I made a animation of a arm bending by using a plugin called DUIK. I made an animation where the arm and the hand reach for a box and picks it up and takes the box nearer in to the arm. The plugin uses a controller to move the whole arm while still making the joints they are bending like how a real life human bend his arms.

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I made the arm with After Effects basic shapes with a  light blue colour. I made three of the blue round corners rectangles. One for the Arm, Forearm and the Hand.I created a controller for the arm and hand by going to the DUIK plugin menu and selecting the controller option then created.

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You can always set the size, colour and the controller to do different animation. The animation options are on the left:

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These options are rotational, X axis movement, Y axis movement and rescale. We are going to use all expect rescale.

When  I made the controller, I put  the controller where the hand joint to the forearm is.

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Now select the components in this order: Hand,Forearm, Arm and Controller. Then go to Auto-Rig then to Front Leg / Arm.

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A window should pop up. Make sure that 4 = Arm, 3 = Forearm and 2 = Hand. Then hit ok.

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Your arm rig should now be connected and all can moved which is meant to recreate an arm animation from moving the controller.

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Before we start adding keyframes I will be using a tool called shy guy which makes layers disappear but they are still active.

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To enable shy guy and to enable layers to still shy when shy guy is on us by clicking the box:

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The line with a semi circle mean when shy guy is on it will disappear while the other icon mean it will appear when shy guy is on. I will turn on the the controller and background layer on. To turn on shy guy just click this icon at the top of the keyframe menu.

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Now at the bottom side bar we can start to add keyframes by moving and rotating the C_Hand which is the controller. I also used easy ease to make the animated movement more organic and more natural movement.

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I made another grey rectangle shape so the arm can interact with it. The arm will be interacting with a rectangle which it will be picked up. I will animate the arm to go forward and reach for the rectangle and then the arm will take it back nearer to the left.

When I finished with the animations I exported out of After Effects into a .mov file type.

 

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