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	<id>https://wiki.pymol.org/index.php?action=history&amp;feed=atom&amp;title=Ray_trace_gain</id>
	<title>Ray trace gain - Revision history</title>
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	<updated>2026-06-15T07:33:34Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.pymol.org/index.php?title=Ray_trace_gain&amp;diff=10014&amp;oldid=prev</id>
		<title>Bell: 1 revision</title>
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		<updated>2014-03-28T03:53:15Z</updated>

		<summary type="html">&lt;p&gt;1 revision&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;= Overview =&lt;br /&gt;
When ray tracing, PyMOL knows the Z-depth of coordinates.  The [[ray_trace_gain]] setting darkens pixels based on their Z-depth.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;gallery&amp;gt;&lt;br /&gt;
Image:Ray trace gain0.png|ray_trace_gain,0&lt;br /&gt;
Image:Ray trace gain2.png|ray_trace_gain,2&lt;br /&gt;
Image:Ray trace gain8.png|ray_trace_gain,8&lt;br /&gt;
Image:Ray trace gain20.png|ray_trace_gain,20&lt;br /&gt;
&amp;lt;/gallery&amp;gt;&lt;br /&gt;
&lt;br /&gt;
= Syntax =&lt;br /&gt;
&amp;lt;source lang=&amp;quot;python&amp;quot;&amp;gt;&lt;br /&gt;
# set it&lt;br /&gt;
set ray_trace_gain, 7&lt;br /&gt;
&lt;br /&gt;
# you need to ray trace the image to see it&lt;br /&gt;
ray&lt;br /&gt;
&amp;lt;/source&amp;gt;&lt;br /&gt;
&lt;br /&gt;
= See Also =&lt;br /&gt;
[[ray]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Settings]]&lt;/div&gt;</summary>
		<author><name>Bell</name></author>
	</entry>
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