source: OGRE/trunk/ogrenew/Docs/manual/manual_49.html @ 657

Revision 657, 2.8 KB checked in by mattausch, 19 years ago (diff)

added ogre dependencies and patched ogre sources
Line 
1<HTML>
2<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
3<!-- Created on , 12 2006 by texi2html 1.64 -->
4<!--
5Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
6            Karl Berry  <karl@freefriends.org>
7            Olaf Bachmann <obachman@mathematik.uni-kl.de>
8            and many others.
9Maintained by: Olaf Bachmann <obachman@mathematik.uni-kl.de>
10Send bugs and suggestions to <texi2html@mathematik.uni-kl.de>
11 
12-->
13<HEAD>
14<TITLE>OGRE Manual v1.0.7: Updating Index Buffers</TITLE>
15
16<META NAME="description" CONTENT="OGRE Manual v1.0.7: Updating Index Buffers">
17<META NAME="keywords" CONTENT="OGRE Manual v1.0.7: Updating Index Buffers">
18<META NAME="resource-type" CONTENT="document">
19<META NAME="distribution" CONTENT="global">
20<META NAME="Generator" CONTENT="texi2html 1.64">
21<LINK TYPE="text/css" rel="stylesheet" href="../style.css"> 
22</HEAD>
23
24<BODY LANG="" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#800080" ALINK="#FF0000">
25
26<A NAME="SEC190"></A>
27<TABLE CELLPADDING=1 CELLSPACING=1 BORDER=0>
28<TR><TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_48.html#SEC188"> &lt; </A>]</TD>
29<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_47.html#SEC187"> Up </A>]</TD>
30<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_50.html#SEC191"> &gt; </A>]</TD>
31<TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT"> &nbsp; <TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="index.html#SEC_Top">Top</A>]</TD>
32<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_toc.html#SEC_Contents">Contents</A>]</TD>
33<TD VALIGN="MIDDLE" ALIGN="LEFT">[Index]</TD>
34<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="manual_abt.html#SEC_About"> ? </A>]</TD>
35</TR></TABLE>
36<HR SIZE=1>
37<H3> 5.7.2 Updating Index Buffers </H3>
38<!--docid::SEC190::-->
39Updating index buffers can only be done when you lock the buffer for writing; See section <A HREF="manual_40.html#SEC176">5.4 Locking buffers</A> for details. Locking returns a void pointer, which must be cast to the apropriate type; with index buffers this is either an unsigned short (for 16-bit indexes) or an unsigned long (for 32-bit indexes). For example:
40<TABLE><tr><td>&nbsp;</td><td class=example><pre>unsigned short* pIdx = static_cast&#60;unsigned short*&#62;(ibuf-&#62;lock(HardwareBuffer::HBL_DISCARD));
41</pre></td></tr></table>You can then write to the buffer using the usual pointer semantics, just remember to unlock the buffer when you're finished!
42<P>
43
44<A NAME="Hardware Pixel Buffers"></A>
45<HR SIZE=1>
46<BR> 
47<FONT SIZE="-1">
48This document was generated
49by <I>Steve Streeting</I> on <I>, 12 2006</I>
50using <A HREF="http://www.mathematik.uni-kl.de/~obachman/Texi2html
51"><I>texi2html</I></A>
52
53</BODY>
54</HTML>
Note: See TracBrowser for help on using the repository browser.