In digital signal processing, spatial anti-aliasing is the technique of minimizing the distortion artifacts known as aliasing when representing a high-resolution image at a lower resolution. Anti-aliasing is used in digital photography, computer graphics, digital audio, and many other applications.
used to set mood, control the appearance of objects and re-create atmospheric conditions, such as fog, daybreak and night. Lighting effects are also responsible for surface reflections and shadows.
In the field of computer graphics, a shader is a computer program that is used to do shading - the production of appropriate levels of light and color within an image
the theory and development of computer systems able to perform tasks normally requiring human intelligence, such as visual perception, speech recognition, decision-making, and translation between languages.