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;
}
> > Sure, hue is the first value of HSV, and I'am only using this one when
> > setting the top and bottom color, but the color isn't right either.
>
> Perhaps you aren't doing something right. Show some code.
>
> Jeffrey "botman" Broome
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