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<p class="MsoNormal"><a 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”.<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">Not sure the value of a stencil buffer over defining a texture map, sending it to the Fragment Shader as a way to say render some of these pixels, but not others.<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">Thanks for the help.<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">Mitch<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#595959">Mitch Williams<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:gray">Samsung GearVR X3D development<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:gray">310-809-4836 (outside line)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:windowtext">From:</span></b><span style="color:windowtext"> x3d-public [mailto:x3d-public-bounces@web3d.org]
<b>On Behalf Of </b>Leonard Daly<br>
<b>Sent:</b> Monday, March 27, 2017 3:27 PM<br>
<b>To:</b> x3d-public@web3d.org<br>
<b>Subject:</b> Re: [x3d-public] X3D Stencil Buffer defined?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Mitch,<span style="font-size:12.0pt"><o:p></o:p></span></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Is there <Stencil Buffer> node (or similar) defined in X3D, either part of the language, or someone such as X3Dom added it?<o:p></o:p></p>
</blockquote>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><br>
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?<br>
<br>
Leonard Daly<br>
<br>
<br>
<br>
<o:p></o:p></span></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">We are looking at implementing this in GearVR.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="color:#595959">Mitch Williams</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:gray">Samsung GearVR X3D development</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:gray">310-809-4836 (outside line)</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><br>
<br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>x3d-public mailing list<o:p></o:p></pre>
<pre><a href="mailto:x3d-public@web3d.org">x3d-public@web3d.org</a><o:p></o:p></pre>
<pre><a href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a><o:p></o:p></pre>
</blockquote>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif">--
<br>
</span><b><span style="font-size:13.5pt;font-family:"Times New Roman",serif;color:#333366">Leonard Daly</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#333366"><br>
3D Systems & Cloud Consultant<br>
LA ACM SIGGRAPH Chair<br>
President, Daly Realism - <i>Creating the Future</i> </span><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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