -----Original Message-----
> From: ode-admin@q12.org [mailto:ode-admin@q12.org]On Behalf Of Ivan
> Bolcina
> Sent: Wednesday, December 18, 2002 9:48 AM
> To: ode@q12.org
> Subject: Re: [ODE] ODE freezes, can you help?
>
>
> Hi Martin.
>
> I think I found the bug. I looked test_chain1.cpp in examples and found
this
> dWorldSetGravity (world,0,0,-0.5);
>
> I didnt have this line in my code. Everything else was completly
identical.
> So, after adding this line in my code, it miracely worked. It also tried
to
> set
>
> dWorldSetGravity (world,0,0,0);
>
>
>
> but then, it froze again. Could it be ode bug? I think it spent all this 5
> or even more seconds in steeping the world. Some math stuff, I think.
>
> so I finally did
>
> dWorldSetGravity (world,0.0001f,0.0001f,0.0001f);
>
> Now it woks fine.
>
> One more question. I am having big trouble debuging. You, on the other
hand,
> seem to master this stuff. Can you please describe, which tools you use
and
> how.I am working with MS VS7, developing full screen directx
game.Currently
> I fprintf all debug messages to file and examine it lately.
>
> thanks for help,
>
> ivan
>
>
> ----- Original Message -----
> From: "Martin C. Martin" <martin@metahuman.org>
> To: "Ivan Bolcina" <ivan.bolcina@volja.net>
> Cc: <ode@q12.org>
> Sent: Wednesday, December 18, 2002 7:39 PM
> Subject: Re: [ODE] ODE freezes, can you help?
>
>
> > > Actually, it doesn't freeze. It takes a 5 seconds to calculate next
> frame, and then > object colliding are thrown somewhere out of sigth. In
> next frame, this
> > > repeats. How to debug it?
> >
> > Profile it.  Where is the time being spent?  In graphics?  In the near
> > callback?  Stepping the world?  Is the hard drive going during those 5
> > seconds?  That might mean you're running out of memory, or loading
> > textures from disk, or something like that.  How much of the 5 seconds
is
> > spent in your process?  Maybe some other task is grabbing the CPU for a
> > long time, again involving swapping.
> >
> > At 5 seconds, you could probably use clock() for timing.
> >
> > Good luck,
> > Martin
> > _______________________________________________
> > ODE mailing list
> > ODE@q12.org
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>
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