<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">Hi Robert,</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">I've tried to reproduce the issue with a minimal example, without success so far, even though the essential bits should be the same.</div><div class="gmail_default" style="font-family:tahoma,sans-serif">I'm also thinking it might have something to do with the data variance of the affected geometries, I'll double check.</div><div class="gmail_default" style="font-family:tahoma,sans-serif">If I find something I'll report back here,</div><div class="gmail_default" style="font-family:tahoma,sans-serif">Thanks,</div><div class="gmail_default" style="font-family:tahoma,sans-serif">Riccardo</div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px"><div><span style="color:rgb(153,153,153);font-size:small;font-family:arial,helvetica,sans-serif"><b>Riccardo Corsi</b> </span><span style="color:rgb(153,153,153);font-family:arial,helvetica,sans-serif;font-size:small">co-founder, </span><span style="color:rgb(153,153,153);font-size:small;font-family:arial,helvetica,sans-serif">software e</span><span style="color:rgb(153,153,153);font-family:arial,helvetica,sans-serif;font-size:small">ngineering</span></div><div><span style="font-family:arial,helvetica,sans-serif"><font size="2" color="#999999"><b>Kairos3D srl</b> </font></span><span style="color:rgb(153,153,153);font-size:small;font-family:arial,helvetica,sans-serif">Via Agostino da Montefeltro 2, 10134 Torino Italy</span></div></div><div style="font-size:12.8px"><font size="2" color="#999999"><b style="font-family:arial,helvetica,sans-serif">T</b><font face="arial, helvetica, sans-serif"> +390113157111 </font><b style="font-family:arial,helvetica,sans-serif">M</b><font face="arial, helvetica, sans-serif"> +393288522785</font></font></div><div style="font-size:12.8px"><font size="2" color="#999999"><font face="arial, helvetica, sans-serif"><br></font></font></div><div><span style="color:rgb(153,153,153);font-family:tahoma,sans-serif"></span><span style="color:rgb(153,153,153);font-family:arial,helvetica,sans-serif">This e-mail is confidential and intended only for the use of the above named addressee. If you have received this e-mail in error, please delete it immediately and notify us by e-mail or telephone.</span><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jan 7, 2021 at 6:45 PM Robert Osfield <<a href="mailto:robert.osfield@gmail.com">robert.osfield@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr">Hi Ricard,<br></div><div><br></div><div>Both the RTT Camera and the main Camera should both be traversed in the cull traversal within the same frame and accumulated modelview matrices cached in the rendering backend to sent to the GPU as part of the draw traversal together. Ordinarily this system should prevent problems like your describe as the rendering backend is double buffered so that the cull writes to the currently recording frames rendering backend, while the draw traverses the previous rendering backend structures.</div><div><br></div><div>The behaviour you describe makes it seem like some state is being modified across the frames, I don't have your app or data so can't say what this might be. The best I can suggest is to investigate what state seems to be changed inappropriately. It might be that you need to double buffer the state that is being updated whilst it's being used for rendering.<br></div><div><br></div><div>Robert<br></div><div><br></div></div>
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