Texture2D GetCurveTexture()

in unity/Assets/PostProcessingV2/Runtime/Effects/ColorGrading.cs [489:539]
43 lines of code
4 McCabe index (conditional complexity)

        Texture2D GetCurveTexture(bool hdr)
        {
            if (m_GradingCurves == null)
            {
                var format = GetCurveFormat();
                m_GradingCurves = new Texture2D(Spline.k_Precision, 2, format, false, true)
                {
                    name = "Internal Curves Texture",
                    hideFlags = HideFlags.DontSave,
                    anisoLevel = 0,
                    wrapMode = TextureWrapMode.Clamp,
                    filterMode = FilterMode.Bilinear
                };
            }

            var hueVsHueCurve = settings.hueVsHueCurve.value;
            var hueVsSatCurve = settings.hueVsSatCurve.value;
            var satVsSatCurve = settings.satVsSatCurve.value;
            var lumVsSatCurve = settings.lumVsSatCurve.value;
            var masterCurve = settings.masterCurve.value;
            var redCurve = settings.redCurve.value;
            var greenCurve = settings.greenCurve.value;
            var blueCurve = settings.blueCurve.value;

            var pixels = m_Pixels;

            for (int i = 0; i < Spline.k_Precision; i++)
            {
                // Secondary/VS curves
                float x = hueVsHueCurve.cachedData[i];
                float y = hueVsSatCurve.cachedData[i];
                float z = satVsSatCurve.cachedData[i];
                float w = lumVsSatCurve.cachedData[i];
                pixels[i] = new Color(x, y, z, w);

                // YRGB
                if (!hdr)
                {
                    float m = masterCurve.cachedData[i];
                    float r = redCurve.cachedData[i];
                    float g = greenCurve.cachedData[i];
                    float b = blueCurve.cachedData[i];
                    pixels[i + Spline.k_Precision] = new Color(r, g, b, m);
                }
            }

            m_GradingCurves.SetPixels(pixels);
            m_GradingCurves.Apply(false, false);

            return m_GradingCurves;
        }