tekstuuritietoja

Tekstuuritietoja refers to information used to define the visual surface properties of an object in computer graphics. This data is typically stored as an image, often called a texture map, which is then applied to the surface of a 3D model. These textures can represent a wide variety of visual characteristics, such as color, roughness, reflectivity, and transparency.

The process of applying a texture to a 3D model is known as texture mapping. This involves defining how the 2D texture image is projected or wrapped onto the 3D surface. UV mapping is a common technique where coordinates from the 3D model's vertices are used to correspond to points within the 2D texture image.

Tekstuuritietoja are crucial for creating realistic and visually appealing 3D scenes. Without them, surfaces would appear flat and uninteresting, lacking the detail and variation that we see in the real world. Textures allow artists to imbue models with intricate patterns, materials like wood or metal, and the subtle imperfections that add to their believability.

Beyond simple color information, advanced texture types exist. Normal maps, for example, store surface direction data, simulating fine surface detail like bumps and scratches without adding extra geometry. Specular maps control how light reflects off a surface, and displacement maps can actually alter the geometry of the model based on texture values, creating more pronounced physical details. The effective use of tekstuuritietoja is fundamental to modern 3D rendering and game development.