Esempio n. 1
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        public RangeFit(ColourSet colours, DXTCompression compression) : base(colours, compression)
        {
            bool colourMetricPerceptual = false;

            // initialize the metric
            bool perceptual = colourMetricPerceptual;

            if (perceptual)
            {
                Metric = new Vec3(0.2126f, 0.7152f, 0.0722f);
            }
            else
            {
                Metric = new Vec3(0);
            }

            // initialize the best error
            BestError = float.MaxValue;

            // cache some values
            int count = Colours.Count;

            Vec3[]  values  = Colours.Points;
            float[] weights = Colours.Weights;

            // get the covariance matrix

            /*Sym3x3 covariance = ComputeWeightedCovariance(count, values, weights);
             *
             * // compute the principle components
             * Vec3 principle = ComputePrincipleComponent(covariance);
             *
             * // get the min and max range as the codebook endpoints
             * Vec3 start = new Vec3(0.0f);
             * Vec3 end = new Vec3(0.0f);
             * if (count > 0)
             * {
             *  float min, max;
             *
             *  // compute the range
             *  start = end = values[0];
             *
             * }*/
        }
Esempio n. 2
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 public ClusterFit(ColourSet colours, DXTCompression compression) : base(colours, compression)
 {
     Order        = new byte[16 * MaxIterations];
     PointWeights = new Vec4[16];
 }
Esempio n. 3
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 public ColourFit(ColourSet colours, DXTCompression compression)
 {
     Colours     = colours;
     Compression = compression;
 }