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How do I take a screenshot?


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#1   Members   -  Reputation: 122

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Posted 04 January 2002 - 02:09 PM

can anyone tell me how do i include a way to take screenshots plz? i did a search here but it seems it wont work for me any help appreciated thx "Those who serve no purpose, have no purpose"

#2   Members   -  Reputation: 1087

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Posted 04 January 2002 - 02:17 PM

Use glReadPixels then dump the data into a file.

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#3   Members   -  Reputation: 122

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Posted 04 January 2002 - 02:19 PM

umm just glReadPixels()?

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Posted 04 January 2002 - 04:14 PM

Yup.

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#5   Members   -  Reputation: 122

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Posted 05 January 2002 - 04:22 AM

can you post some sample code plz, im quite dumb and im not sure how to use that function...

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#6   Members   -  Reputation: 180

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Posted 05 January 2002 - 04:33 AM

Go here - read:

http://ask.ii.uib.no/ebt-bin/nph-dweb/dynaweb/SGI_Developer/OpenGL_PG/

#7   Members   -  Reputation: 122

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Posted 06 January 2002 - 03:03 AM

oh
glReadPixels ist sloooooow;
you can render into memory and then write it to a file instead

#8   Members   -  Reputation: 122

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Posted 06 January 2002 - 04:42 AM

...
my brain does not compute
can someone just post some code so i can understand better, i cant stand reading a book online

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#9 Anonymous Poster_Anonymous Poster_*   Guests   -  Reputation:

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Posted 06 January 2002 - 04:56 AM

hitting the print screen button in windowed mode, then pasting in paint is the easiest

#10   Members   -  Reputation: 122

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Posted 06 January 2002 - 05:02 AM

wtf?

are you kidding me?

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#11 Anonymous Poster_Anonymous Poster_*   Guests   -  Reputation:

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Posted 06 January 2002 - 05:37 AM

> glReadPixels ist sloooooow

And writing a TGA file is not slow ? It''s for a *screenshot*, writing the file will take up 99.9% of the time. Using a pixel buffer instead of glReadPixels will make your screenshot a microsecond faster...





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