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Diffstat (limited to 'doc/classes/SkeletonModification3DCCDIK.xml')
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diff --git a/doc/classes/SkeletonModification3DCCDIK.xml b/doc/classes/SkeletonModification3DCCDIK.xml new file mode 100644 index 0000000000..6f5409ed4d --- /dev/null +++ b/doc/classes/SkeletonModification3DCCDIK.xml @@ -0,0 +1,136 @@ +<?xml version="1.0" encoding="UTF-8" ?> +<class name="SkeletonModification3DCCDIK" inherits="SkeletonModification3D" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd"> + <brief_description> + A modification that uses CCDIK to manipulate a series of bones to reach a target. + </brief_description> + <description> + This [SkeletonModification3D] uses an algorithm called Cyclic Coordinate Descent Inverse Kinematics, or CCDIK, to manipulate a chain of bones in a Skeleton so it reaches a defined target. + CCDIK works by rotating a set of bones, typically called a "bone chain", on a single axis. Each bone is rotated to face the target from the tip (by default), which over a chain of bones allow it to rotate properly to reach the target. Because the bones only rotate on a single axis, CCDIK [i]can[/i] look more robotic than other IK solvers. + [b]Note:[/b] The CCDIK modifier has [code]ccdik_joints[/code], which are the data objects that hold the data for each joint in the CCDIK chain. This is different from a bone! CCDIK joints hold the data needed for each bone in the bone chain used by CCDIK. + CCDIK also fully supports angle constraints, allowing for more control over how a solution is met. + </description> + <tutorials> + </tutorials> + <methods> + <method name="get_ccdik_joint_bone_index" qualifiers="const"> + <return type="int" /> + <argument index="0" name="joint_idx" type="int" /> + <description> + Returns the bone index of the bone assigned to the CCDIK joint at [code]joint_idx[/code]. + </description> + </method> + <method name="get_ccdik_joint_bone_name" qualifiers="const"> + <return type="String" /> + <argument index="0" name="joint_idx" type="int" /> + <description> + Returns the name of the bone that is assigned to the CCDIK joint at [code]joint_idx[/code]. + </description> + </method> + <method name="get_ccdik_joint_ccdik_axis" qualifiers="const"> + <return type="int" /> + <argument index="0" name="joint_idx" type="int" /> + <description> + Returns the integer representing the joint axis of the CCDIK joint at [code]joint_idx[/code]. + </description> + </method> + <method name="get_ccdik_joint_constraint_angle_max" qualifiers="const"> + <return type="float" /> + <argument index="0" name="joint_idx" type="int" /> + <description> + Returns the maximum angle constraint for the joint at [code]joint_idx[/code]. [b]Note:[/b] This angle is in degrees! + </description> + </method> + <method name="get_ccdik_joint_constraint_angle_min" qualifiers="const"> + <return type="float" /> + <argument index="0" name="joint_idx" type="int" /> + <description> + Returns the minimum angle constraint for the joint at [code]joint_idx[/code]. [b]Note:[/b] This angle is in degrees! + </description> + </method> + <method name="get_ccdik_joint_constraint_invert" qualifiers="const"> + <return type="bool" /> + <argument index="0" name="joint_idx" type="int" /> + <description> + Returns whether the CCDIK joint at [code]joint_idx[/code] uses an inverted joint constraint. See [method set_ccdik_joint_constraint_invert] for details. + </description> + </method> + <method name="get_ccdik_joint_enable_joint_constraint" qualifiers="const"> + <return type="bool" /> + <argument index="0" name="joint_idx" type="int" /> + <description> + Enables angle constraints to the CCDIK joint at [code]joint_idx[/code]. + </description> + </method> + <method name="set_ccdik_joint_bone_index"> + <return type="void" /> + <argument index="0" name="joint_idx" type="int" /> + <argument index="1" name="bone_index" type="int" /> + <description> + Sets the bone index, [code]bone_index[/code], of the CCDIK joint at [code]joint_idx[/code]. When possible, this will also update the [code]bone_name[/code] of the CCDIK joint based on data provided by the linked skeleton. + </description> + </method> + <method name="set_ccdik_joint_bone_name"> + <return type="void" /> + <argument index="0" name="joint_idx" type="int" /> + <argument index="1" name="bone_name" type="String" /> + <description> + Sets the bone name, [code]bone_name[/code], of the CCDIK joint at [code]joint_idx[/code]. When possible, this will also update the [code]bone_index[/code] of the CCDIK joint based on data provided by the linked skeleton. + </description> + </method> + <method name="set_ccdik_joint_ccdik_axis"> + <return type="void" /> + <argument index="0" name="joint_idx" type="int" /> + <argument index="1" name="axis" type="int" /> + <description> + Sets the joint axis of the CCDIK joint at [code]joint_idx[/code] to the passed-in joint axis, [code]axis[/code]. + </description> + </method> + <method name="set_ccdik_joint_constraint_angle_max"> + <return type="void" /> + <argument index="0" name="joint_idx" type="int" /> + <argument index="1" name="max_angle" type="float" /> + <description> + Sets the maximum angle constraint for the joint at [code]joint_idx[/code]. [b]Note:[/b] This angle must be in radians! + </description> + </method> + <method name="set_ccdik_joint_constraint_angle_min"> + <return type="void" /> + <argument index="0" name="joint_idx" type="int" /> + <argument index="1" name="min_angle" type="float" /> + <description> + Sets the minimum angle constraint for the joint at [code]joint_idx[/code]. [b]Note:[/b] This angle must be in radians! + </description> + </method> + <method name="set_ccdik_joint_constraint_invert"> + <return type="void" /> + <argument index="0" name="joint_idx" type="int" /> + <argument index="1" name="invert" type="bool" /> + <description> + Sets whether the CCDIK joint at [code]joint_idx[/code] uses an inverted joint constraint. + An inverted joint constraint only constraints the CCDIK joint to the angles [i]outside of[/i] the inputted minimum and maximum angles. For this reason, it is referred to as an inverted joint constraint, as it constraints the joint to the outside of the inputted values. + </description> + </method> + <method name="set_ccdik_joint_enable_joint_constraint"> + <return type="void" /> + <argument index="0" name="joint_idx" type="int" /> + <argument index="1" name="enable" type="bool" /> + <description> + Sets whether joint constraints are enabled for the CCDIK joint at [code]joint_idx[/code]. + </description> + </method> + </methods> + <members> + <member name="ccdik_data_chain_length" type="int" setter="set_ccdik_data_chain_length" getter="get_ccdik_data_chain_length" default="0"> + The amount of CCDIK joints in the CCDIK modification. + </member> + <member name="high_quality_solve" type="bool" setter="set_use_high_quality_solve" getter="get_use_high_quality_solve" default="true"> + When true, the CCDIK algorithm will perform a higher quality solve that returns more natural results. A high quality solve requires more computation power to solve though, and therefore can be disabled to save performance. + </member> + <member name="target_nodepath" type="NodePath" setter="set_target_node" getter="get_target_node" default="NodePath("")"> + The NodePath to the node that is the target for the CCDIK modification. This node is what the CCDIK chain will attempt to rotate the bone chain to. + </member> + <member name="tip_nodepath" type="NodePath" setter="set_tip_node" getter="get_tip_node" default="NodePath("")"> + The end position of the CCDIK chain. Typically, this should be a child of a [BoneAttachment3D] node attached to the final bone in the CCDIK chain, where the child node is offset so it is at the end of the final bone. + </member> + </members> +</class> |