teksturkoordinatsystemet

The teksturkoordinatsystemet, often referred to as the texture coordinate system, is a fundamental concept in computer graphics used to map textures onto three-dimensional models. It essentially provides a way to specify which part of a 2D image (the texture) should be applied to which part of a 3D surface. This is achieved by assigning a pair of coordinates, typically denoted as (u, v), to each vertex of a 3D model. These (u, v) coordinates range from 0.0 to 1.0, where (0.0, 0.0) usually represents the bottom-left corner of the texture and (1.0, 1.0) represents the top-right corner.

When a texture is applied to a 3D object, the graphics hardware interpolates these (u, v) coordinates across the surface of the polygons that make up the model. This interpolation determines the precise pixel of the texture that should be displayed at each point on the 3D surface. Without a texture coordinate system, it would be impossible to control how a 2D image wraps around or adheres to a 3D shape, leading to a uniform color or a distorted application of the texture. The definition and assignment of these coordinates are crucial for achieving realistic and detailed rendering in video games, animations, and other visual applications.