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];
*
* }*/
}
public ClusterFit(ColourSet colours, DXTCompression compression) : base(colours, compression)
{
Order = new byte[16 * MaxIterations];
PointWeights = new Vec4[16];
}
public ColourFit(ColourSet colours, DXTCompression compression)
{
Colours = colours;
Compression = compression;
}