public static ColorRGBAf rgba_pre(ColorRGBAf c)
{
return(new ColorRGBAf(c).premultiply());
}
public static ColorRGBAf rgba_pre(ColorRGBAf c, float a)
{
return(new ColorRGBAf(c, a).premultiply());
}
public ColorRGBAf(ColorRGBAf c)
: this(c, c.alpha)
{
}