Signature
Description
gl_VertexID
is a vertex language input variable that holds an
integer index for the vertex. The index is implicitly generated by
glDrawArrays
and other commands that do not reference the content of the
GL_ELEMENT_ARRAY_BUFFER
, or
explicitly generated from the content of the
GL_ELEMENT_ARRAY_BUFFER
by commands such as
glDrawElements
. For
glDrawElements
forms that take a
basevertex
,
gl_VertexID
will have this value added to the index from the buffer.
Version Support
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gl_VertexID
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See Also
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/
.