1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3 4<head> 5<META http-equiv="Content-Type" content="text/html; charset=windows-1252"> 6<META name="GENERATOR" content="Microsoft FrontPage 5.0"> 7<META http-equiv="Content-Style-Type" content="text/css"> 8<LINK rel="stylesheet" type="text/css" href="../../../CSS/revolution.css"> 9<title>geo-particle</title> 10</head> 11 12<body> 13 14<h1 align="left">geo-particle</h1> 15 16<h2>Description</h2> 17 18<P><font face="Courier New">geo-particle</font> tests point size and line width using a simple particle system. Each particle can be a line or a point of various widths. This demo also tests texture points using <font face="Courier New">GX_TO_ZERO</font>. The color of each particle is point-sampled from a texture.</P> 19<h2>Coverage</h2> 20<TABLE border="1" cellpadding="3" cellspacing="0.1" width="640"> 21 <tr> 22<TD width="30%" bgcolor="#C0C0C0"><em><strong>Function</strong></em></TD> 23<TD width="25%" bgcolor="#C0C0C0"><em><strong>Parameters</strong></em></TD> 24<TD width="45%" bgcolor="#C0C0C0"><em><strong>Description</strong></em></TD> 25 </tr> 26 <tr> 27<TD width="30%" rowspan="2"><a href="../../../gx/Geometry/GXSetPointSize.html"><FONT face="Courier New">GXSetPointSize</FONT></a></TD> 28<TD width="25%" align="left"><font face="Courier New"><em><strong>width</strong></em></font></TD> 29<TD width="45%">Specifies the width using a <FONT face="Courier New">u8</FONT> type value. Specify a width value in 1/6 steps from 0 through 42.5.</TD> 30 </tr> 31 <tr> 32<TD width="25%" align="left"><font face="Courier New"><em><strong>tex_offsets</strong></em></font></TD> 33<TD width="45%">Ignored (<font face="Courier New">GX_TO_ZERO</font> if texture is used).</TD> 34 </tr> 35 <tr> 36<TD width="30%" rowspan="2"><a href="../../../gx/Geometry/GXSetLineWidth.html"><FONT face="Courier New">GXSetLineWidth</FONT></a></TD> 37<TD width="25%" align="left"><font face="Courier New"><em><strong>size</strong></em></font></TD> 38<TD width="45%">Specifies the width using a <FONT face="Courier New">u8</FONT> type value. Specify a width value in 1/6 steps from 0 through 42.5.</TD> 39 </tr> 40 <tr> 41<TD width="25%" align="left"><font face="Courier New"><em><strong>tex_offsets</strong></em></font></TD> 42<TD width="45%">Ignored.</TD> 43 </tr> 44</TABLE> 45<h2>Operation Method</h2> 46 47<P>The menu button exits the test.</P> 48<P>The main stick changes the orientation of the particle emitter.</P> 49<p>The X button toggles the control mode:</p> 50 51<p> <u><strong>Particle Type Control</strong></u> 52 53<ul> 54<li><SPAN>The B button selects particle type (points, lines, texture points).</SPAN></li> 55</ul> 56 57<p> <u><strong>Point Size Animation Control</strong></u> 58 59<ul> 60<li><SPAN>The B button selects size animation type (constant size per particle, animated-growing smaller, animated-growing larger).</SPAN></li> 61</ul> 62<P>The A button pauses the animation while pressed down.</P> 63<P>The L/R button changes the point size.</P> 64<h2>Snapshot</h2> 65<P>Particle Type = Points<BR>Size Animation = Animated - Growing Larger<br></P> 66<p> 67<img src="./images/geo-particle-0.gif" alt="<img src="geo-particle-2.gif" alt="geo-particle-0.gif (8989 bytes)" WIDTH="638" HEIGHT="480">" width="642" height="479"></p> 68 69<P>Particle Type = Lines<br>Size Animation = Animated - Growing Larger<br></P> 70<p> 71<img src="./images/geo-particle-1.gif" alt="<img src="geo-particle-2.gif" alt="geo-particle-1.gif (8660 bytes)" WIDTH="638" HEIGHT="480">" width="641" height="480"></p> 72 73<P>Particle Type = Texture Points<br>Size Animation = Constant per particle<br></P> 74<p> 75<img src="./images/geo-particle-2.gif" alt="<img src="geo-particle-2.gif" alt="geo-particle-2.gif (12423 bytes)" WIDTH="638" HEIGHT="480">" width="638" height="480"></p> 76 77<h2>Required Data Files</h2> 78 79<p>Requires <CODE>geo-00.tpl</CODE> from the <CODE>$REVOLUTION_SDK_ROOT/dvddata/gxTests</CODE> directory.</p> 80<H2>Revision History</H2> 81<P>2006/03/01 Initial version.</P> 82<hr> 83<P>CONFIDENTIAL</p> 84</BODY> 85</HTML>
