[Radiance-general] daylighting matrix

[Jia Hu]

Hello experts:

I am learning the tutorial "The Three-Phase Daylight Coefficient Method for
Simulating Complex Fenestration with Radiance". I am very confused with the
daylighting matrix.  Daylighting matrix should be a matrix with size of
 KlemsDivision* SkyPatches. Is that right D-matrix tells me
the contributions of  each sky patch to each Klems division (each angle?)?
If so, different point in the window area should have different D-matrix
because the sky patches' contributions to the same direction in different
positions of window are different, in other words, the D matrix is
different. But in fact, there is only one D matrix for a window. Could
someone explain how daylighting matrix works?

Thank you,

Jia
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