Bind a named sampler to a texturing target.
||-||Specifies the index of the texture unit to which the sampler is bound.|
||-||Specifies the name of a sampler.|
sampler to the texture unit at index
sampler must be zero or the name of a sampler object previously returned from a call to glGenSamplers .
unit must be less than the value of
When a sampler object is bound to a texture unit, its state supersedes that of the texture object bound to that texture unit. If the sampler name zero is bound to a texture unit, the currently bound texture's sampler state becomes active. A single sampler object may be bound to multiple texture units simultaneously.
glBindSampler is available only if the GL version is 3.3 or higher.
GL_INVALID_VALUE is generated if
unit is greater than or equal to the value of
glGet with argument
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