[Bf-extensions-cvs] [06766ff5] blender-v2.81-release: glTF exporter: fix exporting shapekeys animation when some sk are not animated

Julien Duroure noreply at git.blender.org
Sat Oct 12 13:22:40 CEST 2019


Commit: 06766ff5d5932a7acb05a45d6cd045e5374e6b38
Author: Julien Duroure
Date:   Sat Oct 12 13:21:42 2019 +0200
Branches: blender-v2.81-release
https://developer.blender.org/rBA06766ff5d5932a7acb05a45d6cd045e5374e6b38

glTF exporter: fix exporting shapekeys animation when some sk are not animated

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

M	io_scene_gltf2/__init__.py
M	io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py
M	io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py
M	io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py
M	io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_samplers.py

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

diff --git a/io_scene_gltf2/__init__.py b/io_scene_gltf2/__init__.py
index 0548f2ec..36fda5ce 100755
--- a/io_scene_gltf2/__init__.py
+++ b/io_scene_gltf2/__init__.py
@@ -15,7 +15,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (1, 0, 3),
+    "version": (1, 0, 4),
     'blender': (2, 81, 6),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',
@@ -834,3 +834,4 @@ def unregister():
     # remove from the export / import menu
     bpy.types.TOPBAR_MT_file_export.remove(menu_func_export)
     bpy.types.TOPBAR_MT_file_import.remove(menu_func_import)
+
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py
index 2c458742..04028d20 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py
@@ -78,7 +78,8 @@ def __gather_path(channels: typing.Tuple[bpy.types.FCurve],
                   bake_channel: typing.Union[str, None]
                   ) -> str:
     if bake_channel is None:
-        target = channels[0].data_path.split('.')[-1]
+        # Note: channels has some None items only for SK if some SK are not animated
+        target = [c for c in channels if c is not None][0].data_path.split('.')[-1]
     else:
         target = bake_channel
     path = {
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py
index da963eab..edee0971 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channels.py
@@ -37,16 +37,17 @@ def gather_animation_channels(blender_action: bpy.types.Action,
     bake_range_start = None
     bake_range_end = None
     groups = __get_channel_groups(blender_action, blender_object, export_settings)
+    # Note: channels has some None items only for SK if some SK are not animated
     for chans in groups:
-        ranges = [channel.range() for channel in chans]
+        ranges = [channel.range() for channel in chans  if channel is not None]
         if bake_range_start is None:
-            bake_range_start = min([channel.range()[0] for channel in chans])
+            bake_range_start = min([channel.range()[0] for channel in chans  if channel is not None])
         else:
-            bake_range_start = min(bake_range_start, min([channel.range()[0] for channel in chans]))
+            bake_range_start = min(bake_range_start, min([channel.range()[0] for channel in chans  if channel is not None]))
         if bake_range_end is None:
-            bake_range_end = max([channel.range()[1] for channel in chans])
+            bake_range_end = max([channel.range()[1] for channel in chans  if channel is not None])
         else:
-            bake_range_end = max(bake_range_end, max([channel.range()[1] for channel in chans]))
+            bake_range_end = max(bake_range_end, max([channel.range()[1] for channel in chans  if channel is not None]))
 
 
     if blender_object.type == "ARMATURE" and export_settings['gltf_force_sampling'] is True:
@@ -55,7 +56,7 @@ def gather_animation_channels(blender_action: bpy.types.Action,
         # Check that there are some anim in this action
         if bake_range_start is None:
             return []
-            
+
         # Then bake all bones
         for bone in blender_object.data.bones:
             for p in ["location", "rotation_quaternion", "scale"]:
@@ -96,7 +97,21 @@ def __get_channel_group_sorted(channels: typing.Tuple[bpy.types.FCurve], blender
                 shapekeys_idx[sk.name] = cpt_sk
                 cpt_sk += 1
 
-            return tuple(sorted(channels, key=lambda x: shapekeys_idx[blender_object.data.shape_keys.path_resolve(get_target_object_path(x.data_path)).name]))
+            # Note: channels will have some None items only for SK if some SK are not animated
+            idx_channel_mapping = []
+            all_sorted_channels = []
+            for sk_c in channels:
+                sk_name = blender_object.data.shape_keys.path_resolve(get_target_object_path(sk_c.data_path)).name
+                idx = shapekeys_idx[sk_name]
+                idx_channel_mapping.append((shapekeys_idx[sk_name], sk_c))
+            existing_idx = dict(idx_channel_mapping)
+            for i in range(0, cpt_sk):
+                if i not in existing_idx.keys():
+                    all_sorted_channels.append(None)
+                else:
+                    all_sorted_channels.append(existing_idx[i])
+
+            return tuple(all_sorted_channels)
 
