Question

Maya 2016 questions

1. Explain the following in terms of shape and transform nodes: (a) Grouping (b) Parenting (c) Instances 2. What is an object's pivot? How does its position affect rotation and scaling? 3. Explain the transformations for creating a mirrored copy of an object. 4. For polygon objects, what are the underlying components contained in the shape node?

Answer 1

1.

a)

In the above nodes concept,by grouping objects under one node, we can freely move, shade, apply texture, and do many other actions to all the objects by working with the group node.

To group objects together, select the objects you want to group together.

Select Edit > Group.

The objects are now grouped under a new transform node.

Using the Group Options window you can specify how the objects, as well as their pivot points, are grouped.

b)these nodes contain parenting information.These nodes controls attributes of one or more children. These nodes serve as parent nodes for its children.A parent in turn can also be the child of another parent.The child adopts some or all attribute changes made to the parent.

creation of parent

Select the children first, and the parent last. S

select Edit > Parent.

In the Outliner and Hypergraph, you can drag and drop one object on top of another to parent it.

2)The object pivot is the position about which objects are scaled and rotated while playing different types of animation. we can change and even animate the object pivot .position of pivot can be changed by rotating and scaling

3)

To mirror an object

1. Create a NURBS primitive sphere, or select another object to mirror.
2. Type -2 in the Translate X field in the Channel Box (re 4.56).
   主非柒 Chanek Object nurbs Sphere3 Translste X-2 Translate Y Translate ZO Rotate X C Rotate Y O Rotate Z 0 Scale X 1 Scale Y 1 Scale 1 sblty
   

   Figure 4.56 Type -2 in the Translate X field of the Channel Box to move the object two units in the negative x direction.

   This setting moves the object two units down the negative x axis.
3. Press $squ_w.gif$ or click the Move tool icon in the toolbar.
4. Press
   Insert /(Home
   on the keyboard to go into pivot point mode.
5. Holding down $squ_x.gif$ , move the pivot point to the origin

   Figure 4.57 Move the pivot point to the origin to send the copy an equal distance away from the origin.

   $squ_x.gif$ snaps to the grid, which ensures that the pivot point is precisely at the origin.
6. Press
   Insert /(Home
   to get out of pivot-point edit mode.

7. From the Edit menu, select the box beside Duplicate Special.

   The Duplicate Special Options window opens.

8. Select Edit > Reset Settings in the Duplicate Special Options window to reset the settings, and then set the Scale X field to –1.

9. Click Duplicate Special.

   A mirrored copy is duplicated an equal distance from the pivot point