Problem with displacement

[lcetina]

Hi,

Sorry for bothering with the basics, but I'm having this repetitive problem with displacement and for a long time can't find a solution, so please somebody help me.

For starters, I can't understand how to close holes on the edges. Is there a way to blend sides, or at least have holes filled?

I also noticed that at certain angles black squares appear. This is best portraited in the attached video. What am I doing wrong?

displacement_problem.mp4

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This simple scene is attached to showcase the problem, but it keeps giving me trouble in any scene :/

Please, can someone take a look at it and advice me how to properly use displacements?

Regards,
Lorenzo

[bepeg4d]

Hi,
please have a look at the documentation about Vertex Displacement here:
http://www.aoktar.com/octane/VertexDisplacement.html

Please also have a look at this discussion here:
viewtopic.php?f=30&t=74890&start=10#p383708
and here:
viewtopic.php?f=9&t=74889#p383632

ciao Beppe