2.63 official build BMesh bug or .. ?

After watching some encouraging vids on 2.63, I decided to give it a spin.

I used Knife tool to cut an NGon on top of the default cube and extrude it. I didn’t get to extruding because of the following error:

All I did was K > draw the shape > Enter to confirm > Select one of those edges > X > Dissolve and BAM! Judging by the Blender Cookie video those 2 edges were suppose to be dissolved easily (actually, there shouldn’t be any extra edges created after the cut).

So what’s the deal? Thanks.

P.S. Blender 2.63 official Linux 64bit build.

I’ve I remember correctly (or I could be wrong) B-mesh didn’t support “holes” in faces.

You can’t currently have a hole in a face without having at least two support edges, it might change in the future but currently it does not work.

I reported this 2 months ago :

But as you can see from Brecht Van Lommel reply it’s a current limitation of Bmesh, maybe in the future there will be some changes regarding this.

Related tracker report: http://projects.blender.org/tracker/index.php?func=detail&aid=30434&group_id=9&atid=498

Here’s a somewhat related tracker report about holes in faces: http://projects.blender.org/tracker/?func=detail&atid=498&aid=31114&group_id=9

edit: oops, Sanctuary beat me, I recalled seeing their bug report but I had to find it… :stuck_out_tongue:

Just to make it clear, there shouldn’t be any hole. I was hoping to get a cut, not a hole. Blender punched a hole automatically and I didn’t see that coming.

You likely didn’t press the E-key when cutting to make that second edge that it needs. As Howard Trickey says, “it has to be connected up to the containing face by two edges in order to make a structure that follows internal mesh rules.”

I just tested it. I pressed E after I closed the cut and what it did it simply disconnected the Knife from that contour so I could make second cut. After I punched Enter, Blender still cut the hole and kept these 2 edges, which I can’t dissolve.

You can’t have an “island” that will cause a donut face around it if that makes more sense than hole. You just need to terminate some edges somewhere to keep it from being a donut is all.

How are you liking bmesh so far? IRRC you were lukewarm to it awhile ago.

well, I actually though I can cut islands like that on a plane and extrude them. That being said I haven’t given any other try to B-Mesh. Also I read in the mailing list that there are few major bugs in 2.63 and that 2.63a will follow soon. So I guess I’ll wait :slight_smile: