topic Re: Silhouette and contour lines not showing in 3D in Modeling

Silhouette and contour lines not showing in 3D

alexliz — Mon, 27 May 2024 16:55:12 GMT

Hi all,

I've got this very simple Slab Element which, when viewed in 3D using the Technical Drawing options as set here:

refuses to show any contour lines whatsoever. If I select it in 3D I can see it; but if it's not selected then not. Compare the two shots below:

The Building Material I have used for the Slab came from a Revit import. I suspected something may have been wrong with that BM, so I checked one-by-one all its parameters, against the material of other elements, but couldn't identify anything.

Oh, and that wall in the back? It's the same BM, and yet it shows normally.

I've pulled all my hair. Any pointers as to what I may be missing will be so welcome. Thanks!

Re: Silhouette and contour lines not showing in 3D

Mahmoud Qenawi — Mon, 27 May 2024 17:44:28 GMT

Hi @alexliz

**You may need to be closer to the project's origin point,

Re: Silhouette and contour lines not showing in 3D

alexliz — Mon, 27 May 2024 19:49:00 GMT

Hi @Mahmoud Qenawi , thanks for your reply. Nope, the distance from XYZ-zero is just fine, once again, it's in millimetres (just like in the other thread, on the horizontally-created Curtain Wall element, if you recall) 😂

Re: Silhouette and contour lines not showing in 3D

Barry Kelly — Tue, 28 May 2024 01:00:12 GMT

Check to see if you have 2 (or more) slabs in exactly the same position.

They may trim each other away, so the edges disappear and all you sea are the surfaces?

Although I just tried and it didn't happen - but I am sure I have seen this before.

Also check if there may be something in a hidden layer that is trimming the lab away?

Barry.

Re: Silhouette and contour lines not showing in 3D

alexliz — Tue, 28 May 2024 09:28:26 GMT

Hi @Barry Kelly , thanks for pitching in. Nope, no duplicated Slab. If I go into the offending Slab and change its Building Material then it will be drawn correctly. If I then switch it back to the initial BM, it will lose all lines once again.

I suspected something awry with the BM itself; but then again, the Library Object which is the wall at the back (brought over from the Revit file) as well as the Morph which is the pillar lying on its side, they both display correctly when assigned to that BM.

It's only the two thin Slabs which lose all lines in 3D when linked to that particular material. The one that is drawn correctly in the screenshots I posted previously is linked to a different BM, to demonstrate the issue.

Miffed.

Re: Silhouette and contour lines not showing in 3D

Mahmoud Qenawi — Tue, 28 May 2024 11:45:36 GMT

Yes, I remember that case.

But how you bring this Revit element into Archicad?

Via hotlinking Revit file? Or Importing RFA as GDL object?

Re: Silhouette and contour lines not showing in 3D

alexliz — Tue, 28 May 2024 11:48:14 GMT

Hotlink, selecting the .rvt file.

Re: Silhouette and contour lines not showing in 3D

ryejuan — Wed, 29 May 2024 02:18:31 GMT

If there are no duplicate slabs definitely its interacting with something. Maybe you can try to the layers and change the channel of the specific slab see if that will help.

Re: Silhouette and contour lines not showing in 3D

alexliz — Wed, 29 May 2024 10:17:57 GMT

Hi @ryejuan , thanks for the post. No, sorry, it isn't a duplicate slab. It isn't a layer issue (I have checked already, and switched everything to check).

I have placed these elements in a new file, with a single layer. Issue still there. Very odd. I have attached a video - anyone feel free to watch and theorise, no matter what I do, all slabs get affected by this material, 'BAD': when it's applied to them, they lose all lines in 3D view. I give up.

File contains only the Archicad Layer; 3 Building Materials, 2 Surfaces, few default Fills, Solid Line Type only.

Literally stripped down to bare minimum.

Re: Silhouette and contour lines not showing in 3D

Mahmoud Qenawi — Thu, 06 Jun 2024 16:52:36 GMT

Hey @alexliz,

I think it's a texture issue, see this link below,

Archicad 27 Help (graphisoft.com)

compare these 3 shots from your video, they're for the 3 BMs, why the first one has no boundary box for the texture while the others have??

Re: Silhouette and contour lines not showing in 3D

alexliz — Thu, 30 May 2024 08:43:02 GMT

Hmm... @Mahmoud Qenawi , interesting observation! I have no idea!

This material is one of a few in my initial project file, all created in the import process from the Revit model. For the life of me I can't find anywhere within Archicad to enable or disable the 'pen' of the outline for the texture assigned to it.

All of the materials created in the Revit->Archicad import are set up the same way - the bounding box is white for the texture in the Building Materials panel. Every other material (i.e. those set up within Archicad) have a black line as a bounding box.

Looks like a bug to me. Not sure how to report this - @Barry Kelly ?

Re: Silhouette and contour lines not showing in 3D

Barry Kelly — Thu, 30 May 2024 09:08:02 GMT

@alexliz wrote:

Looks like a bug to me. Not sure how to report this - @Barry Kelly ?

Best way is to contact your local Archicad support so you can discuss it with them.

If you have no luck there, let me know and I can try reporting directly to Graphisoft.

In that image, it appears to be a white pen around the surface sample.

But I have no idea where you can control that.

In the surface settings you can control the hatch pattern pen colour, but that is not the element edge.

Barry.

Re: Silhouette and contour lines not showing in 3D

ryejuan — Fri, 31 May 2024 07:24:56 GMT

I noticed the video you attached why don't you just change the building material attached to that problematic slab? Any reasons?

Re: Silhouette and contour lines not showing in 3D

alexliz — Fri, 31 May 2024 20:57:09 GMT

I did.

But in doing so I admitted to myself that I couldn't resolve the 'why' of this issue.

Re: Silhouette and contour lines not showing in 3D

Ricardo Lopez — Sat, 01 Jun 2024 16:34:25 GMT

Hi @alexliz

Just one more test to be done: please check if you have an applied Graphic Overide Combination where there is a rule with the option Hide Model Contours checked.

Re: Silhouette and contour lines not showing in 3D

alexliz — Sat, 01 Jun 2024 21:04:34 GMT

Hi @Ricardo Lopez , thanks for this. As you can see from the video, when I switch to a different Building Material all shows correctly. Not being affected by any GO (which I am not using here to begin with). Good shout, I wish it was this.