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Consult the OpenGL display character problem


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#1 sontu   Members   -  Reputation: 102

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Posted 06 May 2013 - 10:10 PM

Using OpenGL programming, medical image processing, on image above labeled "R", "L", "fracture", referred to as the character. Now the problem:

The program can run on all computers, but in some computers can output the character, and some computer can't output the character. I do not know why?

Attached Thumbnails

  • display character.JPG


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#2 Sponji   Members   -  Reputation: 1351

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Posted 07 May 2013 - 03:45 AM

You should show some code about how you're creating and drawing those. I'd guess that the texture size isn't power of two, some old cards don't support those.


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#3 slicer4ever   Crossbones+   -  Reputation: 3979

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Posted 07 May 2013 - 05:43 AM

I assume you mean the text, I'm going to make some assumptions since you didn't give us really any other information than "It doesn't work". but i'll take a stab that the problem is with your textures sizes. make sure the texture you are using for the font is 2^N, many older(and cheap) gpus can't handle textures that have a dimension that isn't 2^n size.

Edited by slicer4ever, 07 May 2013 - 05:44 AM.

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#4 sontu   Members   -  Reputation: 102

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Posted 07 May 2013 - 07:07 AM

Maybe, I have gotten the answer. I try the program in the computer which can output the character, and I updated the graphics driver for this computer graphics by "automatically identify and find drivers" on the intel web site, http://www.intel.com/p/en_US/support/detect/graphics, then I run the program and found that it doesn't output the character.

The detail about the graphics:

Intel® HD graphics and the driver version is 6.14.10.5436

 

Now, Which opengl dll is my need? Hope and wait your help! 



#5 sontu   Members   -  Reputation: 102

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Posted 07 May 2013 - 07:08 AM

Maybe, I have gotten the answer. I try the program in the computer which can output the character, and I updated the graphics driver for this computer graphics by "automatically identify and find drivers" on the intel web site, http://www.intel.com/p/en_US/support/detect/graphics, then I run the program and found that it doesn't output the character.

The detail about the graphics:

Intel® HD graphics and the driver version is 6.14.10.5436

 

Now, Which opengl dll is my need? Hope and wait your help! 

 

You should show some code about how you're creating and drawing those. I'd guess that the texture size isn't power of two, some old cards don't support those.

 

 

I assume you mean the text, I'm going to make some assumptions since you didn't give us really any other information than "It doesn't work". but i'll take a stab that the problem is with your textures sizes. make sure the texture you are using for the font is 2^N, many older(and cheap) gpus can't handle textures that have a dimension that isn't 2^n size.






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