三维动画设计应用
Maya
河南理工大学 计算机学院
徐文鹏
wpxu08@gmail.com
开始-图像平面
•
•
•
•
•
View>Image Plane>Import Image
调整位置：选择摄像机，通道栏>Input输入
Image Plane属性>Looking through camera
图像平面加入层以方便隐藏
选择摄像机，在层名上右击，菜单中选Add
Selected Object
• 注意：在导入前不要移动、平移或缩放任意视图！
• 如何不丢失参考图像？
2
跟踪轮廓-NURBS CV
• CVs (control vertices) control how the curve is
“pulled” from a straight line between edit points
• Maya draws CVs differently to let you tell the
difference between the start and the end of a curve
• The first CV is drawn as a box
• The second CV is drawn as a small “U”, to show the
increasing U dimension from the start point
• All other CVs are drawn as small dots
3
跟踪轮廓-操作注意
•
•
•
•
三点重合产生斧子曲线锐角
如何确保三点重合？
Open/Close Curve命令
关闭图像平面：可以通过层控制参考图像的可见性
4
创建刀刃-Edit point编辑点
• Edit points mark the connection point between two
spans
• Maya draws edit points as small Xs
• edit points are not usually used for editing curves
• CVs control the shape of a NURBS curve, and edit
points are just indicators of how many spans a curve
has
• It is possible to move edit points to change the shape of
a curve, but you should avoid doing this except for
minor adjustments
5
创建刀刃-Span分段
• Longer and more complex curves require more than a
single span curve
• As you draw what appears to be a single long curve, the
application is actually adding several curve spans
together
• If you want more control in a curve, you can insert an
edit point to increase the number of spans in the curve
and give you more CVs to work with- Insert Knot
• You can also delete edit points to decrease the number
of spans in a curve (and probably change the shape of
the curve)- Del
6
创建刀刃-Loft
• Loft action to create a surface between a series of
cross-section or “profile” curves
• The profile curves can be normal 3D curves, surface
isoparms or edges, trim edges, or curves-on-surface
• Pick the profile curves in order
• Select Surfaces > Loft
7
创建手柄- Revolve
• Draw a curve representing the cross-section (or
“profile”) of the surface you want to create
• Select the curve and choose Surfaces > Revolve >□
• Choose the initial axis around which to sweep the
surface
• Show Manipulator tool to manipulate the surface
8