NAME¶
glPrimitiveRestartIndex - specify the primitive restart index
C SPECIFICATION¶
void
glPrimitiveRestartIndex(GLuint index);
PARAMETERS¶
index
Specifies the value to be interpreted as the
primitive restart index.
DESCRIPTION¶
glPrimitiveRestartIndex specifies a vertex array element that is treated
specially when primitive restarting is enabled. This is known as the primitive
restart index.
When one of the
Draw* commands transfers a set of generic attribute array
elements to the GL, if the index within the vertex arrays corresponding to
that set is equal to the primitive restart index, then the GL does not process
those elements as a vertex. Instead, it is as if the drawing command ended
with the immediately preceding transfer, and another drawing command is
immediately started with the same parameters, but only transferring the
immediately following element through the end of the originally specified
elements.
When either
glDrawElementsBaseVertex(),
glDrawElementsInstancedBaseVertex() or
glMultiDrawElementsBaseVertex() is used, the primitive restart
comparison occurs before the basevertex offset is added to the array index.
NOTES¶
glPrimitiveRestartIndex is available only if the GL version is 3.1 or
greater.
SEE ALSO¶
glDrawArrays(),
glDrawElements(),
glDrawElementsBaseVertex(),
glDrawElementsInstancedBaseVertex()
COPYRIGHT¶
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/.
