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 http-equiv="Content-Style-Type" content="text/css"> 6<LINK rel="stylesheet" type="text/css" href="../../../CSS/revolution.css"> 7<TITLE>tg-shadow2</TITLE> 8</HEAD> 9<BODY> 10<H1 align="left">tg-shadow2</H1> 11 12<H2>Description</H2> 13<P>This program shows an example of complicated full-scene shadow generation. This method uses object IDs to determine which parts should become shadow. (For details, see the <a href="#Algorithm Details">Algorithm Details</a> section.))</P> 14<H2>Coverage</H2> 15<P>This list doesn't contain settings for drawing other than full-scene shadows.</P> 16<TABLE border="1" cellpadding="3" cellspacing="0.1" width="640"> 17 <TBODY> 18 <TR> 19<TD width="30%" bgcolor="#C0C0C0"><EM><STRONG>Functions</STRONG></EM></TD> 20<TD width="25%" bgcolor="#C0C0C0"><EM><STRONG>Parameters</STRONG></EM></TD> 21<TD width="45%" bgcolor="#C0C0C0"><EM><STRONG>Description</STRONG></EM></TD> 22 </TR> 23 <TR> 24<TD width="30%" rowspan="3"><A href="../../../gx/Transform/GXLoadTexMtxImm.html"><CODE>GXLoadTexMtxImm</CODE></A></TD> 25<TD width="25%">Matrices</TD> 26<TD width="45%">appropriate projection mtx</TD> 27 </TR> 28 <TR> 29<TD width="25%">matrix destination</TD> 30<TD width="45%"><FONT face="Courier New">GX_TEXMTX0</FONT></TD> 31 </TR> 32 <TR> 33<TD width="25%">Types</TD> 34<TD width="45%"><STRONG><FONT face="Courier New">GX_MTX3x4</FONT></STRONG></TD> 35 </TR> 36 <TR> 37<TD width="30%"><A href="../../../gx/TexCoordGen/GXSetNumTexGens.html"><CODE>GXSetNumTexGens</CODE></A></TD> 38<TD width="25%">number of texgens</TD> 39 <TD width="45%">1</TD> 40 </TR> 41 <TR> 42<TD width="30%" rowspan="4"><A href="../../../gx/TexCoordGen/GXSetTexCoordGen.html"><CODE>GXSetTexCoordGen</CODE></A></TD> 43<TD width="25%">destination coord</TD> 44<TD width="45%"><FONT face="Courier New">GX_TEXCOORD0</FONT></TD> 45 </TR> 46 <TR> 47<TD width="25%">texgen type</TD> 48<TD width="45%"><STRONG><FONT face="Courier New">GX_TG_MTX3x4</FONT></STRONG></TD> 49 </TR> 50 <TR> 51<TD width="25%">texgen src</TD> 52<TD width="45%"><STRONG><FONT face="Courier New">GX_TG_POS</FONT></STRONG></TD> 53 </TR> 54 <TR> 55<TD width="25%">mtx src</TD> 56<TD width="45%"><FONT face="Courier New">GX_TEXMTX0</FONT></TD> 57 </TR> 58 <TR> 59<TD width="30%" rowspan="5"><A href="../../../gx/Texture/GXInitTexObj.html"><CODE>GXInitTexObj</CODE></A></TD> 60<TD width="25%">Pointer to image data.</TD> 61<TD width="45%">Appropriate.</TD> 62 </TR> 63 <TR> 64<TD width="25%">width / height</TD> 65<TD width="45%">some constant values</TD> 66 </TR> 67 <TR> 68<TD width="25%">Format</TD> 69<TD width="45%"><FONT face="Courier New">GX_TF_RGBA8</FONT></TD> 70 </TR> 71 <TR> 72<TD width="25%">wrap mode(s, t)</TD> 73<TD width="45%"><FONT face="Courier New">GX_CLAMP</FONT></TD> 74 </TR> 75 <TR> 76<TD width="25%">mipmap</TD> 77<TD width="45%">Always <CODE>GX_FALSE</CODE>.</TD> 78 </TR> 79 <TR> 80<TD width="30%"><A href="../../../gx/Texture/GXLoadTexObj.html"><CODE>GXLoadTexObj</CODE></A></TD> 81<TD width="25%">Destination texture name.