1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 2<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US"><!-- InstanceBegin template="/Templates/default_template.dwt" codeOutsideHTMLIsLocked="false" --> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5<meta http-equiv="Content-Style-Type" content="text/css" /> 6<!-- InstanceBeginEditable name="CSS の相対パス指定" --> 7<link href="../../../../common/manual.css" rel="stylesheet" type="text/css" /> 8<!-- InstanceEndEditable --> <!-- InstanceBeginEditable name="ページのタイトル" --> 9<title>Initial Velocity Animation</title> 10<!-- InstanceEndEditable --> 11</head> 12<body> 13<div> 14 <div class="body"> <!-- InstanceBeginEditable name="本文のタイトル" --> 15 <h1>Initial Velocity Animation</h1> 16 <!-- InstanceEndEditable --> <!-- InstanceBeginEditable name="本文" --> 17 <p>Initial velocity animation changes the initial speed of a particle at time of emission.</p> 18 <a name="a_tempo_animation" id="a_tempo_animation"></a> 19 <h2>Initial Velocity Animation</h2> 20 <!-- #BeginLibraryItem "/Library/glossary_patricle_initial_velocity.lbi" --> <!-- 初速 ( Initial_velocity ) --> 21 <p><em>Initial velocity</em> is the speed instantaneously inherited when a particle is emitted from a particle emitter. If there is no effect of an <em>external force</em>, such as gravity, the particle will maintain this initial velocity as it moves.</p> 22 <!-- #EndLibraryItem --> 23 <h3>Spread out from y-axis</h3> 24 <p>You can configure <I>Spread Out from Y Axis</I> from the <I>Speed</I> item on the particle set panel. Causes particles to spread out horizontally outwardly from the central (Y) axis of the particle emitter.</p> 25 <h4>Feature</h4> 26 <p>You can specify the speed at which particles spread out from the Y axis. Speed is only applied in the X-Z plane.</p> 27 <h4>Parameters</h4> 28 <p>Use the following parameters to configure <I>Spread Out from Y Axis</I>.</p> 29 <table> 30 <thead> 31 <tr> 32 <th>Parameters</th> 33 <th>Description</th> 34 </tr> 35 </thead> 36 <tbody> 37 <tr> 38 <th>Speed</th> 39 <td>Specifies the speed at which particles spread out from the Y axis.</td> 40 </tr> 41 </tbody> 42 </table> 43 <h4>Overview</h4> 44 <p>The figure below shows how particles spread out from the Y axis for a point-shaped emitter.</p> 45 <img class="user_guide_chart" src="assets/particleeffect_yaxis.png" alt="Spread out from y-axis"/> 46 <h3>Spread Out from Origin</h3> 47 <p>You can configure <I>Spread Out from Origin</I> from the <I>Speed</I> item on the particle set panel. Causes particles to spread out from the emitter origin.</p> 48 <h4>Feature</h4> 49 <p>You can specify the initial speed at which particles spread out from the emitter origin. The direction of emission will differ depending on the emitter shape.</p> 50 <p>The emission directions for each emitter shape are as follows.</p> 51 <table> 52 <thead> 53 <tr> 54 <th>Emitter shape</th> 55 <th>Emission direction</th> 56 </tr> 57 </thead> 58 <tbody> 59 <tr> 60 <th>Point</th> 61 <td>All directions</td> 62 </tr> 63 <tr> 64 <th>Disc</th> 65 <td>Horizontal</td> 66 </tr> 67 <tr> 68 <th>Sphere</th> 69 <td>Outwards from sphere surface</td> 70 </tr> 71 <tr> 72 <th>Cylinder</th> 73 <td>Outwards from the cylinder face (though not from the cylinder ends)</td> 74 </tr> 75 <tr> 76 <th>Rectangle</th> 77 <td>Horizontal</td> 78 </tr> 79 <tr> 80 <th>Cube</th> 81 <td>Outwards from the inside of the cube</td> 82 </tr> 83 </tbody> 84 </table> 85 <h4>Parameters</h4> 86 <p>Use the following parameters to configure <I>Spread Out from Origin</I>.</p> 87 <table> 88 <thead> 89 <tr> 90 <th>Parameters</th> 91 <th>Description</th> 92 </tr> 93 </thead> 94 <tbody> 95 <tr> 96 <th>Speed</th> 97 <td>Specifies the speed at which particles spread out from the origin.</td> 98 </tr> 99 </tbody> 100 </table> 101 <h4>Conceptual Diagram</h4> 102 <p>The figure below shows how particles spread out from the origin of a disc-shaped emitter.