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GLUNIFORMBLOCKBINDIN(3G)                         OpenGL 3.3                         GLUNIFORMBLOCKBINDIN(3G)



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 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 (C) 2010 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/.



OpenGL 3.3                                       03/08/2011                         GLUNIFORMBLOCKBINDIN(3G)