Unable to select faces on double sided object

jefran · Post by **jefran** » Mon Feb 05, 2007 8:02 pm

The cab on my Darjeeling class A

Click the image to zoom in
is basically open, with a canopy and a weather board (it will acquire spectacle glasses!), so I made it as a cube, chamfered the front corners a few times, deleted top, bottom and back, and double sided it. I now find that I cannot select all of the faces. I can either select all of the outside - or by inverting it, all of the inside, but only a few faces on the opposite side. I have optimised the object, but it makes no difference. (I am still version 6.6.5.11 as I am not convinced that v7 is right yet from some of the other posts). I expect that I have overlooked something obvious, but at my age I can handle the embarrassment (and possibly spell it too)

wmalder · Post by **wmalder** » Mon Feb 05, 2007 8:53 pm

It's not an uncommon problem for me either. My work around is to select all faces then individually unselect those I don't want. Sometimes this works and sometimes it doesn't. There is an annoying tendency for some faces, edges or points to become unselectable and I don't know what the reason is. When I have problems with a face I start looking for extra points along the edges. If I have them, I hunt them down and trim them out and often this will return the face to selectabity. If anyone else has fixes/workarounds I'd love to hear them.

kevmt · Post by **kevmt** » Tue Feb 06, 2007 9:00 am

I have had similar problems with selecting faces, Andy.
The only thing I can suggest is that you select all of the outside of the cab and then do a "face split" (think this is one of Pauls "add-on" commands). This should separate the cab into an exterior and interior part and allow you to select both parts separately (I presume for texturing purposes?).

Nice loco, btw.

Cheers,
Kevin

decapod · Post by **decapod** » Tue Feb 06, 2007 9:14 am

If it's 3DC V 6.5, try the repair geometry operation (you may need to enable it first in the options)

6.6.5 and 7.0 removed this operation as it is supposed to do it at run time. However, I suspect there is a bug with it that causes 7.0 to go haywire on complex models.

Failing that try the weld to range plugin and the consolidate - these all tend to help reset the object.

jefran · Post by **jefran** » Wed Feb 07, 2007 5:50 pm

Thanks for the responses - it is nice to know I am not the only one! Being of a lazy disposition, I went for the simplest option and welded to range. I left the parameter at .001 and I can now texture every one of the 48 faces (I did the bunkers as extrusions) individually. I was considering cloning the object in the same place, inverting it and deleting the inside on one and the outside on the other - but this is much easier. Thanks very much.

For those who don't visit the ng forum, he she is in present state

Click the image to zoom in