</p> 103 <img class="user_guide_chart" src="assets/particleeffect_origin.png" alt="Spread Out from Origin"/> 104 <h3>Random Direction</h3> 105 <p>You can configure <I>Random Direction</I> from the <I>Speed</I> item on the particle set panel. You can randomly change the initial direction and speed of a particle at the time of emission.</p> 106 <h4>Feature</h4> 107 <p>Randomly changes a particle's direction and speed. Use this to emit multiple particles in random directions, much as for <I>Spread Out from Origin</I>.</p> 108 <h4>Parameters</h4> 109 <p>Use the following parameters to configure <I>Random Direction</I>.</p> 110 <table> 111 <thead> 112 <tr> 113 <th>Parameters</th> 114 <th>Description</th> 115 </tr> 116 </thead> 117 <tbody> 118 <tr> 119 <th>Speed</th> 120 <td>Specifies the initial speed.</td> 121 </tr> 122 </tbody> 123 </table> 124 <h3>Specified Direction</h3> 125 <p>You can configure <I>Specified Direction</I> from the <I>Speed</I> item on the particle set panel. Specifies the initial direction and speed of a particle at the time of emission.</p> 126 <h4>Feature</h4> 127 <p>Gives a particle a specific direction and speed.</p> 128 <h4>Parameters</h4> 129 <p>Use the following parameters to configure <I>Specified Direction</I>.</p> 130 <table> 131 <thead> 132 <tr> 133 <th>Parameters</th> 134 <th>Description</th> 135 </tr> 136 </thead> 137 <tbody> 138 <tr> 139 <th>Direction:</th> 140 <td>Specifies the direction of movement.</td> 141 </tr> 142 <tr> 143 <th>Speed</th> 144 <td>Specifies the initial speed.</td> 145 </tr> 146 </tbody> 147 </table> 148 <h4>Conceptual Diagram</h4> 149 <p>The figure below shows a direction (X, Y, Z = 1, 1, 0) and speed (0.1) applied to a particle after emission from an emitter.</p> 150 <img class="user_guide_chart" src="assets/particleeffect_specifieddirectional.png" alt="Specified Direction"/> 151 152<h3>Specified Random Direction</h3> 153<p>You can configure <I>Random Direction</I> from the <I>Speed</I> item on the particle set panel. Particles can be made to spread out.</p> 154<h4>Feature</h4> 155<p>By setting a random value for the angle, you can make particles spread out in random directions from within the area of the conical shape versus the direction of advance of particles.</p> 156<h4>Parameters</h4> 157 <table> 158 <thead> 159 <tr> 160 <th>Parameters</th> 161 <th>Description</th> 162 </tr> 163 </thead> 164 <tbody> 165 <tr> 166 <th>Direction:</th> 167 <td>Specifies the direction of movement.</td> 168 </tr> 169 <tr> 170 <th>Speed</th> 171 <td>Specifies the initial speed.</td> 172 </tr> 173 <tr> 174 <th>Random angle</th> 175 <td>Randomly specifies the angle at which a particle should spread versus the direction of advance of the particle.</td> 176 </tr> 177 </tbody> 178 </table> 179<h4>Conceptual Diagram</h4> 180<p>The figure below shows the direction (X, Y, Z = 1, 1, 0), speed (0.1) and random angle (45) applied to the particle after emission from an emitter.</p> 181 <img class="user_guide_chart" src="assets/particleeffect_random_specifieddirectional.png" alt="Specified Random Direction"/> 182 183<h3>Randomize Results</h3> 184 <p>You can configure <I>Randomize Results</I> from the <I>Speed</I> item on the particle set panel. Randomness can be applied to the instantaneous speed (initial velocity) when a particle is generated from a emitter.</p> 185 <h4>Feature</h4> 186 <p>Randomizes the speed of particles after emission by factoring with a random value.</p> 187 <h5>Random Value Formula</h5> 188 <p class="system">Result Speed ± (Random Number × Result Speed)</p> 189 <h4>Parameters</h4> 190 <p>Use the following parameters to configure <I>Randomize Results</I>.</p> 191 <table> 192 <thead> 193 <tr> 194 <th>Parameters</th> 195 <th>Description</th> 196 </tr> 197 </thead> 198 <tbody> 199 <tr> 200 <th>Amplitude (%)</th> 201 <td>Specifies the random number ratio (0.5 in the formula)</td> 202 </tr> 203 </tbody> 204 </table> 205 <!-- InstanceEndEditable --> </div> 206 <div class="footer" /> 207</div> 208<hr><p>CONFIDENTIAL</p></body> 209<!-- InstanceEnd --></html>
