you could check the following: A0 $ds
A}G>JL
- if the surface/element tilt is too large _NN5e|t
Tno 0Q
+
- enough analysis rays used? 36\_Y?zx%
/PZxF
- have you used Coherent Data option under Detector setting. i^}ib
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5q
_n69b
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.