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<div class="moz-cite-prefix">On 3/27/2017 3:36 PM, Mitchell Williams
wrote:<br>
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<p class="MsoNormal"><a moz-do-not-send="true"
name="_MailEndCompose"><span style="color:#1F497D">RE: “</span></a><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">I have no idea what a Stencil Buffer is
or would do. I have not seen anything by this name. What
does this do and where/why/when would it be used?”<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">That was exactly my reaction when it came
up in a GearVR meeting.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">There is a Stencil interface, operation
and function in my handy WebGL 2 Quick Reference. So,
something exists.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">I think it is just a mask to say “render
these pixels but not in the areas it is masked out”.</span></p>
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<br>
So you think it is like a "mask" in Photoshop that restricts which
pixels (or perhaps vertices) will be processed?<br>
<br>
<br>
<div class="moz-signature">-- <br>
<font class="tahoma,arial,helvetica san serif" color="#333366">
<font size="+1"><b>Leonard Daly</b></font><br>
3D Systems & Cloud Consultant<br>
LA ACM SIGGRAPH Chair<br>
President, Daly Realism - <i>Creating the Future</i>
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