glTextureParameteri

glTextureParameteri is a function in the OpenGL (Open Graphics Library) API used to set a specific parameter for a texture object. It allows developers to control various aspects of how a texture is sampled and filtered. The function takes three arguments: the texture object name, the parameter to be set, and the value of that parameter.

Common parameters that can be set with glTextureParameteri include texture wrap modes and texture filter modes. Texture wrap modes, such as GL_TEXTURE_WRAP_S and GL_TEXTURE_WRAP_T, determine how texture coordinates outside the range of [0, 1] are handled. Options like GL_REPEAT, GL_CLAMP_TO_EDGE, and GL_MIRRORED_REPEAT define this behavior. Texture filter modes, specified by GL_TEXTURE_MIN_FILTER and GL_TEXTURE_MAG_FILTER, control how texels are sampled when the texture is viewed at different resolutions. GL_NEAREST and GL_LINEAR are common filtering methods for magnification and minification.

By adjusting these parameters, developers can influence the visual quality and performance of texture mapping in 3D graphics. For instance, using GL_LINEAR filtering can produce smoother results than GL_NEAREST, while GL_CLAMP_TO_EDGE can prevent visible seams when textures are near the edge of an object. The glTextureParameteri function is fundamental for fine-tuning texture behavior in OpenGL applications.