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LuckyNinja
01-18-2010, 05:40 PM
Hi all, me again. Digression: To save from spamming, I wish to thank those that offered advice for my first problem. A bit later I shall make a reply on that a bit later. End digression

Problem
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When extruding inwards on a corner (ie I make a 3 x 3 x 3 box and select a polygon connected to one on another side), the bottom edge does not disappear, effectively meaning I've got two overlapping faces. Deleting one does nothing, while deleting the other will create an empty space from the edge to the next one closer in.

Any way of dealing with this would be greatly appreciated. If my explanation of my problem hasn't been clear, I am more than happy to supply screenshots.

Thanks in advance,
LuckyNinja

Animasta
01-18-2010, 06:09 PM
If I understand you correctly, you have something like this:

http://img502.imageshack.us/img502/41/55994175.png

And are trying to extrude the selection inward? That would create overlapping polygons, what you would need to do is either size down your selection after you hit extrude, or move the edges of the top and bottom polygons after the extrusion.

LuckyNinja
01-18-2010, 07:02 PM
If I understand you correctly, you have something like this:

http://img502.imageshack.us/img502/41/55994175.png

And are trying to extrude the selection inward? That would create overlapping polygons, what you would need to do is either size down your selection after you hit extrude, or move the edges of the top and bottom polygons after the extrusion.

http://i280.photobucket.com/albums/kk169/madgrenadier99/5_FullScreen.png

http://i280.photobucket.com/albums/kk169/madgrenadier99/6_FullScreen.png

This is what I meant. Sorry for not being clearer (I'm terrible at explaining things). Instead of intersecting as it comes back, the polygon instead overlaps the bottom one, by the looks of it. I'm just finding this a bit of a pain

hypnocookie
01-26-2010, 11:31 AM
Rather than extruding the side 2 polys back could you not extrude the bottom poly up? this should achieve the same result. alternativly, simply delete the overlaped bottom poly then right click and create a new one at the new verticies

jakeh14
01-26-2010, 09:19 PM
Rather than extruding the side 2 polys back could you not extrude the bottom poly up? this should achieve the same result. alternativly, simply delete the overlaped bottom poly then right click and create a new one at the new verticies

I'm not sure what your first suggestion is, but I think if the OP does what you are asking, the model would simply have a hole extruded inward. But I think what the OP wants is a notch taken out of the original geometry which would take a chunk out of two sides of the box. The second suggestion will only result in a second poly just like the first, meaning there will still be overlap.

Try this: instead of selecting the two polys you have in the picture and extruding inwards, select the other polys on that face and extrude outwards.

ezekiel66
01-27-2010, 12:11 PM
Why should the bottom polygon disappear if you don't delete it? It would not make sense.

You could, as was already suggested, extrude the other polygons (marked green on the screenshot below) outward instead of extruding your two polygons inward.

screen (http://img168.imageshack.us/img168/1456/screen4y.jpg)

LuckyNinja
01-28-2010, 08:08 AM
thanks all for your suggestions and advice, but I managed to get into contact with a freelance 3d artist and he (as he always has for my numerous problems) an answer.

He suggested that I delete the two overlapping faces, and then select the border and cap it. So far I've seen no problem by using this (and it does make things a whole lot easier)

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01-28-2010, 08:08 AM
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