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Polygons disappear after export to DAE

RicherSims

RicherSims

Resource contributor
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574
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dominica
New random problem with SU. Exporting worked perfectly before, but suddenly went wack.
After exporting a project for my runway ground polygons some polygons completely disappear, as if they are left out by the exporter.

The strange bit is these polygons are part of a group on a layer called "Runway Markings". However some polys within the group show up, while others do not.
Polys within a "Dirt" layer also fail to show up.

Attached is a picture of the original project (with polys highlighted) and the exported DAE viewed in ModelConverterX (with a rough outline of where the polys should be). As you can see in the wireframe picture, its not a case of missing or transparent textures. The polygons are completely absent.

Any ideas or fixes?


NOTE: Importing the .skp file into Max 2012, and then exporting again as DAE produces all polygons, however the project is oriented wrongly and the texture mapping gets messed up a bit.
This confirms it is a sketchup export issue.
 

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Are any of the polys set to hide in SKP?

If you reopen/import the collada file back into in SKP, are the polys there?
 
Yes they are all visible. As shown in the picture. Remember they are part of a group. The entire group is visible.
And they show up fine when reopened. I even open the .skp file in Max 2012 and they show up. Its when they get exported that they disappear.
 
I believe I have solved it.

For some reason the groups (which worked perfectly before) were preventing some polys from exporting.

So I exploded everything that didnt need to be grouped and made sure they were properly separated to prevent merges in geometry.
The polygons now show up fine. (weird):confused:
 
I explode ALLLLLL models and parts before exporting to DAE in SU.

I have noticed problems with components and groups when they go to select depths within a model.

I have not done any testing to see where this limit is, if one does truly exist, as said I haven't done testing or bench-marking for the test.
 
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