NAME

       glUniformBlockBinding - assign a binding point to an active uniform block

C SPECIFICATION

       void glUniformBlockBinding(GLuint program, GLuint uniformBlockIndex,
                                  GLuint uniformBlockBinding);

PARAMETERS

       program
           The name of a program object containing the active uniform block whose binding to
           assign.

       uniformBlockIndex
           The index of the active uniform block within program whose binding to assign.

       uniformBlockBinding
           Specifies the binding point to which to bind the uniform block with index
           uniformBlockIndex within program.

DESCRIPTION

       Binding points for active uniform blocks are assigned using glUniformBlockBinding. Each of
       a program's active uniform blocks has a corresponding uniform buffer binding point.
       program is the name of a program object for which the command glLinkProgram() has been
       issued in the past.

       If successful, glUniformBlockBinding specifies that program will use the data store of the
       buffer object bound to the binding point uniformBlockBinding to extract the values of the
       uniforms in the uniform block identified by uniformBlockIndex.

       When a program object is linked or re-linked, the uniform buffer object binding point
       assigned to each of its active uniform blocks is reset to zero.

ERRORS

       GL_INVALID_VALUE is generated if uniformBlockIndex is not an active uniform block index of
       program.

       GL_INVALID_VALUE is generated if uniformBlockBinding is greater than or equal to the value
       of GL_MAX_UNIFORM_BUFFER_BINDINGS.

       GL_INVALID_VALUE is generated if program is not the name of a program object generated by
       the GL.

NOTES

       glUniformBlockBinding is available only if the GL version is 3.1 or greater.

ASSOCIATED GETS

       glGetActiveUniformBlock() with argument GL_UNIFORM_BLOCK_BINDING

SEE ALSO

       glLinkProgram(), glBindBufferBase(), glBindBufferRange(), glGetActiveUniformBlock()

COPYRIGHT

       Copyright © 2010-2013 Khronos Group. This material may be distributed subject to the terms
       and conditions set forth in the Open Publication License, v 1.0, 8 June 1999.
       http://opencontent.org/openpub/.

AUTHORS

       opengl.org