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  Performance issue on Float vs UNSIGNED_BYTE for RGBA colors  (Read 3065 times)
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Offline sheet

Junior Newbie





« Posted 2005-11-17 10:19:33 »

Newbie question.
I was evaluating JME and I realized that it’s using FloatBuffer for Vertex Color and texture.

Is it efficient?  Huh
Wouldn’t unsigned_buffer (32 bit RBGA) be more efficient? (for exemple, to upload the data)
I read somewhere that the graphics card usually transform internally 32bit RGBA in a 4 floats, is it the reason why using directly float for RGBA is faster?  is [ upload float RGBA ] is faster than [ upload unsigned byte RGBA + processing to floats on the card] ?
 

Thanks for your response!  Smiley
Offline Mojomonkey

Senior Devvie




ooh ooh eee eeee


« Reply #1 - Posted 2005-11-17 22:03:20 »

This thread is covered in the jME fourms
http://www.jmonkeyengine.com/jmeforum/index.php?topic=2483.0

Locking...

Don't send a man to do a monkey's work.
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