This is mostly a continuation of problems from this thread, but in this case, the issue appears to be different. Not sure if I should necropost it or put it into the 2.1 thread instead, maybe a moderator could decide...
When I try to export a v2 mesh with tangents, it fails with message Exception caught: Meshes with shared vertex buffers can't be dearranged. Without tangents, it works. I could possibly subdivide the meshes a couple of times and hope that LoD would deal with it, avoiding normal maps completely, but something tells me that it's not the right approach.
I have a mesh created with Blender's exporter. I can export it into a v2 mesh totally fine as long as I don't want to generate any normals. Or export it with normals that were generated while exporting to a v1 mesh.
This is what I should do according to OgreMeshTool's help:
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OgreMeshTool -e -t -ts 4 -O puqs sourcefile [destfile]
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OgreMeshTool -e -ts 4 -O puqs sourcefile [destfile]
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OgreMeshTool -v2 -p -t sourcefile [destfile]
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...blablabla...
Mesh names done.
XMLMeshSerializer import successful.
Exception caught: Meshes with shared vertex buffers can't be dearranged.
Any idea what I am doing wrong? Or is it a regression?