GLTEXTUREHEIGHT
GLTEXTUREHEIGHT is a constant or variable used in graphics programming, often within OpenGL or related contexts, to represent the height of a texture. Textures are two-dimensional images applied to surfaces in 3D graphics to add detail, color, and visual effects. The height of a texture determines how many pixels are stacked vertically within that image. This value is crucial for various texture operations, including sampling, scaling, and applying filters. When rendering graphics, the graphics processing unit (GPU) needs to know the dimensions of a texture to correctly map its pixels onto the 3D model's surfaces. Therefore, GLTEXTUREHEIGHT provides this essential dimension. It is typically an integer value. In some systems, GLTEXTUREHEIGHT might be a predefined constant, while in others, it could be a variable that holds the dynamically determined height of a currently bound or loaded texture. Understanding and correctly utilizing GLTEXTUREHEIGHT is fundamental for accurate texture mapping and rendering in graphics applications.