Update glVertexAttribPointer.xhtml

Some interesting things I found out while porting to the core context.
hunterashner · Feb 19, 2015 · 679fa8d · 679fa8d
1 parent 73ef26c
commit 679fa8d
Showing 1 changed file with 12 additions and 3 deletions.
diff --git a/gl3/glVertexAttribPointer.xhtml b/gl3/glVertexAttribPointer.xhtml
@@ -80,9 +80,18 @@
     is <code class="constant">GL_INT_2_10_10_10_REV</code> or <code class="constant">GL_UNSIGNED_INT_2_10_10_10_REV</code>
     and <em class="parameter"><code>size</code></em> is not 4 or <code class="constant">GL_BGRA</code>.</p><p><code class="constant">GL_INVALID_OPERATION</code> is generated by <code class="function">glVertexAttribPointer</code>
     if <em class="parameter"><code>size</code></em> is <code class="constant">GL_BGRA</code> and <em class="parameter"><code>noramlized</code></em>
-    is <code class="constant">GL_FALSE</code>.</p><p><code class="constant">GL_INVALID_OPERATION</code> is generated if zero is bound to the
+    is <code class="constant">GL_FALSE</code>.</p>
+    <p><code class="constant">GL_INVALID_OPERATION</code> is generated if zero is bound to the
     <code class="constant">GL_ARRAY_BUFFER</code> buffer object binding point and the
-    <em class="parameter"><code>pointer</code></em> argument is not <code class="constant">NULL</code>.</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p><a href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a>
+    <em class="parameter"><code>pointer</code></em> argument is not <code class="constant">NULL</code>.
+    (Note: In the core context, the old method of passing glVertexAttribPointer and glDrawArrays pointers
+    to mesh data in main memory is no longer allowed. You must create a Vertex Buffer Object and fill it
+    with your mesh data.)
+    </p>
+    <p><code class="constant">GL_INVALID_OPERATION</code> is generated in the core context if there is
+    no Vertex Array Object bound. 
+    </p>
+    </div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p><a href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a>
     with argument <code class="constant">GL_MAX_VERTEX_ATTRIBS</code></p><p><a href="glGetVertexAttrib"><span class="citerefentry"><span class="refentrytitle">glGetVertexAttrib</span></span></a>
     with arguments <em class="parameter"><code>index</code></em> and <code class="constant">GL_VERTEX_ATTRIB_ARRAY_ENABLED</code></p><p><a href="glGetVertexAttrib"><span class="citerefentry"><span class="refentrytitle">glGetVertexAttrib</span></span></a>
     with arguments <em class="parameter"><code>index</code></em> and <code class="constant">GL_VERTEX_ATTRIB_ARRAY_SIZE</code></p><p><a href="glGetVertexAttrib"><span class="citerefentry"><span class="refentrytitle">glGetVertexAttrib</span></span></a>
@@ -110,4 +119,4 @@
             This material may be distributed subject to the terms and conditions set forth in 
             the Open Publication License, v 1.0, 8 June 1999.
             <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
-        </p></div></div></div>
+        </p></div></div></div>