glDeleteSamplersGLsizei

glDeleteSamplers is an OpenGL function used to delete one or more sampler objects. Sampler objects encapsulate all the state for texture sampling, such as filtering modes and wrap modes, and are separate from texture objects themselves. When a sampler object is deleted, its name is freed, and it becomes available for reuse.

The function takes two arguments: count, which is the number of sampler objects to delete, and samplers, which is a pointer to an array of sampler object names. The sampler names are typically generated using glGenSamplers.

It is important to note that you cannot delete a sampler object if it is currently bound to a sampler unit. If you attempt to delete a bound sampler, the behavior is undefined. Therefore, it is recommended to unbind any samplers before deleting them. For instance, you can call glBindSampler with a sampler ID of zero for the desired sampler unit to unbind it.

Deleting sampler objects is crucial for managing OpenGL resources efficiently. Unused sampler objects consume memory and GPU resources. By deleting them when they are no longer needed, you can prevent memory leaks and improve the overall performance of your OpenGL application. This function is part of the core OpenGL API and is available across various platforms and versions of OpenGL.