Am 20.03.2017 um 11:38 schrieb muyu:

> Thanks. 1) Regarding my simulations, around 50% of the light is reflected in
> near-infrared. So physically the expected error should be much less than 1%.
> This should be neglible?

> 2) However, I found almost 10%  under-estimates compared with the reference
> using Monte Carlo method. What's the possible reasons for this? Should I
> increase the brightness or the light intensity?

No ideas at the moment. Maybe if you posted the resulting images, the
distribution of light within the canopy might give a hint.

You mentioned reflection above; did you also account for the transmitted
light?

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