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GLCLEARBUFFERDATA

NAME

glClearBufferData, glClearNamedBufferData - fill a buffer object's data store with a fixed value

C SPECIFICATION

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

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

PARAMETERS

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:

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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:

       

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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

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SEE ALSO

glClearBufferSubData().

COPYRIGHT

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/.

COPYRIGHT

Copyright © 2011-2014 Khronos Group

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