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<p class="MsoNormal">No, I have still need the built-in matrices. I know those get updated.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-M<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">----------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Marlin Rowley<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Software Engineer, Staff<o:p></o:p></span></p>
<p class="MsoNormal"><img width="156" height="40" style="width:1.625in;height:.4166in" id="Picture_x0020_1" src="cid:image001.jpg@01D3D0D3.1E501D00" alt="cid:image002.jpg@01D39374.DEC5A2E0"><span style="font-size:10.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D">Missiles and Fire Control</span></i><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">972-603-1931 (office)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">214-926-0622 (mobile)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><a href="mailto:marlin.r.rowley@lmco.com"><span style="color:#0563C1">marlin.r.rowley@lmco.com</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>From:</b> osg-users [mailto:osg-users-bounces@lists.openscenegraph.org]
<b>On Behalf Of </b>Robert Osfield<br>
<b>Sent:</b> Tuesday, April 10, 2018 11:53 AM<br>
<b>To:</b> OpenSceneGraph Users <osg-users@lists.openscenegraph.org><br>
<b>Subject:</b> EXTERNAL: Re: [osg-users] Getting a callback to update shaders?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On 10 April 2018 at 16:55, Rowley, Marlin R <<a href="mailto:marlin.r.rowley@lmco.com" target="_blank">marlin.r.rowley@lmco.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Nevermind. I figured out that I need to update the shader state variables on every refresh. I thought that an initial binding was all that was needed, but they have to be “Set”
every frame.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">It all depends what data you are needing to pass to the shader via uniforms. The OSG provides standard replacements for the likes of gl_ModelViewMatrix automatically as osg_ModelViewMatrix etc. if you enable it via osg::State. See the
osgsimplegl3 example.<o:p></o:p></p>
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<p class="MsoNormal">Robert. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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