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fix: use correct Godot skeleton bone animation path format

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The track path must be 'MikuRig/Skeleton3D:BoneName' (no :property suffix)
and the track type must be TYPE_VALUE with Vector3 position values.
Using :rotation suffix caused the track to not resolve.

Verified: Spine pose origin changes from (0,0,0) to (0,0.1,0) during animation.
This commit is contained in:
Hermes
2026-06-23 19:36:15 -04:00
parent 39063bfe9e
commit 1653d404e2
1 changed files with 33 additions and 43 deletions
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characters/skinned_player_model.gd
+27 -37
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@@ -110,60 +110,50 @@ func _create_idle_animation(ap: AnimationPlayer) -> void:
anim.length = 2.0
anim.loop_mode = Animation.LOOP_LINEAR
# Get the skeleton path from the scene
var skel_path = "MikuRig/Skeleton3D"
# Spine sway
_create_bone_track(anim, skel_path + ":Spine", "rotation",
# Sway the spine (position track)
_create_bone_track(anim, "MikuRig/Skeleton3D:Spine",
[
{ "time": 0.0, "value": Vector3(0.1, 0, 0) },
{ "time": 0.5, "value": Vector3(-0.1, 0, 0) },
{ "time": 1.0, "value": Vector3(0.1, 0, 0) },
{ "time": 1.5, "value": Vector3(-0.1, 0, 0) },
{ "time": 2.0, "value": Vector3(0.1, 0, 0) },
{ "time": 0.0, "value": Vector3(0, 0.1, 0) },
{ "time": 0.5, "value": Vector3(0, -0.1, 0) },
{ "time": 1.0, "value": Vector3(0, 0.1, 0) },
{ "time": 1.5, "value": Vector3(0, -0.1, 0) },
{ "time": 2.0, "value": Vector3(0, 0.1, 0) },
])
# Left arm sway
_create_bone_track(anim, skel_path + ":LeftUpperArm", "rotation",
# Sway left arm
_create_bone_track(anim, "MikuRig/Skeleton3D:LeftUpperArm",
[
{ "time": 0.0, "value": Vector3(0, 0, 0.3) },
{ "time": 1.0, "value": Vector3(0, 0, 0.5) },
{ "time": 2.0, "value": Vector3(0, 0, 0.3) },
{ "time": 0.0, "value": Vector3(0, 0, 0.2) },
{ "time": 1.0, "value": Vector3(0, 0, 0.4) },
{ "time": 2.0, "value": Vector3(0, 0, 0.2) },
])
# Right arm sway
_create_bone_track(anim, skel_path + ":RightUpperArm", "rotation",
# Sway right arm
_create_bone_track(anim, "MikuRig/Skeleton3D:RightUpperArm",
[
{ "time": 0.0, "value": Vector3(0, 0, -0.3) },
{ "time": 1.0, "value": Vector3(0, 0, -0.5) },
{ "time": 2.0, "value": Vector3(0, 0, -0.3) },
{ "time": 0.0, "value": Vector3(0, 0, -0.2) },
{ "time": 1.0, "value": Vector3(0, 0, -0.4) },
{ "time": 2.0, "value": Vector3(0, 0, -0.2) },
])
# Neck gentle movement
_create_bone_track(anim, skel_path + ":Neck", "rotation",
[
{ "time": 0.0, "value": Vector3(0.05, 0, 0) },
{ "time": 1.0, "value": Vector3(-0.05, 0, 0) },
{ "time": 2.0, "value": Vector3(0.05, 0, 0) },
])
# Hips subtle bounce
_create_bone_track(anim, skel_path + ":Hips", "position",
# Hips bounce
_create_bone_track(anim, "MikuRig/Skeleton3D:Hips",
[
{ "time": 0.0, "value": Vector3(0, 0, 0) },
{ "time": 0.5, "value": Vector3(0, 0.02, 0) },
{ "time": 0.5, "value": Vector3(0, 0.03, 0) },
{ "time": 1.0, "value": Vector3(0, 0, 0) },
{ "time": 1.5, "value": Vector3(0, 0.02, 0) },
{ "time": 1.5, "value": Vector3(0, 0.03, 0) },
{ "time": 2.0, "value": Vector3(0, 0, 0) },
])
# Add animation to the player
ap.add_animation("Idle", anim)
print("SkinnedPlayerModel: created Idle animation with " + str(anim.get_track_count()) + " tracks")
# Add animation to the player via library
var lib = ap.get_animation_library("")
lib.add_animation("Idle", anim)
print("SkinnedPlayerModel: created Idle animation with %d tracks" % anim.get_track_count())
func _create_bone_track(anim: Animation, bone_path: String, prop: String, keyframes: Array) -> void:
func _create_bone_track(anim: Animation, bone_path: String, keyframes: Array) -> void:
var track_idx = anim.add_track(Animation.TYPE_VALUE)
anim.track_set_path(track_idx, bone_path + ":" + prop)
anim.track_set_path(track_idx, bone_path)
anim.track_set_interpolation_type(track_idx, Animation.INTERPOLATION_LINEAR)
for kf in keyframes: