glBindSampler.3G man page
glBindSampler — bind a named sampler to a texturing target
void glBindSampler(GLuint unit, GLuint sampler);
Specifies the index of the texture unit to which the sampler is bound.
Specifies the name of a sampler.
glBindSampler binds sampler to the texture unit at index unit. 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 GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS.
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 GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS.
GL_INVALID_OPERATION is generated if sampler is not zero or a name previously returned from a call to glGenSamplers(), or if such a name has been deleted by a call to glDeleteSamplers().
glGet() with argument GL_SAMPLER_BINDING
|Function / Feature Name||2.0||2.1||3.0||3.1||3.2||3.3||4.0||4.1||4.2||4.3||4.4||4.5|
glGenSamplers(), glDeleteSamplers(), glGet(), glSamplerParameter(), glGetSamplerParameter(), glGenTextures(), glBindTexture(), glDeleteTextures()
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Copyright © 2010-2014 Khronos Group