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	<id>https://newgrf-specs.tt-wiki.net/index.php?action=history&amp;feed=atom&amp;title=Callback%3A_Advanced_effect_creation</id>
	<title>Callback: Advanced effect creation - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://newgrf-specs.tt-wiki.net/index.php?action=history&amp;feed=atom&amp;title=Callback%3A_Advanced_effect_creation"/>
	<link rel="alternate" type="text/html" href="https://newgrf-specs.tt-wiki.net/index.php?title=Callback:_Advanced_effect_creation&amp;action=history"/>
	<updated>2026-04-30T19:37:31Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.43.8</generator>
	<entry>
		<id>https://newgrf-specs.tt-wiki.net/index.php?title=Callback:_Advanced_effect_creation&amp;diff=3550&amp;oldid=prev</id>
		<title>Frosch: /* Advanced effect creation (160) */</title>
		<link rel="alternate" type="text/html" href="https://newgrf-specs.tt-wiki.net/index.php?title=Callback:_Advanced_effect_creation&amp;diff=3550&amp;oldid=prev"/>
		<updated>2014-08-23T13:48:18Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Advanced effect creation (160)&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:48, 23 August 2014&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;| 0-7 || Effect&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;| 0-7 || Effect&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* 00: Normal visual effect when driving.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* 00: Normal visual effect when driving.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* 01-FF: Reserved&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, must be masked.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* 01-FF: Reserved&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|-&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;|-&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;| 8-31 || Reserved, must be masked.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;| 8-31 || Reserved, must be masked.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Frosch</name></author>
	</entry>
	<entry>
		<id>https://newgrf-specs.tt-wiki.net/index.php?title=Callback:_Advanced_effect_creation&amp;diff=3549&amp;oldid=prev</id>
		<title>Frosch: /* Advanced effect creation (160) */</title>
		<link rel="alternate" type="text/html" href="https://newgrf-specs.tt-wiki.net/index.php?title=Callback:_Advanced_effect_creation&amp;diff=3549&amp;oldid=prev"/>
		<updated>2014-08-23T13:45:46Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Advanced effect creation (160)&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 13:45, 23 August 2014&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 44:&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 44:&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* F2: Default &#039;diesel&#039; effect.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* F2: Default &#039;diesel&#039; effect.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* F3: Default &#039;electric&#039; effect.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* F3: Default &#039;electric&#039; effect.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* F4-&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;F5&lt;/del&gt;: Reserved&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* F4-&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;F9&lt;/ins&gt;: Reserved&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* F6: Default &#039;breakdown smoke&#039; effect.&lt;/div&gt;&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-added&quot;&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* F7-F9: Reserved&lt;/div&gt;&lt;/td&gt;
  &lt;td colspan=&quot;2&quot; class=&quot;diff-empty diff-side-added&quot;&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* FA: Default &#039;broken aircraft&#039; effect.&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* FA: Default &#039;broken aircraft&#039; effect.&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* FB-FE: Reserved&lt;/div&gt;&lt;/td&gt;
  &lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;
  &lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* FB-FE: Reserved&lt;/div&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Frosch</name></author>
	</entry>
	<entry>
		<id>https://newgrf-specs.tt-wiki.net/index.php?title=Callback:_Advanced_effect_creation&amp;diff=3547&amp;oldid=prev</id>
		<title>Frosch: created</title>
		<link rel="alternate" type="text/html" href="https://newgrf-specs.tt-wiki.net/index.php?title=Callback:_Advanced_effect_creation&amp;diff=3547&amp;oldid=prev"/>
		<updated>2014-08-17T15:17:27Z</updated>

		<summary type="html">&lt;p&gt;created&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;== Advanced effect creation (160) ==&lt;br /&gt;
{{ottdp|1.5|no|ottdrev=r26747}}&lt;br /&gt;
&lt;br /&gt;
This callback is used when advanced visual effects are enabled via the Visual Effect properties resp. [[Callbacks#Visual_effect_and_wagon_power_.2810.29|Callback 10]].&lt;br /&gt;
&lt;br /&gt;
The callback is called whenever the effect spawning model issues the vehicle to generate a visual effect.&lt;br /&gt;
This callback then decides the position, amount and looks of the visual effect.&lt;br /&gt;
&lt;br /&gt;
Variable 10 specifies what type of visual effect to generate:&lt;br /&gt;
{| |-&lt;br /&gt;
! Bits !! Meaning&lt;br /&gt;
|-&lt;br /&gt;
| 0-7 || Effect&lt;br /&gt;
* 00: Normal visual effect when driving.&lt;br /&gt;
* 01-FF: Reserved, must be masked.&lt;br /&gt;
|-&lt;br /&gt;
| 8-31 || Reserved, must be masked.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
Variable 18 contains 32 random bits.&lt;br /&gt;
&lt;br /&gt;
If the callback fails, no visual effect is created.&lt;br /&gt;
Otherwise the result consists of:&lt;br /&gt;
{| |-&lt;br /&gt;
! Bits !! Meaning&lt;br /&gt;
|-&lt;br /&gt;
| 0-1 || Amount of effects to spawn (0 to 3), details are specified via register 100+x&lt;br /&gt;
|-&lt;br /&gt;
| 2-12 || Reserved, must be set to zero.&lt;br /&gt;
|-&lt;br /&gt;
| 13 || Train and RV only: If set, position effect relative to vehicle center instead of relative to vehicle sprite. (behaves the same for vehicles with length 8/8) &lt;br /&gt;
|-&lt;br /&gt;
| 14 || If set, disable auto-rotation of effect position wrt. vehicle orientation.&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
Registers 100+x define the appearance of the x-th effect (amount specified via callback result):&lt;br /&gt;
{| |-&lt;br /&gt;
! Bits !! Meaning&lt;br /&gt;
|-&lt;br /&gt;
| 0-7 || Effect type&lt;br /&gt;
* 00-EF: Reserved&lt;br /&gt;
* F0: Reserved&lt;br /&gt;
* F1: Default &amp;#039;steam&amp;#039; effect.&lt;br /&gt;
* F2: Default &amp;#039;diesel&amp;#039; effect.&lt;br /&gt;
* F3: Default &amp;#039;electric&amp;#039; effect.&lt;br /&gt;
* F4-F5: Reserved&lt;br /&gt;
* F6: Default &amp;#039;breakdown smoke&amp;#039; effect.&lt;br /&gt;
* F7-F9: Reserved&lt;br /&gt;
* FA: Default &amp;#039;broken aircraft&amp;#039; effect.&lt;br /&gt;
* FB-FE: Reserved&lt;br /&gt;
* FF: No effect.&lt;br /&gt;
|-&lt;br /&gt;
| 8-15 || &lt;br /&gt;
* If result bit 14 is cleared: Longitudinal position (signed)&lt;br /&gt;
* If result bit 14 is set: X position (signed)&lt;br /&gt;
|-&lt;br /&gt;
| 16-23 ||&lt;br /&gt;
* If result bit 14 is cleared: Transversal position (signed)&lt;br /&gt;
* If result bit 14 is set: Y position (signed)&lt;br /&gt;
|-&lt;br /&gt;
| 24-31 || Z position (signed)&lt;br /&gt;
|}&lt;/div&gt;</summary>
		<author><name>Frosch</name></author>
	</entry>
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