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Inverse kinematics IK is a way of animating objects using bones chained into linear or branched armatures in parent-child relationships. When one bone moves, connected bones move in relation to it.
Inverse kinematics lets you easily create natural motion. To animate using inverse kinematics, you simply specify the start and end positions of bones on the Timeline. Animate automatically interpolates the positions of the bones in the armature between the starting and ending нажмите для деталей. By using a shape as a container for multiple bones. For example, you can add bones to a drawing of a snake so that it slithers realistically.
You can draw these shapes in Object Drawing mode. By chaining symbol instances. For example, you can link movie clips showing a torso, arm, lower arm, and hand so that they move realistically in relation to each other. Each instance has only one adobe flash professional cc bone tool free. To set the Bone Style, select the IK span in the Timeline and then select the style from the Style menu in the Options section of the Properties panel. Note : If you save a document with the Bone Style set to None, Animate automatically changes bone style to Line the next time you open the document.
When you add bones to symbol instances or shapes, Animate creates a new layer for them in the Timeline. This new layer is called the pose layer. Animate adds the pose layer to the Timeline between existing layers to maintain the previous stacking adobe audition cc remove echo free download of objects on the Stage.
You can add IK bones to movie clip, graphic, and button instances. To use text, convert it to a symbol first. The symbol instances can be on different layers before you add bones. Animate adds them to the pose layer. As you chain objects, consider на этой странице parent-child relationships you want to create, for example, from shoulder to elbow to wrist.
Create symbol instances on the Stage. To save time later, arrange the instances so that they approximate spatial configuration you want. Click the symbol instance that you want to set as the root bone of the armature. Click at the point where you want to attach the bone to the symbol.
By default, Animate creates the bone at the location adobe flash professional cc bone tool free mouse click. With Auto Set Transformation Point turned off, the bone will snap to the symbol transformation point when you click from one symbol to the next. Drag to another symbol instance and release the mouse button at the point where you want to attach it. To add another bone to the armature, drag from the tail of the first bone to the next symbol instance.
To create a branched armature, click the head of an existing bone where you want the branch to begin. Then drag to create the first bone of the new branch. To reposition the elements of the completed armature, drag either the bones or the instances themselves. After you create an armature, you can still add new instances adobe flash professional cc bone tool free different layers to the armature. Drag a new bone to the new instance and Animate moves the instance to the adobe flash professional cc bone tool free layer adobe flash professional cc bone tool free the armature.
You add bones to a single shape or to a group of shapes that are on the same layer. In either case, you must select all the shapes before adding the first bone. After you add bones, Animate converts adobe flash professional cc bone tool free the shapes and bones into an IK shape object and moves the object to a new pose layer. The shape can contain multiple colors and strokes. Edit the shapes so they are as close to their final form as possible.
Once you add bones to a shape, the options for editing the shape become more limited. If the shape windows 10 home upgrade auf pro kaufen free download too complex, Animate will prompt adobe flash professional cc bone tool free to convert it to a movie clip before adding bones. If the adobe flash professional cc bone tool free contains multiple color areas or strokes, drag a selection rectangle around the shape to ensure that the entire shape is selected.
To add another bone, drag from the tail of the first bone to another location in within the shape. The second bone привожу ссылку a child of the root bone. Link areas of the shape with bones in the order of the parent-child relationships you want to create. For example, link from shoulder to elbow to wrist.
To move the armature, select the IK shape object with the Selection tool and then drag any of the bones to move them. On-stage controls allow you to easily make rotation and translation adjustments on the stage with the help of guides that show the rotation range and precise control. The on-state controls also allow you to continue working on the stage without having to go back to the property inspector to adjust rotation.
Note : When you edit the rotation that you have already defined, you can increase or decrease the borders by clicking on the line and dragging. Before editing, delete any additional poses after the first frame of the armature in the Timeline. If you are simply repositioning an adobe flash professional cc bone tool free for animation purposes, you can change positions in any frame of the pose layer.
