1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<HTML> 3<HEAD> 4<META http-equiv="Content-Type" content="text/html; charset=windows-1252"> 5<META name="GENERATOR" content="Microsoft FrontPage 5.0"> 6<META http-equiv="Content-Style-Type" content="text/css"> 7<LINK rel="stylesheet" type="text/css" href="../../../CSS/revolution.css"> 8<TITLE>tex-wrap</TITLE> 9</HEAD> 10<BODY> 11<H1 align="left">tex-wrap</H1> 12 13<H2>Description</H2> 14<P>This program tests texture wrap modes. There are nine texture panels, and all combinations (three modes for S, T directions) are displayed at once. The user can change the scale of each texture coordinate and filter mode (near/linear).</P> 15 16<H2>Coverage</H2> 17<TABLE border="1" cellpadding="3" cellspacing="0.1" width="640"> 18 <TBODY> 19 <TR> 20<TD width="30%" bgcolor="#C0C0C0"><EM><STRONG>Functions</STRONG></EM></TD> 21<TD width="25%" bgcolor="#C0C0C0"><EM><STRONG>Parameters</STRONG></EM></TD> 22<TD width="45%" bgcolor="#C0C0C0"><EM><STRONG>Description</STRONG></EM></TD> 23 </TR> 24 <TR> 25<TD width="30%" rowspan="5"><A href="../../../gx/Texture/GXInitTexObj.html"><CODE>GXInitTexObj</CODE></A></TD> 26<TD width="25%"><SPAN class="argument">Pointer to image data.</SPAN></TD> 27<TD width="45%">Appropriate value.</TD> 28 </TR> 29 <TR> 30<TD width="25%"><SPAN class="argument">Width and height</SPAN></TD> 31<TD width="45%">Power of 2 only.</TD> 32 </TR> 33 <TR> 34<TD width="25%"><SPAN class="argument">format</SPAN></TD> 35<TD width="45%">Always <CODE>GX_TF_RGB5A3</CODE>.</TD> 36 </TR> 37 <TR> 38<TD width="25%"><SPAN class="argument">Wrap mode (s, t).</SPAN></TD> 39<TD width="45%"><STRONG><CODE>GX_CLAMP</CODE>, <CODE>GX_REPEAT</CODE>, <CODE>GX_MIRROR</CODE></STRONG></TD> 40 </TR> 41 <TR> 42<TD width="25%"><SPAN class="argument">Mipmap</SPAN></TD> 43<TD width="45%"><CODE>GX_TRUE</CODE> / <CODE>GX_FALSE</CODE></TD> 44 </TR> 45 <TR> 46<TD width="30%" rowspan="8"><A href="../../../gx/Texture/GXInitTexObjLOD.html"><CODE><CODE>GXInitTexObjLOD</CODE></CODE></A></TD> 47<TD width="25%"><SPAN class="argument">minification filter</SPAN></TD> 48<TD width="45%"><CODE>GX_NEAR</CODE>, <CODE>GX_LINEAR</CODE>, <CODE>GX_NEAR_MIP_LIN</CODE>, <CODE>GX_LIN_MIP_LIN</CODE></TD> 49 </TR> 50 <TR> 51<TD width="25%"><SPAN class="argument">Magnification filter</SPAN></TD> 52<TD width="45%"><CODE>GX_NEAR</CODE>, <CODE>GX_LINEAR</CODE></TD> 53 </TR> 54 <TR> 55<TD width="25%"><SPAN class="argument">Minimum LOD</SPAN></TD> 56<TD width="45%">Always 0 (depends on tpl file).</TD> 57 </TR> 58 <TR> 59<TD width="25%"><SPAN class="argument">Max LOD</SPAN></TD> 60<TD width="45%">Existing values (depends on tpl file).</TD> 61 </TR> 62 <TR> 63<TD width="25%"><SPAN class="argument">LOD bias</SPAN></TD> 64<TD width="45%">Always 0 (depends on tpl file).</TD> 65 </TR> 66 <TR> 67<TD width="25%"><SPAN class="argument">Bias clamp</SPAN></TD> 68<TD width="45%">Always <CODE>GX_FALSE</CODE>.</TD> 69 </TR> 70 <TR> 71<TD width="25%"><SPAN class="argument">Edge LOD enable</SPAN></TD> 72<TD width="45%">Always <CODE>GX_FALSE</CODE> (depends on tpl file).</TD> 73 </TR> 74 <TR> 75<TD width="25%"><SPAN class="argument">Anisotropic filter</SPAN></TD> 76<TD width="45%">Always <CODE>GX_ANISO_1</CODE>.</TD> 77 </TR> 78 <TR> 79<TD width="30%"><A href="../../../gx/Texture/GXLoadTexObj.html"><CODE><CODE>GXLoadTexObj</CODE></CODE></A></TD> 80<TD width="25%"><SPAN class="argument">Destination texture name.</SPAN></TD> 81<TD width="45%">Always <CODE>GX_TEXMAP0</CODE>.</TD> 82 </TR> 83 <TR> 84<TD width="30%" rowspan="2"><A href="../../../gx/Tev/GXSetTevOp.html"><CODE>GXSetTevOp</CODE></A></TD> 85<TD width="25%"><SPAN class="argument">TEV stage ID.</SPAN></TD> 86<TD width="45%">Always <CODE>GX_TEVSTAGE0</CODE>.</TD> 87 </TR> 88 <TR> 89<TD width="25%"><SPAN class="argument">Operation mode</SPAN></TD> 90<TD width="45%">Always <CODE>GX_REPLACE</CODE>.</TD> 91 </TR> 92 </TBODY> 93</TABLE> 94 95<H2>Using the Demo</H2> 96<P>START exits the test.</P> 97<P>The Control Stick changes the scale of each s, t texture coordinate.</P> 98<P>The A Button changes the texture.</P> 99<P>The B Button changes filter mode (Near / Linear).</P> 100<P>The X Button resets texture coordinates.</P> 101 102<H2>Snapshot</H2> 103<P>Arrow texture is displayed.</P> 104<P>(s coordinate) Left: <code>GX_REPEAT</code>, Center: <code>GX_CLAMP</code>, Right: <CODE>GX_MIRROR</CODE><BR>(T coordinate) Top: <code>GX_REPEAT</code>, Center: <code>GX_CLAMP</code>, Bottom:<CODE>GX_MIRROR</CODE></P> 105<P><IMG src="./images/tex-wrap-0.jpg" alt="tex-wrap-0.jpg (47056 bytes)" width="640" height="448"></P> 106 107<P>A test color pattern is displayed with a linear filter applied. The border will be gray only when <CODE>GX_REPEAT</CODE> is specified.</P> 108<P><IMG src="./images/tex-wrap-1.jpg" alt="tex-wrap-1.jpg (34027 bytes)" width="640" height="448"></P> 109 110<H2>Data Files Required</H2> 111<P><CODE>$REVOLUTION_SDK_ROOT/dvddata/gxTests/tex-03.tpl</CODE></P> 112 113<H2>Revision History</H2> 114<P> 1152006/03/01 Initial version.<br> 116</P> 117 118<hr><p>CONFIDENTIAL</p></body> 119</HTML>
