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OpenGL and continous animation [message #14384]

Sun, 24 February 2008 19:25

forlano
Messages: 1244
Registered: March 2006
Location: Italy

Senior Contributor

Hello,

I found http://nehe.gamedev.net where there are nice tutorials covering OpenGL. I followed the first tutorials and I used as skeleton the package refence/OpenGL. All the code of the tutorial finish in GLPaint() method and everything works perfectly.

What I would like to have now is the automatic animation of the picture without to drive it with the mouse done via

	
virtual void MouseMove(Point p, dword) {
		point = p;
		Refresh();
	}

It should be very easy but I am facing problem.
For example I added the callback LeftDown and the method Rotate() that change some parameter of the figure but nothing change in the screen when I leftclick

	virtual void LeftDown(Point p, dword) {
		Rotate();
	}

	void Rotate( ) 
	{ for(int i=1;i<=1000000;i++) {
	 	 rtri+=0.2f; //it is used in GlPaint
	   	 Refresh();
	  }
	}

Instead MouseMove() works fine. What am I missing? Embarassed

(tell me if a testcase is needed although refence/OpenGL with an automatic animation would be ok)

Luigi

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Re: OpenGL and continous animation [message #14387 is a reply to message #14384]

Sun, 24 February 2008 21:26

masu
Messages: 378
Registered: February 2006

Senior Member

Hi Luigi,

I attached an example I have made with a timer.

By the way, have you tried to run your app in X11?

Matthias

Attachment: Example.zip
(Size: 1.81KB, Downloaded 490 times)

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Re: OpenGL and continous animation [message #14391 is a reply to message #14387]

Sun, 24 February 2008 23:02

forlano
Messages: 1244
Registered: March 2006
Location: Italy

Senior Contributor

masu wrote on Sun, 24 February 2008 21:26

Hi Luigi,

I attached an example I have made with a timer.

By the way, have you tried to run your app in X11?

Matthias

Hi Matthias,

thanks a lot for the example.
I've not yet tried it under linux. I'll give a try tomorrow.

Luigi

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Re: OpenGL and continous animation [message #14398 is a reply to message #14387]

Mon, 25 February 2008 13:51

forlano
Messages: 1244
Registered: March 2006
Location: Italy

Senior Contributor

masu wrote on Sun, 24 February 2008 21:26

By the way, have you tried to run your app in X11?

Matthias

I tried in Ubuntu but I was not able to compile your code. It does not find GL/gl.h etc... Under linux I've not the latest dev version and maybe I should install the openGL too.
I should update it but I use U++-linux rarely.

Luigi

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Re: OpenGL and continous animation [message #14399 is a reply to message #14398]

Mon, 25 February 2008 14:04

masu
Messages: 378
Registered: February 2006

Senior Member

It would be nice if you can check it with Linux since I have problems with X11 GLCtrl implementation.
I get a window handle error when GLCtrl window is mapped to X11 window.

Thanks,
Matthias

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Re: OpenGL and continous animation [message #14400 is a reply to message #14399]

Mon, 25 February 2008 14:56

forlano
Messages: 1244
Registered: March 2006
Location: Italy

Senior Contributor

masu wrote on Mon, 25 February 2008 14:04

It would be nice if you can check it with Linux since I have problems with X11 GLCtrl implementation.
I get a window handle error when GLCtrl window is mapped to X11 window.

Thanks,
Matthias

I've Ubuntu. Do you know if the openGL library come with U++ or I should install it from a thirth part? At the moment there are many gl...h not found.

Luigi

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Re: OpenGL and continous animation [message #14401 is a reply to message #14384]

Mon, 25 February 2008 15:36

mr_ped
Messages: 826
Registered: November 2005
Location: Czech Republic - Praha

Experienced Contributor

try to look in synaptic (or what package manager you use) for opengl libraries, especially for packages with "*dev" at end.

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Re: OpenGL and continous animation [message #14402 is a reply to message #14401]

Mon, 25 February 2008 15:56

forlano
Messages: 1244
Registered: March 2006
Location: Italy

Senior Contributor

mr_ped wrote on Mon, 25 February 2008 15:36

try to look in synaptic (or what package manager you use) for opengl libraries, especially for packages with "*dev" at end.

OK, I installed Mesa and compiled the reference test case and the Matthias' package. Both compile without problem but do not show anything. The error message in the opened window is:
"GLCtrl: CreateGLXWindow: impossible to find a suitable visual"

I can run other test package if this can help. Please consider that my linux Upp-dev version is before of 2008, perhaps the december version. Please post o pm to me the most updated GL package if you want I try it on linux.

Luigi

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Re: OpenGL and continous animation [message #14403 is a reply to message #14401]

Mon, 25 February 2008 15:57

masu
Messages: 378
Registered: February 2006

Senior Member

Have you compiled it in DEBUG mode?
Regards,
Matthias

[Updated on: Mon, 25 February 2008 15:58]

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Re: OpenGL and continous animation [message #14406 is a reply to message #14403]

Mon, 25 February 2008 16:16

forlano
Messages: 1244
Registered: March 2006
Location: Italy

Senior Contributor

masu wrote on Mon, 25 February 2008 15:57

Have you compiled it in DEBUG mode?
Regards,
Matthias

No, only in release mode. If you think make sense to test even the debug mode I'll try it too.

Luigi

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Re: OpenGL and continous animation [message #14407 is a reply to message #14406]

Mon, 25 February 2008 16:28

masu
Messages: 378
Registered: February 2006

Senior Member

Thanks Luigi, can you please compile in DEBUG mode, I would like to see if you also get the message I got.
But I am not sure whether the X11 error messages were already implemented in your version.

Matthias

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Re: OpenGL and continous animation [message #14410 is a reply to message #14407]

Mon, 25 February 2008 19:16

forlano
Messages: 1244
Registered: March 2006
Location: Italy

Senior Contributor

masu wrote on Mon, 25 February 2008 16:28

I compiled in debug mode and got the same error.

Luigi

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Re: OpenGL and continous animation [message #14415 is a reply to message #14410]

Mon, 25 February 2008 21:52

masu
Messages: 378
Registered: February 2006

Senior Member

Luigi, thank you for your help.
I fixed the problem I encountered with OpenGL example.
See topic:
http://www.ultimatepp.org/forum/index.php?t=msg&th=3204& amp;start=0&

Matthias

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Re: OpenGL and continous animation [message #14416 is a reply to message #14415]

Mon, 25 February 2008 21:58

forlano
Messages: 1244
Registered: March 2006
Location: Italy

Senior Contributor

masu wrote on Mon, 25 February 2008 21:52

Luigi, thank you for your help.
I fixed the problem I encountered with OpenGL example.
See topic:
http://www.ultimatepp.org/forum/index.php?t=msg&th=3204& amp; amp;start=0&

Matthias

Very good!

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