> ok, here's my util function:
>
> void UTIL_RGBtoHSV(float r,float g,float b,float &h,float &s,float &v)
> {
> float flmin, flmax, fldelta;
> flmin = min( r, min (g, b ));
> flmax = max( r, max (g, b ));
>
> v = flmax; // v
> fldelta = flmax - flmin;
> if( flmax != 0 )
> s = fldelta / flmax; // s
> else // r = g = b = 0
> {
> s = 0; // s = 0, v is undefined
> v = 0;
> h = -1;
> return;
> }
>
> if( r == flmax )
> h = ( g - b ) / fldelta; // between yellow & magenta
> else if( g == flmax )
> h = 2 + ( b - r ) / fldelta;// between cyan & yellow
> else
> h = 4 + ( r - g ) / fldelta;// between magenta & cyan
> h *= 60; // degrees
> if( h < 0 )
> h += 360;
> }
I assume you got the code from here...
http://www.cs.rit.edu/~ncs/color/t_convert.html
...or somewhere similar.
Are you passing in RGB values from 0 to 1? (i.e....
float r, g, b;
float h, s, v;
r = color.red / 255.0f; // make float 0.0 - 1.0
g = color.green / 255.0f;
b = color.blue / 255.0f;
UTIL_RGBtoHSV(r, g, b, h, s, v);
...)???
Jeffrey "botman" Broome
_______________________________________________
To unsubscribe, edit your list preferences, or view the list archives, please visit:
http://list.valvesoftware.com/mailman/listinfo/hlcoders
