glInvalidateBufferSubData : PyOpenGL 3.1.4 GL Man Pages

invalidate a region of a buffer object's data store

Signature

glInvalidateBufferSubData( GLuint ( buffer ) , GLintptr ( offset ) , GLsizeiptr ( length ) )-> void

glInvalidateBufferSubData( buffer , offset , length )

Parameters

Variables	Description
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

Version Support

glInvalidateBufferSubData

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/