GLINVALIDATEBUFFERSU(3G)

    .SH "NAME" glInvalidateBufferSubData - invalidate a region of a buffer object's data store
    .SH "C SPECIFICATION"

            .HP u void glInvalidateBufferSubData(GLuint buffer, GLintptr offset, GLsizeiptr length);

    .SH "PARAMETERS"

        .PP buffer

                    The name of a buffer object, a subrange of whose data store to invalidate.

            .RE
            .PP offset

                        The offset within the buffer's data store of the start of the range to be invalidated.

                .RE
                .PP length

                            The length of the range within the buffer's data store to be invalidated.

                    .RE

                .SH "DESCRIPTION"
                    .PP glInvalidateBufferSubData invalidates all or part of the content of the data store of a buffer object. After invalidation, the content of the specified range of the buffer's data store becomes undefined. The start of the range is given by offset and its size is given by length, both measured in basic machine units.

                .SH "ERRORS"
                    .PP GL_INVALID_VALUE is generated if offset or length is negative, or if offset + length is greater than the value of GL_BUFFER_SIZE for buffer.
                    .PP GL_INVALID_VALUE is generated if buffer is not the name of an existing buffer object.
                    .PP GL_INVALID_OPERATION is generated if any part of buffer is currently mapped.

                .SH "ASSOCIATED GETS"
                    .PP glGetBufferParameter() with argument GL_BUFFER_SIZE

                .SH "VERSION SUPPORT"
                    .TS allbox tab(:); l l l l l l l l l l l l l. T{ glInvalidateBufferSubData T}:T{ T}:T{ T}:T{ T}:T{ T}:T{ T}:T{ T}:T{ T}:T{ T}:T{ T}:T{ T}:T{ T}:T{ T}

                .SH "SEE ALSO"
                    .PP glInvalidateTexSubImage(),, glInvalidateTexImage(), glInvalidateBufferData(), glInvalidateFramebuffer(), glInvalidateSubFramebuffer().

                .SH "COPYRIGHT"
                    .PP Copyright © 2013-2014 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/.

COPYRIGHT
Copyright © 2013-2014 Khronos Group