What is a Pixel?

What is a Pixel?

• A. An individual vertex.
• B. A unit of texture resolution.
• C. A single point in a graphic image.
• D. A type of shader.

Answer: (C)

In raster graphics, a pixel is the smallest controllable element of an image—the single point that holds color and brightness information. When you rasterize a scene, the final image is made up of a grid of these pixels; each one stores the color value for its screen location, and together they form the complete image. A vertex, meanwhile, is a point in 3D space used to define geometry, not a display element. A unit of texture resolution would be a texel, the individual element of a texture, while a shader is a small program that computes color, lighting, and other effects during rendering. Therefore, a pixel is best described as a single point in a graphic image.

In raster graphics, a pixel is the smallest controllable element of an image—the single point that holds color and brightness information. When you rasterize a scene, the final image is made up of a grid of these pixels; each one stores the color value for its screen location, and together they form the complete image. A vertex, meanwhile, is a point in 3D space used to define geometry, not a display element. A unit of texture resolution would be a texel, the individual element of a texture, while a shader is a small program that computes color, lighting, and other effects during rendering. Therefore, a pixel is best described as a single point in a graphic image.