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need help with Opengl hardware rendering

Started by xwskx Feb 22, 2006 at 12:34 PM 4 replies 850+ views

Original Post

Feb 22, 2006 at 12:34 PM

hello, I am currently working on a senior design project for a proffessor, and the project requires me to model movements in 3D. So i created an opengl program and it seems to work perfectly. but i recently noticed that i could capture the image using the print screen button. I don't know much about 3d graphics, but does this mean that my program isn't taking advantage of 3d hardware acceleration? My professor says that shouldn't happend if i'm using hardware acceleration, is this true? TIA

Undeadlnsanity

Feb 22, 2006 at 12:43 PM

That's definately NOT true.

atcdevil

Feb 22, 2006 at 12:49 PM

your prof. is without a doubt incorrect. You can verify this by running glewinfo (glew.sourceforge.net)
at the top of the generated text file it should say whether you're using hardware or software opengl.

KulSeran

Feb 22, 2006 at 1:48 PM

Your professor is obviously mistaken, but there is a relevent point in there.
If the program you are using uses hardware accelerated blitting through the use of a hardware overlay, then it is correct that you
will be unable to printscreen the image. Check out windows media player to see this effect in action. You get a nice
maroon-black where there should be a video, if your setting are such that media player uses hardware overlays.

xwskx

Feb 22, 2006 at 2:25 PM

Thanks alot, the professor i'm working for is a biologist (the client). I'm a software engineer so i'm suppose to find the requirements, design program, implement it, etc... I should have know it was something like this when i couldn't find anything with google query "opengl enable hardware rendering", but thanks for the answers now i'll have something for the professor.

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