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Fix T41931: FBX export: 'Group' batch export was using default scene unit scale. 

Now, find the scene most 'used' by exported group elements, and use its unit settings!
This commit is contained in:
Bastien Montagne 2014-10-03 14:47:22 +02:00
parent 5be03a4071
commit c210f87f12
Notes: blender-bot 2023-02-14 10:03:35 +01:00 
Referenced by issue blender/blender#41931, FBX batch export with custom scene units and scales --> worked fine in UE4 editor, but  when importing to Maya or 3DsMax for post-editing, the models are 100 times bigger.
2 changed files with 34 additions and 0 deletions
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17
io_scene_fbx/export_fbx_bin.py
View File

@ -2800,9 +2800,26 @@ def save(operator, context,
scene = bpy.data.scenes.new(name="FBX_Temp")
scene.layers = [True] * 20
# bpy.data.scenes.active = scene # XXX, cant switch
src_scenes = {} # Count how much each 'source' scenes are used.
for ob_base in data.objects:
for src_sce in ob_base.users_scene:
if src_sce not in src_scenes:
src_scenes[src_sce] = 0
src_scenes[src_sce] += 1
scene.objects.link(ob_base)
# Find the 'most used' source scene, and use its unit settings. This is somewhat weak, but should work
# fine in most cases, and avoids stupid issues like T41931.
best_src_scene = None
best_src_scene_users = 0
for sce, nbr_users in src_scenes.items():
if (nbr_users) > best_src_scene_users:
best_src_scene_users = nbr_users
best_src_scene = sce
scene.unit_settings.system = best_src_scene.unit_settings.system
scene.unit_settings.system_rotation = best_src_scene.unit_settings.system_rotation
scene.unit_settings.scale_length = best_src_scene.unit_settings.scale_length
scene.update()
# TODO - BUMMER! Armatures not in the group wont animate the mesh
else:

17
io_scene_fbx_experimental/export_fbx_bin.py
View File

@ -2926,9 +2926,26 @@ def save(operator, context,
scene = bpy.data.scenes.new(name="FBX_Temp")
scene.layers = [True] * 20
# bpy.data.scenes.active = scene # XXX, cant switch
src_scenes = {} # Count how much each 'source' scenes are used.
for ob_base in data.objects:
for src_sce in ob_base.users_scene:
if src_sce not in src_scenes:
src_scenes[src_sce] = 0
src_scenes[src_sce] += 1
scene.objects.link(ob_base)
# Find the 'most used' source scene, and use its unit settings. This is somewhat weak, but should work
# fine in most cases, and avoids stupid issues like T41931.
best_src_scene = None
best_src_scene_users = 0
for sce, nbr_users in src_scenes.items():
if (nbr_users) > best_src_scene_users:
best_src_scene_users = nbr_users
best_src_scene = sce
scene.unit_settings.system = best_src_scene.unit_settings.system
scene.unit_settings.system_rotation = best_src_scene.unit_settings.system_rotation
scene.unit_settings.scale_length = best_src_scene.unit_settings.scale_length
scene.update()
# TODO - BUMMER! Armatures not in the group wont animate the mesh
else: