test the string is char or integer Post: 302244543

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glvertexattribdivisor

GLVERTEXATTRIBDIVISO(3G)					    OpenGL 3.3						  GLVERTEXATTRIBDIVISO(3G)

NAME

       glVertexAttribDivisor - modify the rate at which generic vertex attributes advance during instanced rendering

C SPECIFICATION

       void glVertexAttribDivisor(GLuint index, GLuint divisor);

PARAMETERS

       index
	   Specify the index of the generic vertex attribute.

       divisor
	   Specify the number of instances that will pass between updates of the generic attribute at slot index.

DESCRIPTION

       glVertexAttribDivisor modifies the rate at which generic vertex attributes advance when rendering multiple instances of primitives in a
       single draw call. If divisor is zero, the attribute at slot index advances once per vertex. If divisor is non-zero, the attribute advances
       once per divisor instances of the set(s) of vertices being rendered. An attribute is referred to as instanced if its
       GL_VERTEX_ATTRIB_ARRAY_DIVISOR value is non-zero.

       index must be less than the value of GL_MAX_VERTEX_ATTRIBUTES.

NOTES

       glVertexAttribDivisor is available only if the GL version is 3.3 or higher.

ERRORS

       GL_INVALID_VALUE is generated if index is greater than or equal to the value of GL_MAX_VERTEX_ATTRIBUTES.

SEE ALSO

       glVertexAttribPointer(), glEnableVertexAttribArray(), glDisableVertexAttribArray()

COPYRIGHT

       Copyright (C) 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/.

OpenGL 3.3							    03/08/2011						  GLVERTEXATTRIBDIVISO(3G)