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Radiance BSDF model
Array of hexagonal, bent light shafts. The system is measured and modeled without enclosing glass panes. The intended North direction (max. transmission) corresponds to $\phi_i=90$ deg. due to size constraints of the sample. Downloads:
Near Infrared:
Tensor-tree ($2^7 \cdot 2^7$ in, $2^7 \cdot 2^7$ out, 95% data-reduction)
Klems basis ($145$ in, $145$ out)
Visible light:
Tensor-tree ($2^7 \cdot 2^7$ in, $2^7 \cdot 2^7$ out, 95% data-reduction)
Klems basis ($145$ in, $145$ out)