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Unit 7: 2-D Viewing
Figure 7.6 depicts an image that has been redrawn in different viewports in 2-D plane.
Figure 7.6 : Image Drawn Several Times on Different
Viewports
7.3 Graphic Pipeline
A graphic pipeline is defined as a series of stages which helps a user to create a digital image of a
model.
A graphical pipeline comprises the following stages:
1. A bus interface or front end interface is the interface which helps in sending and receiving data.
2. A vertex processing is the process which converts each vertex to a two-dimensional screen
positioning.
3. A clipping is a process which helps in removing parts of the image that need not be visible on the
screen.
4. A primitive assembly is a stage used to set up vertices that are collected and converted into
triangles.
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