Drawing port
The drawing port gathers the 3-D graphics and scene information so that it can be properly rendered on the display device (display monitor, color printer, offscreen) in picture elements or pixels. A display device has thousands of pixels, and each individual pixel contains the color information for that point in the image. The drawing port takes the scene information, 3-D attribute bundle information and 3-D graphic information, converts the 3-D points to 2-D for deisplay and computes the correct color for each pixel.
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