[Bf-extensions-cvs] [6b6026b] master: FBX export: force to write animcurves even when we could avoid it (only one value [feyframe] in it), when exporting actions.

[Bastien Montagne]

Commit: 6b6026be129bd83b9f51b6bf5e90bf236a4965e7
Author: Bastien Montagne
Date:   Thu May 8 10:57:34 2014 +0200
https://developer.blender.org/rBA6b6026be129bd83b9f51b6bf5e90bf236a4965e7

FBX export: force to write animcurves even when we could avoid it (only one value [feyframe] in it),
when exporting actions.

Note this is not ideal either, since some non-animated parts might be keyed now... No ideal solution,
but in case of actions, probably this is better than not exporting 'static' actions.

===================================================================

M	io_scene_fbx/export_fbx_bin.py

===================================================================

diff --git a/io_scene_fbx/export_fbx_bin.py b/io_scene_fbx/export_fbx_bin.py
index 8387859..e91c596 100644
--- a/io_scene_fbx/export_fbx_bin.py
+++ b/io_scene_fbx/export_fbx_bin.py
@@ -2232,7 +2232,7 @@ def fbx_animations_simplify(scene_data, animdata):
         p_key_write[:] = [True] * len(p_key_write)
 
 
-def fbx_animations_objects_do(scene_data, ref_id, f_start, f_end, start_zero, objects=None):
+def fbx_animations_objects_do(scene_data, ref_id, f_start, f_end, start_zero, objects=None, force_keep=False):
     """
     Generate animation data (a single AnimStack) from objects, for a given frame range.
     """
@@ -2329,7 +2329,8 @@ def fbx_animations_objects_do(scene_data, ref_id, f_start, f_end, start_zero, ob
             if fbx_group not in final_keys:
                 fbx_group_key = get_blender_anim_curve_node_key(scene, ref_id, obj_key, fbx_group)
                 final_keys[fbx_group] = (fbx_group_key, OrderedDict(), fbx_gname)
-            final_keys[fbx_group][1][fbx_item] = (fbx_item_key, dtx[idx], c, True if len(c) > 1 else False)
+            final_keys[fbx_group][1][fbx_item] = (fbx_item_key, dtx[idx], c,
+                                                  True if (len(c) > 1 or (len(c) > 0 and force_keep)) else False)
         # And now, remove anim groups (i.e. groups of curves affecting a single FBX property) with no curve at all!
         del_groups = []
         for grp, (_k, data, _n) in final_keys.items():
@@ -2453,7 +2454,7 @@ def fbx_animations_objects(scene_data):
                 obj.animation_data.action = act
                 frame_start, frame_end = act.frame_range  # sic!
                 add_anim(animations,
-                         fbx_animations_objects_do(scene_data, (obj, act), frame_start, frame_end, True, {obj}))
+                         fbx_animations_objects_do(scene_data, (obj, act), frame_start, frame_end, True, {obj}, True))
                 # Ugly! :/
                 obj.animation_data.action = None if org_act is ... else org_act
                 restore_object(obj, obj_copy)