     # if not shapekeys, stay in same order, because order doesn't matter
     return channels
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py
index 8a4f011a..8b6f0db6 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_sampler_keyframes.py
@@ -29,9 +29,15 @@ class Keyframe:
         self.seconds = frame / bpy.context.scene.render.fps
         self.frame = frame
         self.fps = bpy.context.scene.render.fps
+        self.__length_morph = 0
+        # Note: channels has some None items only for SK if some SK are not animated
         if bake_channel is None:
-            self.target = channels[0].data_path.split('.')[-1]
-            self.__indices = [c.array_index for c in channels]
+            self.target = [c for c in channels if c is not None][0].data_path.split('.')[-1]
+            if self.target != "value":
+                self.__indices = [c.array_index for c in channels]
+            else:
+                self.__indices = [i for i, c in enumerate(channels) if c is not None]
+                self.__length_morph = len(channels)
         else:
             self.target = bake_channel
             self.__indices = []
@@ -53,7 +59,7 @@ class Keyframe:
             "rotation_euler": 3,
             "rotation_quaternion": 4,
             "scale": 3,
-            "value": 1
+            "value": self.__length_morph
         }.get(self.target)
 
         if length is None:
@@ -62,17 +68,18 @@ class Keyframe:
         return length
 
     def __set_indexed(self, value):
-        # 'value' targets don't use keyframe.array_index
-        if self.target == "value":
-            return value
         # Sometimes blender animations only reference a subset of components of a data target. Keyframe should always
         # contain a complete Vector/ Quaternion --> use the array_index value of the keyframe to set components in such
         # structures
+        # For SK, must contains all SK values
         result = [0.0] * self.get_target_len()
         for i, v in zip(self.__indices, value):
             result[i] = v
-        result = gltf2_blender_math.list_to_mathutils(result, self.target)
-        return result
+        if self.target == "value":
+            return result
+        else:
+            result = gltf2_blender_math.list_to_mathutils(result, self.target)
+            return result
 
     def get_indices(self):
         return self.__indices
@@ -164,10 +171,11 @@ def gather_keyframes(blender_object_if_armature: typing.Optional[bpy.types.Objec
     """Convert the blender action groups' fcurves to keyframes for use in glTF."""
     if bake_bone is None:
         # Find the start and end of the whole action group
-        ranges = [channel.range() for channel in channels]
+        # Note: channels has some None items only for SK if some SK are not animated
+        ranges = [channel.range() for channel in channels if channel is not None]
 
-        start_frame = min([channel.range()[0] for channel in channels])
-        end_frame = max([channel.range()[1] for channel in channels])
+        start_frame = min([channel.range()[0] for channel in channels  if channel is not None])
+        end_frame = max([channel.range()[1] for channel in channels  if channel is not None])
     else:
         start_frame = bake_range_start
         end_frame = bake_range_end
@@ -218,25 +226,27 @@ def gather_keyframes(blender_object_if_armature: typing.Optional[bpy.types.Objec
                     "scale": scale
                 }[target_property]
             else:
-                key.value = [c.evaluate(frame) for c in channels]
+                # Note: channels has some None items only for SK if some SK are not animated
+                key.value = [c.evaluate(frame) for c in channels if c is not None]
                 complete_key(key, non_keyed_values)
             keyframes.append(key)
             frame += step
     else:
         # Just use the keyframes as they are specified in blender
-        frames = [keyframe.co[0] for keyframe in channels[0].keyframe_points]
+        # Note: channels has some None items only for SK if some SK are not animated
+        frames = [keyframe.co[0] for keyframe in [c for c in channels if c is not None][0].keyframe_points]
         # some weird files have duplicate frame at same time, removed them
         frames = sorted(set(frames))
         for i, frame in enumerate(frames):
             key = Keyframe(channels, frame, bake_channel)
             # key.value = [c.keyframe_points[i].co[0] for c in action_group.channels]
-            key.value = [c.evaluate(frame) for c in channels]
+            key.value = [c.evaluate(frame) for c in channels if c is not None]
             # Complete key with non keyed values, if needed
-            if len(channels) != key.get_target_len():
+            if len([c for c in channels if c is not None]) != key.get_target_len():
                 complete_key(key, non_keyed_values)
 
             # compute tangents for cubic spline interpolation
-            if channels[0].keyframe_points[0].interpolation == "BEZIER":
+            if [c for c in channels i

@@ Diff output truncated at 10240 characters. @@



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