glClearBufferData : PyOpenGL 3.1.4 GL Man Pages

fill a buffer object's data store with a fixed value

Signature

glClearBufferData( GLenum ( target ) , GLenum ( internalformat ) , GLenum ( format ) , GLenum ( type ) , const void * ( data ) )-> void

glClearBufferData( target , internalformat , format , type , data )

glClearNamedBufferData( GLuint ( buffer ) , GLenum ( internalformat ) , GLenum ( format ) , GLenum ( type ) , const void *( data ) )-> void

glClearNamedBufferData( buffer , internalformat , format , type , data )

Parameters

Variables	Description
target	Specifies the target to which the buffer object is bound for glClearBufferData , which must be one of the buffer binding targets in the following table:
buffer	Specifies the name of the buffer object for glClearNamedBufferData .
internalformat	The internal format with which the data will be stored in the buffer object.
format	The format of the data in memory addressed by data .
type	The type of the data in memory addressed by data .
data	The address of a memory location storing the data to be replicated into the buffer's data store.

Description

glClearBufferData and glClearNamedBufferData fill the entirety of a buffer object's data store with data from client memory.

Data, initially supplied in a format specified by format in data type type is read from the memory address given by data and converted into the internal representation given by internalformat , which must be one of the following sized internal formats:

This converted data is then replicated throughout the buffer object's data store. If data is NULL, then the buffer's data store is filled with zeros.

Errors

GL_INVALID_ENUM is generated by glClearBufferData if target is not one of the generic buffer binding targets.

GL_INVALID_VALUE is generated by glClearBufferData if no buffer is bound target .

GL_INVALID_OPERATION is generated by glClearNamedBufferData if buffer is not the name of an existing buffer object.

GL_INVALID_ENUM is generated if internalformat is not one of the valid sized internal formats listed in the table above.

GL_INVALID_OPERATION is generated if any part of the specified range of the buffer object is mapped with glMapBufferRange or glMapBuffer , unless it was mapped with the GL_MAP_PERSISTENT_BIT bit set in the glMapBufferRange access flags.

GL_INVALID_VALUE is generated if format is not a valid format, or type is not a valid type.

Version Support

glClearBufferData
glClearNamedBufferData

Copyright

2011-2014 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/

glClearBufferData