Maxsurf problem - deck affects displacement

[PaulCoffin]

On Maxsurf Pro (version ?) and Maxsurf/T V9.52 I am getting a different displacement when a horizontal above waterline deck (flat surface) is visible or hidden. I think the displacement with the deck hidden is correct. Any ideas?

Thanks,

Paul

[DaveB]

It might have something to do with surface normals... can you flip surface normal directions? I think that they're all supposed to be pointing outward...

Just an idea...

Cheers,

Dave

[PaulCoffin]

...never mind.

Just found the "surface use" buttons.

Paul