AreaLightTest.AreaLightForm.RGB2XYZ C# (CSharp) Метод

        float3    RGB2XYZ( float3 _RGB ) {

                        return new float3(           _RGB.Dot( new float3( 0.4124f, 0.3576f, 0.1805f ) ),

                                                                                                        _RGB.Dot( new float3( 0.2126f, 0.7152f, 0.0722f ) ),                                // <= Y component is the LUMINANCE defined above

                                                                                                        _RGB.Dot( new float3( 0.0193f, 0.1192f, 0.9505f ) ) );

        }