Signature
Parameters
| Variables | Description |
|---|---|
| mode |
Specifies what kind of primitives to render.
Symbolic constants
GL_POINTS
,
GL_LINE_STRIP
,
GL_LINE_LOOP
,
GL_LINES
,
GL_TRIANGLE_STRIP
,
GL_TRIANGLE_FAN
,
GL_TRIANGLES
,
GL_LINES_ADJACENCY
,
GL_LINE_STRIP_ADJACENCY
,
GL_TRIANGLES_ADJACENCY
,
GL_TRIANGLE_STRIP_ADJACENCY
and
GL_PATCHES
are accepted.
|
| start |
Specifies the minimum array index contained in
indices
.
|
| end |
Specifies the maximum array index contained in
indices
.
|
| count |
Specifies the number of elements to be rendered.
|
| type |
Specifies the type of the values in indices. Must be one of
GL_UNSIGNED_BYTE
,
GL_UNSIGNED_SHORT
, or
GL_UNSIGNED_INT
.
|
| indices |
Specifies a pointer to the location where the indices are stored.
|
| basevertex |
Specifies a constant that should be added to each element of
indices
when chosing elements from the enabled vertex arrays.
|
Description
glDrawRangeElementsBaseVertex
is a restricted form of
glDrawElementsBaseVertex
.
mode
,
count
and
basevertex
match
the corresponding arguments to
glDrawElementsBaseVertex
, with the additional
constraint that all values in the array
indices
must lie between
start
and
end
,
inclusive, prior to adding
basevertex
. Index values lying outside the range [
start
,
end
]
are treated in the same way as
glDrawElementsBaseVertex
. The
i
th element
transferred by the corresponding draw call will be taken from element
indices
[i] +
basevertex
of each enabled
array. If the resulting value is larger than the maximum value representable by
type
, it is as if the calculation were upconverted to
32-bit unsigned integers (with wrapping on overflow conditions). The operation is undefined if the sum would be negative.
Errors
GL_INVALID_ENUM
is generated if
mode
is not an accepted value.
GL_INVALID_VALUE
is generated if
count
is negative.
GL_INVALID_OPERATION
is generated if a geometry shader is active and
mode
is incompatible with the input primitive type of the geometry shader in the currently installed program object.
GL_INVALID_OPERATION
is generated if a non-zero buffer object name is bound to an
enabled array or the element array and the buffer object's data store is currently mapped.
Version Support
| glDrawRangeElementsBaseVertex |
See Also
Copyright
Copyright
2010-2014 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/
.