Generic Solid Disappears

[Neves+Creative Inc.]

I have an extruded object that I want to convert into a generic solid to bend it. Every time I convert it, once I go to select it, it disappears.  Anyone know why this may be?  I am trying to bend an object to multi-point radius.  

[jblock]

@Neves+Creative Inc.Can you post an example file with the Extrude so we can take a look?

[Neves+Creative Inc.]

Here you go

bend test.vwx @jblock

Edited January 4, 2024 by Neves+Creative Inc.

[Pat Stanford]

It has something to do with the hole in the object.

I used the Reshape tool to delete all the vertices of the hole and the outline poly deformed just fine.

I drew two rectangles and use the Clip Surface menu command to make a hole in one and then extruded that and that extrusion deformed fine also.

 

Good luck.

[line-weight]

Yup there's something whacky going on here:

 

 

I zoomed right in and deleted some errant vertices, and then it seemed to be fine.

[Neves+Creative Inc.]

Thank you!

[Senthil Prabu]

@Neves+Creative Inc. Failed to create a valid body because of self-intersection profile found in the hole.  If you fix that it should work well.

 

 

[line-weight]

@Senthil Prabu these "self-intersections" in source polygons quite often cause things to fail in VW. It's quite easy to introduce them without realising, and it can be quite hard to find them.

 

It would be good if - when this causes a failure - we could get an error message that tells us that this is the problem. Because in many cases, the operation just fails, or we get some kind of generic message, and this does not help troubleshooting.

[Senthil Prabu]

11 minutes ago, line-weight said:

@Senthil Prabu these "self-intersections" in source polygons quite often cause things to fail in VW. It's quite easy to introduce them without realising, and it can be quite hard to find them.

 

It would be good if - when this causes a failure - we could get an error message that tells us that this is the problem. Because in many cases, the operation just fails, or we get some kind of generic message, and this does not help troubleshooting.

 

Generally, it is identifying those self-intersection cases (see below image), but this case it is missed, it is a bug.  We will look into that, if possible, please create a bug. 

 

 

[line-weight]

7 hours ago, Senthil Prabu said:

 

Generally, it is identifying those self-intersection cases (see below image), but this case it is missed, it is a bug.  We will look into that, if possible, please create a bug. 

 

 

 

Thanks for your reply. If it's a bug, then I think you should find someone within VW to register it.

[Cliff Southampton]

Hi,

I am having the same issue with VW 21. I have checked and there are no gaps or intersecting vertices. I try to convert Extrude to Generic Solid, because it tells me that it cannot find volumetric properties for the extrude and will not allow me to combine with other extrudes to form one surface, and it just disappears/self-deletes/gone. Any solutions welcomed.

[VIRTUALENVIRONS]

If you can, post the file.  

[Benson Shaw]

Some things that can help find or cure polygon anomalies:

Close then Compose

   Or

Copy/paste to a  new location, then Modify>Offset to outside (big value). This often exaggerates the problem areas.

   Or

Modify>Scale can sometimes reveal trouble areas.
 

Then go fix the original poly and delete the copies. 
 

-B

Edited April 25 by Benson Shaw
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