Re: [osg-users] [Win32] Export texture from a 3D model

2010-06-01 Thread Loic Cayou
Ok, I create a *.ive file and I think it contains textures (because of the size 
of the file).
But, when I convert .ive to .osg (osgconv *.ive *.osg?), and when I see into 
this file, the absolute path is keep :?
How can I avoid this?

Cheers,
Loic

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Re: [osg-users] [Win32] Export texture from a 3D model

2010-06-01 Thread Loic Cayou
Hum,
actually the path into the osg model is absolute and therefore bad. The osg 
model comes from 3ds model, and maybe when it's converted, I must force to 
create relative path rather than absolute.

Otherwise, it seems that is working with osgconv.

I will try it :)

Cheers,
Loic

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Re: [osg-users] [Win32] Export texture from a 3D model

2010-06-01 Thread Loic Cayou
Check my email :) (imerir? ;) )

Thank you!

Cheers,
Loic

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[osg-users] [Win32] Export texture from a 3D model

2010-06-01 Thread Loic Cayou
Hi,

I have some question about texture into OSG.
I would like to save the 3D model by serialization. All it works except the 
texture. Indeed, I don't know how get and export texture and after import in 
order to loading my model. 

And if it's impossible, I just want  the name and the path of the texture and 
then I will save it manually. But I can't find this information into the 
structure of OSG (node, geode, image?).
The last question is: can I give the texture to my model manually?



Thank you in advance, and sorry for my poor english :-* 

Cheers,
Loic

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Re: [osg-users] Question about OSG scene loading

2009-09-02 Thread Loic Cayou
Hi everybody,
I bring some news:
I use a custom class derived from openthread::thread, an I use it to create my 
osg viewer. It works, and because I'm using Qt, I made a QTimer to prevent when 
isRunning is false.

But I realized that my thread take all the focus of my application.
It means that my QTimer start after the thread finish. Thus, when my QTimer 
start, it means that my osg are loaded...

I think it isn't a good solution ("Do-it-yourself" method...) but it works...

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Re: [osg-users] Question about OSG scene loading

2009-09-01 Thread Loic Cayou
If I use reimplementation of thread class, I must use:

Code:

virtual void OpenThreads::Thread::run()



and put my code in, I think.

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Re: [osg-users] Question about OSG scene loading

2009-09-01 Thread Loic Cayou

Alberto Luaces wrote:
> Hi Loic,
> 
> you can try to follow this tutorial:
> 
> http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/LoadingProgress
> 
> Regards,
> 
> Alberto
> 

Hi Alberto,
I think it could be a solution, but the creator use an old version of osg, and 
I have so many problem to use it...  :( (Especially for osgDB class).

[quote=Paul Martz]
You can assign a callback to the Registry to be notified when a read completes. 
Alternatively, you could derive a class from OpenThreads::Thread to do the read 
in a thread, and you'll know it's complete when isRunning() returns false.

Neither of these will really help you with making a progress bar, though, which 
requires "percent complete" as an input. 
[/quote]
Hi Paul Martz,
I think I will try your solution, maybe I will derive a class from OpenThread.

But, i don't understand when you say that I can assign a callBack to the 
Registry  [Question] 

Thanks in advance,
regards.

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[osg-users] Question about OSG scene loading

2009-09-01 Thread Loic Cayou
Hi all,

On my program, I use setSceneData(...) to load an heavy osg model (more than 
10mo).

I would like to know if I could be alerted when OSG have finished loading a 
model. My application is blocked while this time, and I want to make a 
progressBar to indicate loading progress.  

Thank you!

Regards,
Loic.

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Re: [osg-users] [Qt] Zbuffer errors while rotation

2009-08-28 Thread Loic Cayou
Yeah ! I found the solution  :D 

I don't know why, but the coordinate system was created with vector's values 
like 3000 :/ Maybe to fix a problem in ortho mode.

It's wokrs now :) And surfaces doesn't blinking anyway  ;) 

Thanks a lot.

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Re: [osg-users] [Qt] Zbuffer errors while rotation

2009-08-28 Thread Loic Cayou
Hum,
I try to test the near and far values, with getProjectionMatrixAsPerspective 
and no setComputeNearFarMode. I have values like 1.29547e+08(Near) and 
2.36171e+08(far). I think it's really strange, it isn't it?

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Re: [osg-users] [Qt] Zbuffer errors while rotation

2009-08-28 Thread Loic Cayou
I have seen on another forum:

> 
> osg_viewer->getCamera()->setProjectionMatrixAsPerspective(90.0, 1.333, 0.001, 
> 100); 
> 
> the FOV and aspect ratio parameters are working, but no matter the values i 
> write in the last two parameters, the clip planes distance remains the same.
> any idea?
> 
> Try:
> 
> osg_viewer->getCamera()->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
> 


I didn't know that  :o 
And if I try this, my coordinate system disappear whatever the values of near 
and far :/ Do you know why?

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Re: [osg-users] [Qt] Zbuffer errors while rotation

2009-08-28 Thread Loic Cayou
As I said it at the beginning, I didn't make the osg code, that explain maybe I 
have miss something.  :-* 

How can I make sure that the camera position corresponds to my model?

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Re: [osg-users] [Qt] Zbuffer errors while rotation

2009-08-27 Thread Loic Cayou
Hum,
it's seems it works better ! My model disappear with 
setProjectionMatrixAsPerspective, but I also a coordinate system wich it's 
displayed. And with it, the mouse interactive works perfectly (I mean left, 
right and middle clic). I really don't know why my model isn't visible...

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Re: [osg-users] [Qt] Zbuffer errors while rotation

2009-08-27 Thread Loic Cayou
Thanks for reply Jason Daly,
I will try to use setProjectionMatrixAsPerspective with corrects values.

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Re: [osg-users] [Qt] Zbuffer errors while rotation

2009-08-27 Thread Loic Cayou
Anyone have a solution, just a start of thing? :-*

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[osg-users] [Qt] Zbuffer errors while rotation

2009-08-27 Thread Loic Cayou
Hi all,

I'm a real beginner on OSG and I want use it with Qt 4.5 on Win32. 
I have to export an activeX based on OSG (dev. with VS) on a Qt application. 
The main purpose it's to display an osg model, and to interactive with it 
(mouse and keyboard). I already use the adapterWidget class, that I found on 
example/osgViewerQt source browser. If I just use this class, my application 
run properly, but, this example use setSceneData() and only this method. I must 
use setSceneData() and addChild/removeChild methods in my application because I 
need show/hide some part of osg model when the user will want it. 

And if I use this method, I get some graphics bug when I rotate the model with 
mouse. Indeed, some surfaces disappear to the view, and if I rotate my model it 
gives an impression of blinking. Also some parts of my model are shown over 
other parts, while they shouldn't. It's seem to be a zBuffer problem 
(frustum?). I use setProjectionMatrixAsOrtho instead 
setProjectionMatrixAsFrustum. If I use frustum my model disappear... With 
setProjectionMatrixAsOrtho, I can change near & far values, but it doesn't 
change anything...

I will put 3 screen-shots to show in picture my problem:
[Image: http://www.monsterup.com/upload/1251290190840.png ] 
(http://www.monsterup.com)
[Image: http://www.monsterup.com/upload/1251290190788.png ] 
(http://www.monsterup.com)
[Image: http://www.monsterup.com/upload/1251290191958.png ] 
(http://www.monsterup.com)




Thank in advance, and sorry for my English level, I'm French :|

Cheers,
cayou

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