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I've imported a file and it seems corrupted, it in not due to Blender. But I wonder if this "corrupted" mesh is still usable or not? Originally, it was a haircut.

When I switch to edit mode, nothing is shown and I cant use "make edge/face". It says "more vertices are needed".

here is the file: http://www.mediafire.com/download/5sk6acagdbu7ea0/untitled.zip

mesh corrupted

EDIT: In fact, the problem can't be solved in Blender itself, as the tool used to import/export the .m2 file will mess up the result in-game, even if it looks ok in Blender.

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  • $\begingroup$ Would you upload the original file before import? $\endgroup$ – Leon Cheung Jan 17 '15 at 11:36
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    $\begingroup$ @Quezako perhaps one these techniques work for you blender.stackexchange.com/questions/7028/… $\endgroup$ – stacker Jan 17 '15 at 16:30
  • $\begingroup$ Thanks, the result is great! But I don't know why, it won't export to WoW format afer that. The export plugin is quite old. I'll try again by selecting just a few dots. $\endgroup$ – Quezako Jan 18 '15 at 19:06
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without any index/face data, I don't think there is any simple way to get the mesh restored as it was, however if this really means a lot to you, it can be reconstructed from the point clouds using various tools that are available.

Here I started with Dupliverts(lots of docs available, easy to use) to visualize the points as a mesh and to create a basis for using the ShrinkWrap modifier.

enter image description here

You can use Make Duplicates Real Ctrl+Shift+a to convert the dupliverts to individual sphere meshes. If you select one of them, and double tap a, they will all be selected and when you press Ctrl+j, they will all be joined into one object.

Now you can use the Shrink Wrap modifier to wrap a simple mesh onto the surface. I started with a cube and added a Subdivision Surface Modifier, after that, you can add the ShrinkWrap Modifier below the Sub-D modifier.

enter image description here

Now with the ShrinkWrap, the hair shape is a lot more obvious, it was really messy because of all the holes between the spheres, the ShrinkWrap projected through them in a lot of places so I selected the spheres and used Alt+s to scale them up in the direction of the normals. This makes them 'fatter'.

enter image description here

I deleted some of the mess and ended up with the following which looks like it should be useable as a starting point for you to finish re-modeling the hair.

enter image description here

Here's a link the .blend to save you a few steps if you would like to take this further. http://www.pasteall.org/blend/33940

You can also combine cloth simulations to build a mesh that approximates the outer surface of the spheres without tearing through all the spaces between them. Simply rotate the model to face different directions and add a Collision Physics simulation to them.

Now add a sub-divided plane and a cloth simulation to it. When you run the simulation, the cloth will drape over the spheres without falling through the holes like the shrink wrap tends to do.

enter image description here

If you apply the various simulations and trim the resulting mesh then you can join them together and use that as the basis for a ShrinkWrap.(Or you could do some mesh modeling to connect the cloth sim results).

Here's what ShrinkWrap looks like over two cloth sims that were trimmed and joined

enter image description here

Now you can use the b-surfaces tool, polystripes, or extrusion combined with snapping to build up stripes of geometry that look like hair using this base model as a guide for the positions and shape.

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  • $\begingroup$ Thanks for this solution, it is very clever. But I realized that the only way to make the model wok in game is to get a good file from the start. The problem is that this file is an intermediate one and when it is exported back to WoW, the faces do not correspond to the original information, so the mesh is all messed up, in-game, even if it looks ok in Blender. Sorry, I will put this question as solved or "not a Blender question". $\endgroup$ – Quezako Jan 23 '15 at 16:00
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You are in edge select mode, this is why you can not select single vertices:

enter image description here

Click the leftmost of the marked buttons, then you can select vertices again.

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  • $\begingroup$ Thanks, I've made progress here, but still, I can recreate faces. The only way I've found is by selecting 3 vertex then hit F, but if I have to do that for each face, it will be a titan work! $\endgroup$ – Quezako Jan 17 '15 at 13:35
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For some reason your file the visibility of many objects is switched off you can toggle this in the outliner:

enter image description here

Or press Alt-H to unhide all.

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  • $\begingroup$ Thanks, but it is normal, I've hidden all other meshes, the only one I talk about is the shown one. $\endgroup$ – Quezako Jan 17 '15 at 13:34

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