From b2adbc6ba56d9e4380325866b8a3ae6d2d907a39 Mon Sep 17 00:00:00 2001
From: Julien Duroure <julien.duroure@gmail.com>
Date: Tue, 22 Feb 2022 20:19:07 +0100
Subject: [PATCH] glTF exporter: optimized anims can now be disabled
---
io_scene_gltf2/__init__.py | 14 +++++++++++++-
.../blender/exp/gltf2_blender_export_keys.py | 1 +
...2_blender_gather_animation_sampler_keyframes.py | 3 +++
3 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/io_scene_gltf2/__init__.py b/io_scene_gltf2/__init__.py
index 0bba20bd8..ad899ca6b 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, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin SchmithĂĽsen, Jim Eckerlein, and many external contributors',
- "version": (1, 8, 18),
+ "version": (1, 8, 19),
'blender': (3, 1, 0),
'location': 'File > Import-Export',
'description': 'Import-Export as glTF 2.0',
@@ -390,6 +390,15 @@ class ExportGLTF2_Base:
default=False
)
+ optimize_animation_size: BoolProperty(
+ name='Optimize Animation Size',
+ description=(
+ "Reduces exported filesize by removing duplicate keyframes"
+ "Can cause problems with stepped animation"
+ ),
+ default=True
+ )
+
export_current_frame: BoolProperty(
name='Use Current Frame',
description='Export the scene in the current animation frame',
@@ -582,11 +591,13 @@ class ExportGLTF2_Base:
else:
export_settings['gltf_def_bones'] = False
export_settings['gltf_nla_strips'] = self.export_nla_strips
+ export_settings['gltf_optimize_animation'] = self.optimize_animation_size
else:
export_settings['gltf_frame_range'] = False
export_settings['gltf_move_keyframes'] = False
export_settings['gltf_force_sampling'] = False
export_settings['gltf_def_bones'] = False
+ export_settings['gltf_optimize_animation'] = False
export_settings['gltf_skins'] = self.export_skins
if self.export_skins:
export_settings['gltf_all_vertex_influences'] = self.export_all_influences
@@ -874,6 +885,7 @@ class GLTF_PT_export_animation_export(bpy.types.Panel):
layout.prop(operator, 'export_frame_step')
layout.prop(operator, 'export_force_sampling')
layout.prop(operator, 'export_nla_strips')
+ layout.prop(operator, 'optimize_animation_size')
row = layout.row()
row.active = operator.export_force_sampling
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_export_keys.py b/io_scene_gltf2/blender/exp/gltf2_blender_export_keys.py
index 06fe6a472..ea7b4361f 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_export_keys.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_export_keys.py
@@ -57,6 +57,7 @@ EMBED_IMAGES = 'gltf_embed_images'
BINARY = 'gltf_binary'
EMBED_BUFFERS = 'gltf_embed_buffers'
USE_NO_COLOR = 'gltf_use_no_color'
+OPTIMIZE_ANIMS = 'gltf_optimize_animation'
METALLIC_ROUGHNESS_IMAGE = "metallic_roughness_image"
GROUP_INDEX = 'group_index'
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 caf142174..780460f6b 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
@@ -318,6 +318,9 @@ def gather_keyframes(blender_object_if_armature: typing.Optional[bpy.types.Objec
keyframes.append(key)
+ if not export_settings[gltf2_blender_export_keys.OPTIMIZE_ANIMS]:
+ return keyframes
+
# For armature only
# Check if all values are the same
# In that case, if there is no real keyframe on this channel for this given bone,
--
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