</TD> 82<TD width="45%"><FONT face="Courier New">GX_TEXMAP0</FONT></TD> 83 </TR> 84 <TR> 85<TD width="30%"><A href="../../../gx/Texture/GXInvalidateTexAll.html"><CODE>GXInvalidateTexAll</CODE></A></TD> 86<TD width="25%">(no parameter)</TD> 87 <TD width="45%"> </TD> 88 </TR> 89 <TR> 90<TD width="30%"><A href="../../../gx/Framebuffer/GXSetTexCopySrc.html"><CODE>GXSetTexCopySrc</CODE></A></TD> 91<TD width="25%">top / left / width / height</TD> 92<TD width="45%">some constant values</TD> 93 </TR> 94 <TR> 95<TD width="30%" rowspan="3"><A href="../../../gx/Framebuffer/GXSetTexCopyDst.html"><CODE>GXSetTexCopyDst</CODE></A></TD> 96<TD width="25%">width / height</TD> 97<TD width="45%">some constant values</TD> 98 </TR> 99 <TR> 100<TD width="25%">Format</TD> 101<TD width="45%"><FONT face="Courier New">GX_TF_RGBA8</FONT></TD> 102 </TR> 103 <TR> 104<TD width="25%">mipmap filter</TD> 105<TD width="45%"><FONT face="Courier New">GX_FALSE</FONT></TD> 106 </TR> 107 <TR> 108<TD width="30%" rowspan="2"><A href="../../../gx/Framebuffer/GXCopyTex.html"><CODE>GXCopyTex</CODE></A></TD> 109<TD width="25%">Pointer to image data.</TD> 110<TD width="45%">Appropriate.</TD> 111 </TR> 112 <TR> 113<TD width="25%">clear operation</TD> 114<TD width="45%"><FONT face="Courier New">GX_TRUE</FONT></TD> 115 </TR> 116 <TR> 117<TD width="30%"><A href="../../../gx/Tev/GXSetNumTevStages.html"><CODE>GXSetNumTevStages</CODE></A></TD> 118<TD width="25%">number of TEV stages</TD> 119 <TD width="45%">2</TD> 120 </TR> 121 <TR> 122<TD width="30%"><A href="../../../gx/Tev/GXSetTevOrder.html"><CODE>GXSetTevOrder</CODE></A></TD> 123<TD width="25%">each argument</TD> 124<TD width="45%"><A href="#Algorithm Details">see algorithm details</A></TD> 125 </TR> 126 <TR> 127<TD width="30%"><CODE><A href="../../../gx/Tev/GXSetTevColorIn.html">GXSetTevColorIn</A></CODE></TD> 128<TD width="25%">each argument</TD> 129<TD width="45%"><A href="#Algorithm Details">see algorithm details</A></TD> 130 </TR> 131 <TR> 132<TD width="30%"><CODE><A href="../../../gx/Tev/GXSetTevColorOp.html">GXSetTevColorOp</A></CODE></TD> 133<TD width="25%">each argument</TD> 134<TD width="45%"><A href="#Algorithm Details">see algorithm details</A></TD> 135 </TR> 136 <TR> 137<TD width="25%">clamp mode</TD> 138<TD width="45%"><strong>GX_TC_EQ</strong>(stage0), GX_TC_LINEAR(stage1)<br> <a href="#Algorithm Details">see algorithm details</a></TD> 139 </TR> 140 <TR> 141<TD width="30%" rowspan="2"><CODE><A href="../../../gx/Tev/GXSetTevColor.html">GXSetTevColor</A></CODE></TD> 142<TD width="25%">tev color register</TD> 143<TD width="45%"><FONT face="Courier New">GX_TEVREG0</FONT></TD> 144 </TR> 145 <TR> 146<TD width="25%">color value</TD> 147<TD width="45%">Appropriate.</TD> 148 </TR> 149 <TR> 150<TD width="30%"><A href="../../../gx/Management/GXPixModeSync.html"><CODE>GXPixModeSync</CODE></A></TD> 151<TD width="25%">(no parameter)</TD> 152 <TD width="45%"> </TD> 153 </TR> 154 </TBODY> 155</TABLE> 156<H2>Operation Method</H2> 157<P>The Menu button exits the test.</P> 158<P>The main stick moves camera position.<br>The sub stick moves light position.</P> 159<P>The A button changes display modes.<br>The B button switches the shadow projection type (perspective/orthographic).<br>The X button toggles the model size adjustment ON/OFF.<br>The Y button changes the size of shadow map.</P> 160<H2>Snapshot</H2> 161<P><IMG src="./images/tg-shadow2-00.jpg" alt="tg-shadow2-00.jpg (29082 bytes)" width="640" height="480"></P> 162<H2>Required Data Files</H2> 163<P>None.</P> 164<H2><A name="Algorithm Details">Algorithm Details</A></H2> 165<P>See Section "7.2 ID-Based Full-Scene Shadow Mapping" in "Graphics Library [Application Edition]."</P> 166<H2>Revision History</H2> 167<P>2006/03/01 Initial version.</P> 168<hr> 169<P>CONFIDENTIAL</p> 170</BODY> 171</HTML>
