Sorting wrong when sorting Vertices and Faces I'm new to Blender, but I've used Max &amp; Maya in the past, both of which I've never had this problem with.

The issue I'm having is when exporting a simple mesh as .obj the vertex ordering is all messed up.  I have tried sorting the vertices using the Sort Elements in the Mesh menu but it is not working as expected, see below...

v -10.000000 5.000000 0.000000 
v -10.000000 6.000000 0.000000    
v -10.000000 7.000000 0.000000    
v -10.000000 8.000000 0.000000    
v -10.000000 9.000000 0.000000    
v -10.000000 10.000000 0.000000    
v -10.000000 -2.000000 0.000000    
v -10.000000 1.000000 0.000000    
v -10.000000 -1.000000 0.000000    
v -10.000000 2.000000 0.000000    
v -10.000000 3.000000 0.000000    
v -10.000000 4.000000 0.000000    
v -10.000000 0.000000 0.000000


As can be seen the ordering is jumping all over the place instead of sorting properly.
I have tried with 'Keep Vertex Order' and without, it makes no difference.

The only way I can get the sorting to work properly is if I select each Vertex individually and sort it using Selection on that one Vertex to push it to the front, then select the next, repeat, etc..  Obviously this is a ridiculous way of doing it and will take a very long time!!
Am I missing something here, as it seems to me that the sorting is broken?

Is there a way that I can write my own script or rewrite the current sort script to sort the Vertices properly from within Blender, Or am I going to have to write a program to parse through the .obj afterwards to fix this? i.e. ascending X, then ascending Y, like this...

v -10 -10 0
v -10 -9 0
v -10 -8 0
v -10 -7 0
...
v -9 -10 0
v -9 -9 0


etc...

Reason for this being to read the .obj and create a continuous triangle strip for rendering which, in the current format, is impossible without sorting first.

I have searched many forums and found a few similar cases, but with no answers, at least none that have understood the question.

I should point out that the mesh is a plane, x &amp; y coords all at integer values, basically a grid. It's a basic floor mesh!
partly solved!!  (see comments below)

OK then....

Just updated Blender from 2.71 to 2.72.... everything works as it should now, weird!!  The vertices and faces are sorted properly.

Had 2.71 on PC and laptop, still got 2.71 on PC and it doesn't sort the vertices properly, now that I've updated laptop to 2.72 that works fine!!

Some weird bug that they've fixed?  Either way, I'm good now.

Thank you stacker and G.Rassovsky for your responses.