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Cách dễ nhất để sử dụng người giải quyết IK là chọn SplineIKSolver từ danh sách thả xuống trong việc triển khai Phân IK chuỗi trong khi bạn đang tạo cấu trúc xương. Sau khi cấu trúc xương hoàn tất, Spline IK hộp thoại Solver xuất hiện. Với hộp thoại này, bạn có thể chọn một tên cho chuỗi IK, xác định loại đường cong, và thiết lập số lượng hải lý spline. | Working with Inverse Kinematics 41 The easiest way to use this IK solver is to select SplinelKSolver from the drop-down list in the IK Chain Assignment rollout while you re creating the bone structure. After the bone structure is complete the Spline IK Solver dialog box appears. With this dialog box you can select a name for the IK chain specify the curve type and set the number of spline knots. The curve type options include Bézier NURBS Point and NURBS CV. You can also select to Create Helpers and to display several different options. Another way to use this IK solver is with an existing bone structure. To do this you need a spline curve in the scene that matches how you want the bone chain to look. Then select the first bone where you want the solver to be applied and choose Animation o IK Solvers o Spline IK. In the viewports a dragging line appears move the line to the last bone that you want to include and then drag a second time to the spline that you want to use. The bone structure then assumes the shape of the spline curve. A helper object is positioned at the location of each curve vertex. These helper objects let you refine the shape of the curve. Tutorial Building an IK Spline alligator The IK Spline solver is perfect for creating long winding objects like snakes or an alligator s tail. For this example you ll take an existing bone structure and using the Spline IK solver make it match a spline. To create a bone structure for an alligator that follows a spline using the IK Spline solver follow these steps 1. Open the Alligator spline IK.max file from the Chap 41 directory on the DVD. This file includes an alligator model created by Viewpoint Datalabs a simple bone chain the Skin modifier and a spline. If you re having trouble seeing the bones located inside the alligator you can enable the See I J P Through option in the Object Properties dialog box or press the Alt X keyboard shortcut. 2. With the first bone in the tail chain selected choose Animation