Animate converts the frame to a pose frame. Note : The Subselection tool does not work if there are multiple poses in the IK span. You can add, delete, and edit control points of the contours in an IK shape using the Subselection tool. By default, the control points of a shape are connected to the bone that is nearest to them.
You can use the Bind tool to edit the connections between individual bones and the shape control points. In this way you can control how the stroke distorts when each bone moves for better results. This technique is useful when the stroke of a shape does not distort as you want when the armature moves.
The connected points are highlighted in yellow while the selected bone is highlighted in red. Control points connected to only one bone appear as squares. Control points connected to more than one bone appear as triangles. To remove control points from the bone, Ctrl-click Windows or Option-click Macintosh a control point that is highlighted in yellow.
You can also Ctrl-drag Windows or Option-drag Macintosh to remove multiple control points from the selected bone. The connected bones are highlighted in yellow while the selected control point is highlighted in red. To remove a bone from a selected control point, Ctrl-click Windows or Option-click Macintosh a bone that is highlighted in yellow. To create more realistic motion of IK armatures, you can control the freedom of motion adobe flash professional cc bone tool free specific bones.
For example, you can constrain two bones of adobe flash professional cc bone tool free arm so that the elbow cannot bend in the wrong direction. By default, each IK bone is assigned a fixed length when the bone is created. Bones can rotate around their parent joint and along the x- and y-axis.
However, they adobe flash professional cc bone tool free move in ways that require the length of their parent bone to change unless you enable x- or y-axis motion. By default, bone rotation is enabled and x- and y-axis motion is disabled. In armatures with strings of connected bones, you cannot contrain the motion of the last joint in any branch of the armature.
To give the appearance of contraint of the last joint, use bones with movie clips and connect the last bone to a movie clip that has its alpha property set to zero. Then constrain the next-to-last bone instead of the last one. For an arm, you could constrain the degrees of rotation of the elbow so that it cannot rotate beyond the normal range of motion of a forearm.
To enable a character to move across the Stage, turn on X or Y translation on the root bone. Turn off rotation when using X and Y translation for more accurate movement.
To enable a selected bone to move along the x- or y- axis and change the length of its parent bone, select Enable in the Joint: X Translation or Joint: Y Translation section of the Property inspector. A two-headed arrow appears perpendicular to the bone on the joint to indicate that x-axis motion is enabled. A two-headed arrow appears parallel to the bone on the joint to indicate that y-axis motion is enabled. Enabling both x and y translation for a bone simplifyies the task of positioning the bone when rotation is disabled for the bone.
To limit the amount of motion enabled along the x- or y-axis, select Constrain in the Joint: X Translation or Joint: Y Translation section of the Property inspector and enter a value for the minimum and maximum distance the bone can move.
To disable rotation of the selected bone around the joint, deselect the Enable checkbox in the Joint: Rotation section of the Property inspector. To constrain rotation of a bone, enter minimum and maximum degrees of rotation in the Joint: Rotation section of the Property inspector. The degrees of rotation are relative to the parent bone. An arc appears on top of the bone joint indicating the degrees of freedom of rotation.
To make a selected bone stationary relative to its parent bone, disable rotation and x- and y-axis translation. To limit the speed of motion of a selected bone, enter a value in the Joint Speed field in the Property inspector.
Joint speed gives the bone the effect of weight. Two bone properties can be used to add springiness to IK bones. These properties allow easier creation of physics-enhanced animation. The Strength and Смотрите подробнее properties give bone animation life-like movement that is highly configurable.
It is best to set these properties before adding poses to a pose layer. Strength : The stiffness of the spring. Higher values create a stiffer spring effect. Damping : The rate of decay of the spring effect.
Higher values cause the springiness to diminish more quickly. A value of 0 causes the springiness to remain at its full strength throughout the frames of the pose layer.
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