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Fix T41712: bis - we can run into some cases where objects or bones have degenerated 

matrices, so better to use inverted_safe() in those cases.
This commit is contained in:
Bastien Montagne 2014-09-06 15:06:36 +02:00
parent 9055cf8ff8
commit 1ba40272a0
Notes: blender-bot 2023-02-14 20:04:13 +01:00 
Referenced by issue #41712, [FBX Importer] Does not impor fbx model
1 changed files with 5 additions and 5 deletions
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10
io_scene_fbx/import_fbx.py
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@ -498,10 +498,10 @@ def blen_read_armatures_add_bone(bl_obj, bl_arm, bones, b_uuid, matrices, fbx_tm
mmat_glob = bmat_glob * mmat_bone
# We seek for matrix of bone in armature space...
bmat_arm = amat_glob.inverted() * bmat_glob
bmat_arm = amat_glob.inverted_safe() * bmat_glob
# Bone correction, works here...
bmat_loc = (p_ebo.matrix.inverted() * bmat_arm) if p_ebo else bmat_arm
bmat_loc = (p_ebo.matrix.inverted_safe() * bmat_arm) if p_ebo else bmat_arm
bmat_loc = bmat_loc * MAT_CONVERT_BONE
bmat_arm = (p_ebo.matrix * bmat_loc) if p_ebo else bmat_loc
else:
@ -756,8 +756,8 @@ def blen_read_animations_action_item(action, item, cnodes, force_global, fps, se
# First, get local (i.e. parentspace) rest pose matrix
restmat = item.bone.matrix_local
if item.parent:
restmat = item.parent.bone.matrix_local.inverted() * restmat
restmat_inv = restmat.inverted()
restmat = item.parent.bone.matrix_local.inverted_safe() * restmat
restmat_inv = restmat.inverted_safe()
# We assume for now blen init point is frame 1.0, while FBX ktime init point is 0.
for frame, values in blen_read_animations_curves_iter(fbx_curves, 1.0, 0, fps):
@ -1970,7 +1970,7 @@ def load(operator, context, filepath="",
# Rigged meshes are in global space in FBX...
ob_me.matrix_basis = global_matrix * ob_me.matrix_basis
# And reverse-apply armature transform, so that it gets valid parented (local) position!
ob_me.matrix_parent_inverse = ob_arm.matrix_basis.inverted()
ob_me.matrix_parent_inverse = ob_arm.matrix_basis.inverted_safe()
force_global_objects.add(ob_me)
_(); del _