Computer Graphics Questions Medium
In computer graphics, there are several types of transformations used to manipulate and modify objects or images. These transformations are essential for creating realistic and visually appealing graphics. The different types of transformations used in computer graphics are:
1. Translation: Translation involves moving an object or image from one position to another along the x, y, and z axes. It is performed by adding or subtracting specific values to the coordinates of the object.
2. Rotation: Rotation involves rotating an object or image around a specific point or axis. It can be performed in 2D or 3D space and is achieved by changing the angles or coordinates of the object.
3. Scaling: Scaling involves changing the size of an object or image. It can be performed uniformly or non-uniformly, resulting in either enlarging or shrinking the object along the x, y, and z axes.
4. Shearing: Shearing involves skewing an object or image along a particular axis. It is achieved by modifying the coordinates of the object in a specific direction.
5. Reflection: Reflection involves creating a mirror image of an object or image. It can be performed along any axis, such as the x-axis, y-axis, or any arbitrary axis.
6. Projection: Projection involves mapping a 3D object onto a 2D plane. It is used to create a realistic representation of a 3D object on a 2D screen.
7. Affine transformation: Affine transformations are a combination of translation, rotation, scaling, and shearing. They preserve parallel lines and ratios of distances between points.
These transformations are fundamental in computer graphics as they allow for the manipulation, positioning, and rendering of objects or images in a virtual environment. They are widely used in various applications such as video games, animation, virtual reality, and computer-aided design (CAD).