Duplicating an existing object is a useful way to make an exact copy of it
without having to start over. When you duplicate an item the copy takes on
the characteristics of the original. Using the Duplicate Tool you can
additionally apply transformations to the copy move, rotate, scale.
Camera tools
In Maya, you view the scene through a set of virtual cameras. These cameras are either orthographic or perspective in nature. You can adjust how these cameras view the scene using the Camera Tools.
The three primary methods for manipulating the camera view are dolly, tumble, and track.
Polygonal Modeling
Polygon surfaces are a network of three-or-more sided flat surfaces called faces that get connected together to create a poly mesh.
Polygon meshes have vertices, faces, and edges.
The wireframe lines on the mesh represent the edges of each face. The regions
bounded by the edges are faces. Where the edges intersect each other is the
location of a point called a vertex.
When a polygon mesh is rendered, its edges can be set to appear hard or
smooth. As a result, polygons can easily represent both flat as well as curved
Using 2D reference images
You can use front, side, and top views from drawings, sketches, or photographs
to help visualize your 3D model in Maya, much like an architect or engineer
creates their designs from the plan and elevation views of a blueprint.
You can import 2D images into your orthographic camera views as image
planes. An image plane is a 2D object (plane) that places an image file in the
scene view. By default, an image plane only appears in the camera to which
the image plane is connected. Image planes are also used to create backgrounds
and environments when rendering.
To smooth and subdivide the cube primitive
With the cube still selected in the scene view, select Mesh > Smooth >
and set the following options in the window that appears:
Click the Smooth button The cube primitive is smoothed and is rounded at its corners. The cube
has also been subdivided into smaller faces.
The polygon faces are still four-sided even though their shape and position have been modified by the smooth operation.
Modeling a polygon mesh in shaded mode gives you a better sense of the 3D volume that the model occupies as well as how any
surface details appear.
You can control the shading of an object separately in each view.
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