diff options
Diffstat (limited to 'io_scene_gltf2/blender/imp/gltf2_blender_gltf.py')
| -rwxr-xr-x | io_scene_gltf2/blender/imp/gltf2_blender_gltf.py | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py b/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py index 53b200b2..0f603bf3 100755 --- a/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py +++ b/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py @@ -256,7 +256,14 @@ class BlenderGlTF(): for node_idx, node in enumerate(gltf.data.nodes): node.animations = {} + track_names = set() for anim_idx, anim in enumerate(gltf.data.animations): + # Pick pair-wise unique name for each animation to use as a name + # for its NLA tracks. + desired_name = anim.name or "Anim_%d" % anim_idx + anim.track_name = BlenderGlTF.find_unused_name(track_names, desired_name) + track_names.add(anim.track_name) + for channel_idx, channel in enumerate(anim.channels): if channel.target.node is None: continue @@ -274,3 +281,25 @@ class BlenderGlTF(): mesh.blender_name = None mesh.is_weight_animated = False + @staticmethod + def find_unused_name(haystack, desired_name): + """Finds a name not in haystack and <= 63 UTF-8 bytes. + (the limit on the size of a Blender name.) + If a is taken, tries a.001, then a.002, etc. + """ + stem = desired_name[:63] + suffix = '' + cntr = 1 + while True: + name = stem + suffix + + if len(name.encode('utf-8')) > 63: + stem = stem[:-1] + continue + + if name not in haystack: + return name + + suffix = '.%03d' % cntr + cntr += 1 + |