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9<title>Particle Emitter Settings</title>
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15  <h1>Particle Emitter Settings</h1>
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17  <h2>Particle Emitter Settings</h2>
18  <h3>Particle Emission Volume</h3>
19  <p>This specifies the number of particles emitted from a particle emitter in a single frame. For values where 0 ≥ x &gt; 1, that value is added to each frame, and once it reaches 1, a particle is emitted.</p>
20  <p>The following figure shows the particle emission timing based on an example in which the emission volume is 0.75 and the emission interval is 1.</p>
21  <img class="user_guide_chart" src="assets/particleeffect_emission_volume.png" alt="Particle Emission Volume"/>
22  <h4>Emission Volume Animation (currently not supported)</h4>
23  <p>This is an emission volume animation. The animation is created based on the particle emitter's timeline.</p>
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25  <h4>Random Emission Volume</h4>
26  <p>You can also configure for random particle emission volume.</p>
27  <h5>Formulas</h5>
28  <p class="system">Emission Volume ± (Random Value × Emission Volume)</p>
29  <h6>Examples</h6>
30  <p>For an emission volume of 10 and a randomness of 50%, this equation would be <CODE>10 + ((Random value between 0.5 and 0.5) × 10)</CODE>, producing particle emission volume varying between 5 and 15.</p
31  >
32  <h3>Particle Emission Time</h3>
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34  <p>The <I>particle emission time</I> is when the particle emitter emits particles.</p>
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36  <p>The figure below compares particle emitter settings for <I>particle emission volume of 1, an emission interval of 20 frames, and with infinite emission time set to On and Off</I>. When infinite particle emission time is set to <I>Off</I>, <I>the emission time is specified at 50 frames</I>.</p>
37  <img class="user_guide_chart" src="assets/particleeffect_emittertime.png" alt="Particle Emitter Time"/>
38  <p>Details for the above settings:<br />When <I>Infinite is set to On</I>, the particle emitter continues to emit particles every 20 frames, emitting 5 particles over 80 frames.<br /> When <I>Infinite is set to Off</I>, the particle emitter emits particles every 20 frames, but since the emission time was specified as 50 frames, only 3 particles are emitted over 80 frames.</p>
39  <h5>Particle Emission Time Settings</h5>
40  <table>
41    <thead>
42      <tr>
43        <th>Setting</th>
44        <th>Parameters</th>
45      </tr>
46    </thead>
47    <tbody>
48      <tr>
49        <th>Emission Interval</th>
50        <td> Specifies the interval at which the particle emitter emits particles.</td>
51      </tr>
52      <tr>
53        <th>Emission Time</th>
54        <td>Specifies the time duration during which the particle emitter emits particles.<br /> When <I>Infinite is set to On</I>, the emission time is infinite.<br /> When <I>Infinite is set to Off</I>, <I>you can specify the emission time as a number of frames</I>.</td>
55      </tr>
56    </tbody>
57  </table>
58  <h3>Particle Emission Interval</h3>
59  <p>This specifies the time interval from one particle emission to the next. Specified as a number of frames from 0 to 100.</p>
60  <h4>Random Emission Intervals</h4>
61  <p>You can also specify a random interval between particle emission.</p>
62  <h5>Formulas</h5>
63  <p class="system">Number of Frames Specified as the Emission Interval ± (Random Value × Number of Frames Specified as the Emission Interval)</p>
64  <h6>Examples</h6>
65  <p>For an emission interval frame count of 10 and a randomness of 50%, this equation would be <CODE>10 + ((Random value between 0.5 and 0.5) × 10)</CODE>, producing particle emission intervals varying between 5 and 15.</p>
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