Function rgbaKrigingInterpolation

rgbaKrigingInterpolation(
    point: VectorPoint,
    refData: VectorPoint<RGBA>[],
    model?: KrigingModel,
    sigma2?: number,
    alpha?: number,
): RGBA
Helper function for krigingInterpolation on RGB(A) data. Light in RGB data is logarithmically weighted, so we need to expand each component by n^2 to get the correct weight for each component.
Parameters
- point: VectorPoint
  Point to interpolate
- refData: VectorPoint<RGBA>[]
  Reference data points
- model: KrigingModel = 'gaussian'
  Kriging model
- sigma2: number = 0
  Variance
- alpha: number = 100
  Diffuse
Returns RGBA
- The interpolated RGBA data.