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  real rgb values to doubles  (Read 1558 times)
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Offline wookoouk

Senior Newbie





« Posted 2012-02-24 18:05:35 »

Today I wrote a class that takes an image an spits it out as an array of quads with each quad matching the r,g,b,transparency and location date of each pixel of the original. (I'm rather proud of myself to be honest).
But I am stumped at something that I can't figure out.

I have the original rgb values (0-255) but need to convert them to a double that lwjgl can read. With the color4d its 0-1.

Is anyone aware of what the conversion is?
Offline Eli Delventhal

JGO Kernel


Medals: 42
Projects: 11
Exp: 10 years


Game Engineer


« Reply #1 - Posted 2012-02-24 18:15:57 »

value / 256.0f

See my work:
OTC Software
Offline sproingie

JGO Kernel


Medals: 202



« Reply #2 - Posted 2012-02-24 18:16:24 »

Just divide each one by 255 to get their 0-1 scale.     (r/255.0,g/255.0,b/255.0,a/255.0)


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Offline wookoouk

Senior Newbie





« Reply #3 - Posted 2012-02-24 18:30:54 »

Thanks chaps, I knew I was missing something obvious, been a long day! Thank again guys.
Offline Eli Delventhal

JGO Kernel


Medals: 42
Projects: 11
Exp: 10 years


Game Engineer


« Reply #4 - Posted 2012-02-24 18:46:00 »

Erm yes 255. Smiley

See my work:
OTC Software
Offline wookoouk

Senior Newbie





« Reply #5 - Posted 2012-02-24 18:57:04 »

I assumed thats what you ment, the colors look a little odd. But it works, thanks again
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