mesh files use game space (right-handed, y up): obj/gltf import and export no longer mirror models, per-mesh handedness keeps meshes of old projects as they were, python tools follow (--export-space for the old files)

docs/manual/tutorial-blender.md

@@ -111,6 +111,7 @@ house or a brush course:
 |---|---|
 | model is huge or tiny | wrong unit scale – use **Largest side** + **Fit** |
 | model lies on its side | switch **Up axis** |
+| model is mirrored (text reads backwards) | it was imported with LlamaMod 0.2.0 or earlier – set **Handedness** of the mesh (Assets → **Imported**, Inspector) to **right** |
 | no textures | the MTL or the textures were not next to the OBJ – export with *Path Mode: Copy*, or use `.glb` |
 | texture looks smeared | UV layout is not rectangular – reset UVs of quads, raise **UV precision** |
 | llama falls through | collision is **None** or **Simplified** is not what you wanted – choose **From the mesh**; check with **C** that the surface is coloured; recalculate normals in Blender |