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	<id>https://wiki.povray.org/content?action=history&amp;feed=atom&amp;title=Reference%3ASpiral2_Pattern</id>
	<title>Reference:Spiral2 Pattern - Revision history</title>
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	<updated>2026-04-03T20:33:33Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.povray.org/content?title=Reference:Spiral2_Pattern&amp;diff=8314&amp;oldid=prev</id>
		<title>Le Forgeron at 09:49, 1 March 2014</title>
		<link rel="alternate" type="text/html" href="https://wiki.povray.org/content?title=Reference:Spiral2_Pattern&amp;diff=8314&amp;oldid=prev"/>
		<updated>2014-03-01T09:49:29Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&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&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 09:49, 1 March 2014&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l29&quot; &gt;Line 29:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 29:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&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;optional.&amp;lt;/p&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&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;optional.&amp;lt;/p&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&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;&amp;lt;p class=&amp;quot;Note&amp;quot;&amp;gt;&amp;lt;strong&amp;gt;Note:&amp;lt;/strong&amp;gt; The comma is required especially if &amp;lt;em&amp;gt;Bump_Size&amp;lt;/em&amp;gt; is negative. The pattern uses the &amp;lt;code&amp;gt;triangle_wave&amp;lt;/code&amp;gt; wave type by default but may use any wave type.&amp;lt;/p&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&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;&amp;lt;p class=&amp;quot;Note&amp;quot;&amp;gt;&amp;lt;strong&amp;gt;Note:&amp;lt;/strong&amp;gt; The comma is required especially if &amp;lt;em&amp;gt;Bump_Size&amp;lt;/em&amp;gt; is negative. The pattern uses the &amp;lt;code&amp;gt;triangle_wave&amp;lt;/code&amp;gt; wave type by default but may use any wave type.&amp;lt;/p&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;table class=&amp;quot;centered&amp;quot; width=&amp;quot;420px&amp;quot; cellpadding=&amp;quot;0&amp;quot; cellspacing=&amp;quot;10&amp;quot;&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;tr&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;  &amp;lt;td&amp;gt;[[Image:RefImgSpiral2Pigment.png|center|200px&amp;lt;!--centered---&amp;gt;]]&amp;lt;/td&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;  &amp;lt;td&amp;gt;[[Image:RefImgSpiral2Normal.png|center|200px&amp;lt;!--centered---&amp;gt;]]&amp;lt;/td&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/tr&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;tr&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;  &amp;lt;td colspan=&amp;quot;2&amp;quot;&amp;gt;&amp;lt;p class=&amp;quot;caption&amp;quot;&amp;gt;spiral2 pattern used as pigment and normal respectively&amp;lt;/p&amp;gt;&amp;lt;/td&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/tr&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/table&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Le Forgeron</name></author>
	</entry>
	<entry>
		<id>https://wiki.povray.org/content?title=Reference:Spiral2_Pattern&amp;diff=7046&amp;oldid=prev</id>
		<title>Jholsenback: 1 revision: Reference Migration Initial Load</title>
		<link rel="alternate" type="text/html" href="https://wiki.povray.org/content?title=Reference:Spiral2_Pattern&amp;diff=7046&amp;oldid=prev"/>
		<updated>2012-03-15T19:08:51Z</updated>

		<summary type="html">&lt;p&gt;1 revision: Reference Migration Initial Load&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left diff-editfont-monospace&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:08, 15 March 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Jholsenback</name></author>
	</entry>
	<entry>
		<id>https://wiki.povray.org/content?title=Reference:Spiral2_Pattern&amp;diff=7045&amp;oldid=prev</id>
		<title>Jholsenback: 1 revision: Initial Load (TF)</title>
		<link rel="alternate" type="text/html" href="https://wiki.povray.org/content?title=Reference:Spiral2_Pattern&amp;diff=7045&amp;oldid=prev"/>
		<updated>2012-03-11T22:28:09Z</updated>

		<summary type="html">&lt;p&gt;1 revision: Initial Load (TF)&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[Category:Patterns]]&lt;br /&gt;
{{#indexentry:spiral2, keyword}}&lt;br /&gt;
{{#indexentry:spiral2, pattern}}&lt;br /&gt;
{{#indexentry:keyword, spiral2}}&lt;br /&gt;
{{#indexentry:pattern, spiral2}}&lt;br /&gt;
&amp;lt;p&amp;gt;The &amp;lt;code&amp;gt;spiral2&amp;lt;/code&amp;gt; pattern creates a double spiral that winds around&lt;br /&gt;
the z-axis similar to &amp;lt;code&amp;gt;spiral1&amp;lt;/code&amp;gt; except that it has two overlapping spirals&lt;br /&gt;
which twist in opposite directions. The result sometimes looks like a basket&lt;br /&gt;
weave or perhaps the skin of pineapple. The center of a sunflower also has a&lt;br /&gt;
similar double spiral pattern. Its syntax is:&amp;lt;/p&amp;gt;&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
pigment {&lt;br /&gt;
  spiral2 Number_of_Arms&lt;br /&gt;
  [PIGMENT_MODIFIERS...]&lt;br /&gt;
  }&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;p&amp;gt;The &amp;lt;em&amp;gt;&amp;lt;code&amp;gt;Number_of_Arms&amp;lt;/code&amp;gt;&amp;lt;/em&amp;gt; value determines how may arms are&lt;br /&gt;
winding around the z-axis. As a normal pattern, the syntax is&amp;lt;/p&amp;gt;&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
normal {&lt;br /&gt;
  spiral2 Number_of_Arms [, Bump_Size]&lt;br /&gt;
  [NORMAL_MODIFIERS...]&lt;br /&gt;
  }&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;p&amp;gt;where the &amp;lt;code&amp;gt;Number_of_Arms&amp;lt;/code&amp;gt; value is a required&lt;br /&gt;
parameter but the float &amp;lt;em&amp;gt;&amp;lt;code&amp;gt;Bump_Size&amp;lt;/code&amp;gt;&amp;lt;/em&amp;gt; which follows is&lt;br /&gt;
optional.&amp;lt;/p&amp;gt;&lt;br /&gt;
&amp;lt;p class=&amp;quot;Note&amp;quot;&amp;gt;&amp;lt;strong&amp;gt;Note:&amp;lt;/strong&amp;gt; The comma is required especially if &amp;lt;em&amp;gt;Bump_Size&amp;lt;/em&amp;gt; is negative. The pattern uses the &amp;lt;code&amp;gt;triangle_wave&amp;lt;/code&amp;gt; wave type by default but may use any wave type.&amp;lt;/p&amp;gt;&lt;/div&gt;</summary>
		<author><name>Jholsenback</name></author>
	</entry>
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