diff --git a/io_scene_gltf2/__init__.py b/io_scene_gltf2/__init__.py
index 3034595bf594514056be4b9cb2ac37f077d1fcde..4fad230dc26b7b9a33b77b580ddeffc953836e84 100755
--- a/io_scene_gltf2/__init__.py
+++ b/io_scene_gltf2/__init__.py
@@ -4,7 +4,7 @@
bl_info = {
'name': 'glTF 2.0 format',
'author': 'Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin SchmithĂĽsen, Jim Eckerlein, and many external contributors',
- "version": (3, 4, 15),
+ "version": (3, 4, 16),
'blender': (3, 3, 0),
'location': 'File > Import-Export',
'description': 'Import-Export as glTF 2.0',
diff --git a/io_scene_gltf2/blender/com/gltf2_blender_data_path.py b/io_scene_gltf2/blender/com/gltf2_blender_data_path.py
index a329193a71c792da4158950311beacf980815949..9aeeb5dc744c4348ad7c183697217e1714417b87 100755
--- a/io_scene_gltf2/blender/com/gltf2_blender_data_path.py
+++ b/io_scene_gltf2/blender/com/gltf2_blender_data_path.py
@@ -15,20 +15,33 @@ def get_target_object_path(data_path: str) -> str:
return ""
return path_split[0]
-def get_rotation_modes(target_property: str) -> str:
+def get_rotation_modes(target_property: str):
"""Retrieve rotation modes based on target_property"""
if target_property == "rotation_euler":
- return True, False, ["XYZ", "XZY", "YXZ", "YZX", "ZXY", "ZYX"]
+ return True, ["XYZ", "XZY", "YXZ", "YZX", "ZXY", "ZYX"]
elif target_property == "delta_rotation_euler":
- return True, True, ["XYZ", "XZY", "YXZ", "YZX", "ZXY", "ZYX"]
+ return True, ["XYZ", "XZY", "YXZ", "YZX", "ZXY", "ZYX"]
elif target_property == "rotation_quaternion":
- return True, False, ["QUATERNION"]
+ return True, ["QUATERNION"]
elif target_property == "delta_rotation_quaternion":
- return True, True, ["QUATERNION"]
+ return True, ["QUATERNION"]
elif target_property in ["rotation_axis_angle"]:
- return True, False, ["AXIS_ANGLE"]
+ return True, ["AXIS_ANGLE"]
else:
- return False, False, []
+ return False, []
+
+def is_location(target_property):
+ return "location" in target_property
+
+def is_rotation(target_property):
+ return "rotation" in target_property
+
+def is_scale(target_property):
+ return "scale" in target_property
+
+def get_delta_modes(target_property: str) -> str:
+ """Retrieve location based on target_property"""
+ return target_property.startswith("delta_")
def is_bone_anim_channel(data_path: str) -> bool:
return data_path[:10] == "pose.bones"
\ No newline at end of file
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 3e67f1f70be82d08c6141d0e4866d35aeddebb1b..e7235254a0ba8c47196bdb040eb68084b97cf609 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
@@ -4,7 +4,7 @@
import bpy
import typing
-from ..com.gltf2_blender_data_path import get_target_object_path, get_target_property_name, get_rotation_modes
+from ..com.gltf2_blender_data_path import get_target_object_path, get_target_property_name, get_rotation_modes, get_delta_modes, is_location, is_rotation, is_scale
from io_scene_gltf2.io.com import gltf2_io
from io_scene_gltf2.io.com import gltf2_io_debug
from io_scene_gltf2.blender.exp.gltf2_blender_gather_cache import cached
@@ -364,6 +364,8 @@ def __get_channel_groups(blender_action: bpy.types.Action, blender_object: bpy.t
targets = {}
multiple_rotation_mode_detected = False
delta_rotation_detection = [False, False] # Normal / Delta
+ delta_location_detection = [False, False] # Normal / Delta
+ delta_scale_detection = [False, False] # Normal / Delta
for fcurve in blender_action.fcurves:
# In some invalid files, channel hasn't any keyframes ... this channel need to be ignored
if len(fcurve.keyframe_points) == 0:
@@ -405,24 +407,46 @@ def __get_channel_groups(blender_action: bpy.types.Action, blender_object: bpy.t
# Detect that object or bone are not multiple keyed for euler and quaternion
# Keep only the current rotation mode used by object
- rotation, delta, rotation_modes = get_rotation_modes(target_property)
+ rotation, rotation_modes = get_rotation_modes(target_property)
+ delta = get_delta_modes(target_property)
# Delta rotation management
- if delta is False:
- if delta_rotation_detection[1] is True: # normal rotation coming, but delta is already present
- multiple_rotation_mode_detected = True
- continue
- delta_rotation_detection[0] = True
- else:
- if delta_rotation_detection[0] is True: # delta rotation coming, but normal is already present
+ if is_rotation(target_property) :
+ if delta is False:
+ if delta_rotation_detection[1] is True: # normal rotation coming, but delta is already present
+ continue
+ delta_rotation_detection[0] = True
+ else:
+ if delta_rotation_detection[0] is True: # delta rotation coming, but normal is already present
+ continue
+ delta_rotation_detection[1] = True
+
+
+ if rotation and target.rotation_mode not in rotation_modes:
multiple_rotation_mode_detected = True
continue
- delta_rotation_detection[1] = True
+ # Delta location management
+ if is_location(target_property):
+ if delta is False:
+ if delta_location_detection[1] is True: # normal location coming, but delta is already present
+ continue
+ delta_location_detection[0] = True
+ else:
+ if delta_location_detection[0] is True: # delta location coming, but normal is already present
+ continue
+ delta_location_detection[1] = True
- if rotation and target.rotation_mode not in rotation_modes:
- multiple_rotation_mode_detected = True
- continue
+ # Delta scale management
+ if is_scale(target_property):
+ if delta is False:
+ if delta_scale_detection[1] is True: # normal scale coming, but delta is already present
+ continue
+ delta_scale_detection[0] = True
+ else:
+ if delta_scale_detection[0] is True: # delta scale coming, but normal is already present
+ continue
+ delta_scale_detection[1] = True
# group channels by target object and affected property of the target
target_properties = targets.get(target, {})
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 53d789451084cf1f2b75ae756fe026d31d96355c..b73c61b8d0387769faddabd03ea43cc5ac71213e 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
@@ -45,6 +45,7 @@ class Keyframe:
length = {
"delta_location": 3,
"delta_rotation_euler": 3,
+ "delta_scale": 3,
"location": 3,
"rotation_axis_angle": 4,
"rotation_euler": 3,
@@ -367,7 +368,10 @@ def gather_keyframes(blender_obj_uuid: str,
"rotation_axis_angle": [rot.to_axis_angle()[1], rot.to_axis_angle()[0][0], rot.to_axis_angle()[0][1], rot.to_axis_angle()[0][2]],
"rotation_euler": rot.to_euler(),
"rotation_quaternion": rot,
- "scale": sca
+ "scale": sca,
+ "delta_location": trans,
+ "delta_rotation_euler": rot.to_euler(),
+ "delta_scale": sca
}[target]
else:
key.value = get_sk_driver_values(driver_obj_uuid, frame, channels, export_settings)