GLAPI/glGetVertexAttribPointer: Difference between revisions
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: Specifies the generic vertex attribute parameter to be returned. | : Specifies the generic vertex attribute parameter to be returned. | ||
; pname | ; pname | ||
: Specifies the symbolic name of the generic vertex attribute parameter to be returned. Must be {{ | : Specifies the symbolic name of the generic vertex attribute parameter to be returned. Must be {{enum|GL_VERTEX_ATTRIB_ARRAY_POINTER}}. | ||
; pointer | ; pointer | ||
: Returns the pointer value. | : Returns the pointer value. | ||
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'''glGetVertexAttribPointerv''' returns pointer information. {{param|index}} is the generic vertex attribute to be queried, {{param|pname}} is a symbolic constant indicating the pointer to be returned, and {{param|params}} is a pointer to a location in which to place the returned data. | '''glGetVertexAttribPointerv''' returns pointer information. {{param|index}} is the generic vertex attribute to be queried, {{param|pname}} is a symbolic constant indicating the pointer to be returned, and {{param|params}} is a pointer to a location in which to place the returned data. | ||
The {{param|pointer}} returned is a byte offset into the data store of the buffer object that was bound to the {{ | The {{param|pointer}} returned is a byte offset into the data store of the buffer object that was bound to the {{enum|GL_ARRAY_BUFFER}} target (see {{apifunc|glBindBuffer}}) when the desired pointer was previously specified. | ||
== Notes == | == Notes == | ||
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== Errors == | == Errors == | ||
{{ | {{enum|GL_INVALID_OPERATION}} is generated if no vertex array object is currently bound. | ||
{{ | {{enum|GL_INVALID_VALUE}} is generated if {{param|index}} is greater than or equal to {{enum|GL_MAX_VERTEX_ATTRIBS}}. | ||
{{ | {{enum|GL_INVALID_ENUM}} is generated if {{param|pname}} is not an accepted value. | ||
== Associated Gets == | == Associated Gets == | ||
{{apifunc|glGet}} with argument {{ | {{apifunc|glGet}} with argument {{enum|GL_MAX_VERTEX_ATTRIBS}} | ||
== See Also == | == See Also == | ||
Revision as of 17:25, 29 April 2012
| Core in version | 4.6 | |
|---|---|---|
| Core since version | 2.0 | |
glGetVertexAttribPointerv: return the address of the specified generic vertex attribute pointer
Function Definition
void glGetVertexAttribPointerv(GLuint index, GLenum pname, GLvoid **pointer);
- index
- Specifies the generic vertex attribute parameter to be returned.
- pname
- Specifies the symbolic name of the generic vertex attribute parameter to be returned. Must be GL_VERTEX_ATTRIB_ARRAY_POINTER.
- pointer
- Returns the pointer value.
Description
glGetVertexAttribPointerv returns pointer information. index is the generic vertex attribute to be queried, pname is a symbolic constant indicating the pointer to be returned, and params is a pointer to a location in which to place the returned data.
The pointer returned is a byte offset into the data store of the buffer object that was bound to the GL_ARRAY_BUFFER target (see glBindBuffer) when the desired pointer was previously specified.
Notes
The state returned is retrieved from the currently bound vertex array object.
The initial value for each pointer is 0.
Errors
GL_INVALID_OPERATION is generated if no vertex array object is currently bound.
GL_INVALID_VALUE is generated if index is greater than or equal to GL_MAX_VERTEX_ATTRIBS.
GL_INVALID_ENUM is generated if pname is not an accepted value.
Associated Gets
glGet with argument GL_MAX_VERTEX_ATTRIBS
See Also
glGetVertexAttrib, glVertexAttribPointer
Copyright
Copyright © 2003-2005 3Dlabs Inc. Ltd. Copyright © 2010 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/.