Fix #6, rotation matrix of tag must be inverted

neumond · Jul 9, 2017 · 03151e4 · 03151e4
1 parent 1d0a663
commit 03151e4
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Showing 2 changed files with 4 additions and 7 deletions.
diff --git a/io_scene_md3/export_md3.py b/io_scene_md3/export_md3.py
@@ -115,13 +115,11 @@ def __init__(self, context):
 
     def pack_tag(self, name):
         tag = bpy.context.scene.objects[name]
-        ox = tuple(tag.matrix_basis[0][:3])
-        oy = tuple(tag.matrix_basis[1][:3])
-        oz = tuple(tag.matrix_basis[2][:3])
+        m = tag.matrix_basis.transposed()
         return fmt.Tag.pack(
             name=prepare_name(tag.name),
             origin=tuple(tag.location),
-            axis=ox + oy + oz,
+            axis=sum([tuple(m[j].xyz) for j in range(3)], ()),
         )
 
     def pack_animated_tags(self):

diff --git a/io_scene_md3/import_md3.py b/io_scene_md3/import_md3.py
@@ -45,10 +45,9 @@ def guess_texture_filepath(modelpath, imagepath):
 
 
 def get_tag_matrix_basis(data):
-    o = [mathutils.Vector(data.axis[k:k+3]) for k in range(0, 9, 3)]
-    basis = mathutils.Matrix()
+    basis = mathutils.Matrix.Identity(4)
     for j in range(3):
-        basis[j].xyz = o[j]
+        basis[j].xyz = data.axis[j::3]
     basis.translation = mathutils.Vector(data.origin)
     return basis