IC Python API:RLPy RIObject
- Main article: Modules.
- Last modified: 04/14/2020
Description
This class is used to access the bone node parameters in a character skeleton or object. Retrievable parameters include name, ID, parent node, list of child nodes, and more. Use Update to get the world-transform values of the bone node for the current point in time.
Inheritance
RIBase > RIObject > RIAvatar | RICamera | RIParticle | RIProp RIObject > RILight > RISpotLight | RIPointLight | RIDirectionalLight
Examples
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
Member Functions
GetName ( self )
Get the name of the bone node in a character skeleton or scene object.
Returns
- Name of the bone node - str
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Get root bone name
8 bone_name = bone_node.GetName()
9 print(bone_name)
GetID ( self )
Get the ID of the bone node in a character skeleton or scene object.
Returns
- ID of the bone node - int
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Get root bone ID
8 bone_id = bone_node.GetID()
9 print(bone_id)
GetParent ( self )
Get the parent bone of the bone node in a character skeleton or scene object. If a parent does not exist, then return None.
See Also: GetChildren
Returns
- Parent bone node - RINode
- No parent bone node - None
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Get root bone parent bone
8 parent_bone = bone_node.GetParent()
9 print(parent_bone)
GetChildren ( self )
Get a list of child bones for a bone node in a character skeleton or scene object. If this bone node does not have child bones, then return None.
See Also: GetParent
Returns
- List of child bone nodes - RINode list
- No child bones - None
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Get root bone children bone list
8 children_bone_list = bone_node.GetChildren()
9 print(children_bone_list)
LocalTransform ( self )
Get the local-transform for a bone node in a character skeleton or scene object.
See Also: WorldTransform
Returns
- Bone node local-transform - RTransform
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Get root bone local transform
8 local_transform = bone_node.LocalTransform()
9 print(local_transform)
WorldTransform ( self )
Get the world-transform for a bone node in a character skeleton or scene object.
See Also: LocalTransform
Returns
- Bone node world-transform - RTransform
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Get root bone world transform
8 world_transform = bone_node.WorldTransform()
9 print(world_transform)
WorldToLocal ( self, kWorldMatrix )
Convert the world-transform matrix for a bone node in a character skeleton or scene object to local-transform matrix.
See Also: LocalToWorld
Parameters
- kWorldMatrix [IN] Character bone node world-transform matrix - RMatrix4
Returns
- Bone node local-transform matrix - RMatrix4
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Transfer root bone world transform matrix to local transform matrix
8 world_transform = bone_node.WorldTransform()
9 world_matrix = world_transform.Matrix()
10 world_to_local = bone.WorldToLocal(world_matrix)
11 print(world_to_local)
LocalToWorld ( self, kLocalMatrix )
Convert the local-transform matrix for a bone node in a character skeleton or scene object to world-transform matrix.
See Also: WorldToLocal
Parameters
- kLocalMatrix [IN] Character bone node local-transform matrix - RMatrix4
Returns
- Bone node world-transform matrix - RMatrix4
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Transfer root bone local transform matrix to world transform matrix
8 local_transform = bone_node.LocalTransform()
9 local_matrix = local_transform.Matrix()
10 local_to_world = bone.LocalToWorld(local_matrix)
11 print(local_to_world)
Update ( self )
Update the Transform Control for a bone node in a character skelecton or scene object and update the scene. After the Update, the Transform Control's key values will reflect the world-transform values of the bone node for the current point in time.
1 # Get root bone node
2 avatar_list = RLPy.RScene.GetAvatars()
3 avatar = avatar_list[0]
4 skeleton_component = avatar.GetSkeletonComponent()
5 bone_node = skeleton_component.GetRootBone()
6
7 # Get root bone child node world transform rotation x-axis value
8 motion_bones = skeleton_component.GetMotionBones()
9 child = motion_bones[1]
10 child_world = child.WorldTransform()
11 child_rot_x = child_world.R().x
12
13 # Set float control rotation x-axis value
14 RLPy.RGlobal.SetTime(RLPy.RTime(0))
15 animation_clip = skeleton_component.GetClip(0)
16 root_control = animation_clip.GetControl("Layer", root)
17 data_block = root_control.GetDataBlock()
18 float_control_rotate_x = data_block.GetControl("Rotation/RotationX")
19 float_control_rotate_x.SetValue(RLPy.RGlobal.GetTime(), math.radians(60))
20
21 # Update root bone with float control
22 bone_node.Update()
23
24 # Get root bone child node world transform rotation x-axis value after updated
25 new_child_world = child.WorldTransform()
26 after_update_child_rot_x = new_child_world.R().x
