Computer Graphics
Introduction
Computer graphics is the field of visual computing, where one utilizes computers both to generate visual images synthetically and to integrate or alter visual and spatial information sampled from the real world. This field can be categorized into several areas: Raster, Vector, 3D, and animated graphics.
Raster Graphics
Raster graphics, also known as bitmap graphics, is a type of digital image that uses tiny rectangular pixels, or picture elements, arranged in a grid formation to represent an image. Each pixel is individually defined, with its own specific color and location. Raster graphics are resolution dependent, meaning they cannot be scaled up or down without losing quality. This is due to the finite number of pixels used to represent the image.
Vector Graphics
In contrast to raster graphics, Vector graphics are not resolution-dependent. They are composed of paths, which are defined by a start and end point, along with other points, curves, and angles along the way. A path can be a line, a square, a triangle, or a curvy shape. These paths can be used to create simple drawings or complex diagrams. Paths are even used to define the characters of specific types of fonts.
3D Graphics
3D graphics techniques and technologies are used to create a three-dimensional representation of geometric data that is stored in the computer for the purposes of performing calculations and rendering 2D images. 3D graphics are a core part of many industries including games, film, television, medical imaging, and more.
Animation
Animation in computer graphics is the process of creating the illusion of motion by creating a sequence of images, or frames, with each image showing the next stage in the sequence. This can be done by using a variety of techniques such as keyframing, inverse kinematics, and motion capture.
Applications of Computer Graphics
Computer graphics have a wide range of applications including digital painting, animation, visual effects, 3D modeling, games, and virtual reality. These applications are used in a variety of industries such as film, television, video games, advertising, and more.
History of Computer Graphics
The history of computer graphics dates back to the 1950s with the development of the first digital computers. Early pioneers in the field include William Fetter, Ivan Sutherland, and Edwin Catmull.
Future of Computer Graphics
The future of computer graphics is likely to be influenced by advances in technology, such as the development of more powerful graphics processing units (GPUs), advances in machine learning and artificial intelligence, and the increasing use of virtual and augmented reality technologies.
