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4 Reference Pages
</title><meta name=
"generator" content=
"DocBook XSL Stylesheets V1.69.1" /></head><body><div class=
"refentry" lang=
"en" xml:
lang=
"en"><a id=
"glMultiDrawElementsBaseVertex"></a><div class=
"titlepage"></div><div class=
"refnamediv"><h2>Name
</h2><p>glMultiDrawElementsBaseVertex — render multiple sets of primitives by specifying indices of array data elements and an index to apply to each index
</p></div><div class=
"refsynopsisdiv"><h2>C Specification
</h2><div class=
"funcsynopsis"><table border=
"0" summary=
"Function synopsis" cellspacing=
"0" cellpadding=
"0"><tr><td><code class=
"funcdef">void
<b class=
"fsfunc">glMultiDrawElementsBaseVertex
</b>(
</code></td><td>GLenum
</td><td><var class=
"pdparam">mode
</var>,
</td></tr><tr><td> </td><td>const GLsizei *
</td><td><var class=
"pdparam">count
</var>,
</td></tr><tr><td> </td><td>GLenum
</td><td><var class=
"pdparam">type
</var>,
</td></tr><tr><td> </td><td>const GLvoid **
</td><td><var class=
"pdparam">indices
</var>,
</td></tr><tr><td> </td><td>GLsizei
</td><td><var class=
"pdparam">primcount
</var>,
</td></tr><tr><td> </td><td>GLint *
</td><td><var class=
"pdparam">basevertex
</var><code>)
</code>;
</td></tr></table></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"parameters"></a><h2>Parameters
</h2><div class=
"variablelist"><dl><dt><span class=
"term"><em class=
"parameter"><code>mode
</code></em></span></dt><dd><p>
5 Specifies what kind of primitives to render.
7 <code class=
"constant">GL_POINTS
</code>,
8 <code class=
"constant">GL_LINE_STRIP
</code>,
9 <code class=
"constant">GL_LINE_LOOP
</code>,
10 <code class=
"constant">GL_LINES
</code>,
11 <code class=
"constant">GL_LINE_STRIP_ADJACENCY
</code>,
12 <code class=
"constant">GL_LINES_ADJACENCY
</code>,
13 <code class=
"constant">GL_TRIANGLE_STRIP
</code>,
14 <code class=
"constant">GL_TRIANGLE_FAN
</code>,
15 <code class=
"constant">GL_TRIANGLES
</code>,
16 <code class=
"constant">GL_TRIANGLE_STRIP_ADJACENCY
</code>,
17 <code class=
"constant">GL_TRIANGLES_ADJACENCY
</code> and
<code class=
"constant">GL_PATCHES
</code>
19 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>count
</code></em></span></dt><dd><p>
20 Points to an array of the elements counts.
21 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>type
</code></em></span></dt><dd><p>
22 Specifies the type of the values in
<em class=
"parameter"><code>indices
</code></em>. Must be one of
23 <code class=
"constant">GL_UNSIGNED_BYTE
</code>,
<code class=
"constant">GL_UNSIGNED_SHORT
</code>, or
24 <code class=
"constant">GL_UNSIGNED_INT
</code>.
25 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>indices
</code></em></span></dt><dd><p>
26 Specifies a pointer to the location where the indices are stored.
27 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>primcount
</code></em></span></dt><dd><p>
28 Specifies the size of the
<em class=
"parameter"><code>count
</code></em> array.
29 </p></dd><dt><span class=
"term"><em class=
"parameter"><code>basevertex
</code></em></span></dt><dd><p>
30 Specifies a pointer to the location where the base vertices are stored.
31 </p></dd></dl></div></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"description"></a><h2>Description
</h2><p>
32 <code class=
"function">glMultiDrawElementsBaseVertex
</code> behaves identically to
<a href=
"glDrawElementsBaseVertex.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDrawElementsBaseVertex
</span></span></a>,
33 except that
<em class=
"parameter"><code>primcount
</code></em> separate lists of elements are specifried instead.
35 It has the same effect as:
36 </p><pre class=
"programlisting"> for (int i =
0; i
< <em class=
"parameter"><code>primcount
</code></em>; i++)
37 if (
<em class=
"parameter"><code>count
</code></em>[i]
> 0)
38 glDrawElementsBaseVertex(
<em class=
"parameter"><code>mode
</code></em>,
39 <em class=
"parameter"><code>count
</code></em>[i],
40 <em class=
"parameter"><code>type
</code></em>,
41 <em class=
"parameter"><code>indices[i]
</code></em>,
42 <em class=
"parameter"><code>basevertex[i]
</code></em>);
</pre><p>
43 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"notes"></a><h2>Notes
</h2><p>
44 <code class=
"function">glMultiDrawElementsBaseVertex
</code> is available only if the GL version is
3.1 or greater.
46 <code class=
"constant">GL_LINE_STRIP_ADJACENCY
</code>,
47 <code class=
"constant">GL_LINES_ADJACENCY
</code>,
48 <code class=
"constant">GL_TRIANGLE_STRIP_ADJACENCY
</code> and
49 <code class=
"constant">GL_TRIANGLES_ADJACENCY
</code>
50 are available only if the GL version is
3.2 or greater.
51 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"errors"></a><h2>Errors
</h2><p>
52 <code class=
"constant">GL_INVALID_ENUM
</code> is generated if
<em class=
"parameter"><code>mode
</code></em> is not an accepted value.
54 <code class=
"constant">GL_INVALID_VALUE
</code> is generated if
<em class=
"parameter"><code>primcount
</code></em> is negative.
56 <code class=
"constant">GL_INVALID_OPERATION
</code> is generated if a non-zero buffer object name is bound to an
57 enabled array or the element array and the buffer object's data store is currently mapped.
58 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
59 <a href=
"glMultiDrawElements.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glMultiDrawElements
</span></span></a>,
60 <a href=
"glDrawElementsBaseVertex.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDrawElementsBaseVertex
</span></span></a>,
61 <a href=
"glDrawArrays.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glDrawArrays
</span></span></a>,
62 <a href=
"glVertexAttribPointer.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glVertexAttribPointer
</span></span></a>
63 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
64 Copyright
<span class=
"trademark"></span>©
2010 Khronos Group.
65 This material may be distributed subject to the terms and conditions set forth in
66 the Open Publication License, v
1.0,
8 June
1999.
67 <a href=
"http://opencontent.org/openpub/" target=
"_top">http://opencontent.org/openpub/
</a>.
68 </p></div></div></body></html>