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weird elevation shadows on roof

Dave Brach
Advocate

can somebody help me with why I am getting these strange shadows on my roof surface in elevation?  this is looking at the side of a pitched roof.

Screen Shot 2021-10-26 at 11.52.11 AM.png

Dave Brach/architect
AC26 MBP OS Ventura
AMD Radeon Pro 5300M 4 GB
Intel UHD Graphics 630 1536 MB
3 REPLIES 3
Igor
Newcomer

Try to change the settings of the sun, it probably shines from below)

DGSketcher
Legend

@Dave Brach Duplicate surfaces? Unlikely but possible.

 Have you possibly got something modelled on a higher / upper storey that isn't visible in the elevation?

Apple iMac Intel i9 / macOS Sonoma / AC27UKI (most recent builds.. if they work)
amgam
Booster

100% chances of there being at least 2 elements intersecting, check that. May be more problems, but this one is definitely there. 

ArchiCAD 25 FRA 3011 + TwinMotion 2021.1.4
iMac Retina 27 2020 3,8 GHz Intel Core i7 8 cœurs
64 Go 2667 MHz DDR4
AMD Radeon Pro 5700 XT 16 Go