{"id":511,"date":"2015-10-13T08:28:20","date_gmt":"2015-10-13T08:28:20","guid":{"rendered":"http:\/\/avastar.online\/?page_id=511"},"modified":"2015-10-13T08:28:20","modified_gmt":"2015-10-13T08:28:20","slug":"ik-controls","status":"publish","type":"page","link":"https:\/\/avalab.org\/avastar\/legacy\/help\/ik-controls\/","title":{"rendered":"IK Controls"},"content":{"rendered":"
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IK Controls<\/h3>\n
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The IK Controls panel (Inverse Kinematics) can be found in the Properties Sidebar of the 3D Viewport (if the sidebar is hidden: ensure the mouse is in the 3D Viewport, then hit the N key to toggle the sidebar visibility). The panel displays different sets of properties depending on what bones are currently selected and visible.<\/div>\n
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\"IK_controls_01\"<\/a>

The IK Bones for the arm are visible and enabled.<\/p><\/div>\n<\/div>\n<\/div>\n

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However, you can force the Panel to always show all controls<\/span> <\/em>regardless which bones are selected by checking the tick box at the top of the panel (see image).[break]\nYou can unhide (display) the yellow IK Control bones by clicking on the Buttons IK Arms<\/span><\/em> and IK Legs<\/span><\/em>. And you can activate the IK Control Bones by ticking on the empty square right to the Buttons (See image)<\/div>\n
Note:<\/span><\/strong> When you see a green tick right to a button (see image above), then the corresponding IK bones are enabled. However Avastar displays the corresponding bone properties only when you have also selected the IK Bones in the Viewport.<\/div>\n<\/div>\n

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Chain Controls (Targetless IK)
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The Chain controls are only available for the (green) control bones except: the EyeTarget, The COG Bone and the Origin.[break]\n

The Avastar bones are organized in parent\/child chains. These chains are used for targetless IK. That is when you grab one bone along a chain, all bones of the chain follow along the movement of the active bone. For example when you move a wrist or an ankle, the entire arm\/leg will be repositioned in a meaningful way.<\/p>\n<\/div>\n

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\"IK_controls_02\"<\/a>

The Chain Control is only shown when the active and selected bone is a green control Bone.<\/p><\/div>\n<\/div>\n<\/div>\n

Once you understand how these controls work you will find that positioning a character becomes very fast and easy.<\/p>\n

The Chain ends<\/span><\/h4>\n
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In the top row of the Chain controls subpanel you see the Chain end points for the active (selected)bone. The left entry is the chain start bone, which is always the active Bone. The right entry is the end of the kinematic chain. [break]\nBelow the Chain display you find 5 control Buttons which allow you to quickly modify the end of the Chain:<\/div>\n
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\"IK_controls_03\"<\/a><\/p>\n<\/div>\n<\/div>\n

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Parent<\/span><\/h4>\n

The chain begins at the current bone and ends at the Bone’s parent. This is the smallest possible IK Chain (contains only one bone).<\/p>\n

COG (Center Of Gravity)<\/span><\/h4>\n

All kinematic chains end at the COG Bone, So the COG Bone will always be the most distant bone that you can choose.<\/p>\n<\/div>\n

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Limb<\/span><\/h4>\n

The chain start at the current bone and ends at the last limb bone. These are:<\/p>\n