Problem in displacement

[Seabass]

Please help me with an error. Is there a problem with displacement.
That's what happens when displacement is on.
What is the problem?

[maru]

Hi, which version of Corona are you using? Where is the displacement applied?

[Seabass]

Corona 1.2.1

[johan belmans]

I guess you used PT + UHD cache.
Try it with PT +PT

[Seabass]

Yeah... I will try. But maybe it's a bug?

[romullus]

It could be. But first make sure that your system units and displacement strength are correct. What Corona build you're using?

[Seabass]

Corona 1.2.1 System Units - mm? level displacement min - 0, max -20mm

[romullus]

Nothing unusual here, i'm moving this topic to bug report.

Displacement has seen some fixes recently. It can be that your issue is already fixed. Can you try to render this scene with daily builds?  https://coronarenderer.freshdesk.com/support/solutions/articles/5000570015

[Nekrobul]

I know this problem. Most probably it is boolean geometry.

For example you have a line extruded and with adit poly on it, then you add pro boolean and cut something out and after that ad another edit poly on top of it and then it ***ks up.

[Seabass]

Yeah... it's a boolean object.

[Nekrobul]

Yeah... it's a boolean object.

Try to remove an edit poly stak from it. Boolean+displacement are friends as long as boolean remain boolean not editable poly\mesh.

[hubrobin]

Hey,
would it be possible to get a simplified version of the scene where the problem still occurs?

Thanks,
Robin

[Seabass]

Ok! I will try do it

[Seabass]

Problem in this scene

[maru]

That displaced mesh is completely ffffed up. Just go to modify tab > editable poly > retriangulate and put subdivide modifier on top of it. It should work fine. But I wouldn't put displacement on it anyway unless you are able to hide the borders somehow.