you could check the following: $Q'S8TU
4y|%Oj
- if the surface/element tilt is too large 9:1[4o )~
Y}UVC|Ef
- enough analysis rays used? R}J}Q b
}[c ,/NH
- have you used Coherent Data option under Detector setting. -FrNk>
F* h\ #?
Someone above was right about that the non-sequential mode only uses geometric rays but you could see inteference fringes using Coherent Data.
