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Blender exporter update #48

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Merged
chalonverse merged 12 commits into from
Feb 4, 2024
Merged

Blender exporter update #48

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d10c5e3
export mesh and skeleton
michaeleggers Jan 5, 2022
5a12693
test if there is a parent at all
michaeleggers Jan 7, 2022
6b6707a
export gpanim
michaeleggers Jan 7, 2022
56e197b
add Assets-string before texture. Amend framecount. Add comments
michaeleggers Jan 8, 2022
5910d7c
rename function. Set action for armature
michaeleggers Jan 8, 2022
2d095a8
add sample blender file
michaeleggers Jan 8, 2022
2abb163
delete enum from example
michaeleggers Jan 8, 2022
8bbc5a8
flipping y,z
michaeleggers Jan 9, 2022
0e19586
idle pose works, matrix mult is @!
michaeleggers Jan 13, 2022
9938c8f
invert quaternions
michaeleggers Jan 13, 2022
91a7f71
fix UV export and add documentation
michaeleggers Jan 22, 2022
42a1c05
rename exporter-script. delete old files
michaeleggers Jan 22, 2022
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export gpanim
  • Loading branch information
@michaeleggers
michaeleggers committed Jan 7, 2022
commit 6b6707a10d88ec6afeb24946b4de52c187ceded5
62 changes: 57 additions & 5 deletions Exporter/Blender/gpmesh_export.py
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,15 @@ def generate_gpmesh_json():

return gpmesh

def find_armature(active_object):
armature = active_object
while armature.parent and armature.type != 'ARMATURE':
armature = armature.parent

if armature.type == 'ARMATURE':
return armature
return None

def generate_gpskel_json():
gpskel = {
"version": 1,
Expand All @@ -87,11 +96,8 @@ def generate_gpskel_json():
}
boneInfos = []

armature = bpy.context.active_object
while armature.parent and armature.type != 'ARMATURE':
armature = armature.parent

if armature != bpy.context.active_object:
armature = find_armature(bpy.context.active_object)
if armature:
armature = armature.data
for i, bone in enumerate(armature.bones):
parentBone = bone.parent
Expand Down Expand Up @@ -119,6 +125,41 @@ def generate_gpskel_json():

return gpskel

def generate_gpanim_json(action):
gpanim = {
"version": 1,
"sequence": {
"frames": 0,
"length": 0.0,
"bonecount": 0,
"tracks": []
}
}
active_object = bpy.context.active_object
active_object.animation_data.action = action
armature = find_armature(active_object)
frame_start, frame_end = int(action.frame_range.x), int(action.frame_range.y)
gpanim["sequence"]["frames"] = frame_end
gpanim["sequence"]["bonecount"] = len(armature.data.bones)
for i, bone in enumerate(armature.pose.bones):
track = {
"bone": i,
"transforms": []
}
for frame in range(frame_start, frame_end):
bpy.context.scene.frame_set(frame)
rot = bone.matrix.to_quaternion()
trans = bone.matrix.to_translation()
transform = {
"rot": [rot.x, rot.y, rot.z, rot.w],
"trans": [trans.x, trans.y, trans.z]
}
track["transforms"].append(transform)

gpanim["sequence"]["tracks"].append(track)

return gpanim

def write_some_data(context, filepath, export_gpmesh, export_gpskel, export_gpanim):
print("exporting to gpmesh...")

Expand All @@ -136,6 +177,17 @@ def write_some_data(context, filepath, export_gpmesh, export_gpskel, export_gpan
f.write(json.dumps(gpskel, sort_keys=False, indent=2))
f.close()

if export_gpanim:
print("EXPORT GPANIM")
actions = bpy.data.actions
print(actions)
for action in actions:
gpanim = generate_gpanim_json(action)
gpanim_filepath = filepath.split(".")[0] + str(action.name) + '.gpanim'
f = open(gpanim_filepath, "w", encoding="utf-8")
f.write(json.dumps(gpanim, sort_keys=False, indent=2))
f.close()

print("Done!")

return {'FINISHED'}
Expand Down