Method y

SampleFramework12/v1.00/Graphics/Spectrum.h:374–379

        xyz[2] *= scale;
    }
    float y() const {
        float yy = 0.f;
        for (int i = 0; i < NumSpectralSamples; ++i) yy += Y.c[i] * c[i];
        return yy * float(SampledLambdaEnd - SampledLambdaStart) /
               float(CIE_Y_integral * NumSpectralSamples);
    }
    void ToRGB(float rgb[3]) const {
        float xyz[3];
        ToXYZ(xyz);