NAME

       glInvalidateBufferSubData - invalidate a region of a buffer object's data store

C SPECIFICATION

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

PARAMETERS

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

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

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

DESCRIPTION

       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.

ERRORS

       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.

       GL_INVALID_VALUE is generated if buffer is not the name of an existing buffer object.

       GL_INVALID_OPERATION is generated if any part of buffer is currently mapped.

ASSOCIATED GETS

       glGetBufferParameter() with argument GL_BUFFER_SIZE

SEE ALSO

       glInvalidateTexSubImage(),, glInvalidateTexImage(), glInvalidateBufferData(),
       glInvalidateFramebuffer(), glInvalidateSubFramebuffer().

COPYRIGHT

       Copyright © 2012 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