<div style="white-space:pre-wrap">Hello list,<br><br> I'm wondering if anyone has done performance testing on the new VAO support in 3.6? I'm using 3.4 and see a significant performance hit when turning on the GL3 flags and using VBO's, As a test I restored call list support and saw a significant performance improvement vs the VBO path. But still slower then the non gl3 pipeline. ( Some of these settings are embedded in the saved ive file which makes it a bit harder to test different code paths.) But OSG seems to be enabling and disabling lots of VBO attributes and doesn't particularly draw stuff in a way that's optimized to have the minimal number of attribute changes.<br><br>I've also added a Material UBO which seems a reasonable replacement for the existing attribute which uses deprecated functionality. But it's not clear how to do this cleanly. And would need that UBO to be added to all shaders.<br> It's still unclear to me how enabling gl3 should work. Shader generation doesn't automatically happen and there's really very little rendering out of the box.<br>Gedalia<br></div><div dir="ltr" class="gmail_msg"><br class="gmail_msg"><div class="gmail_msg"><div class="gmail_msg"><div class="gmail_msg"><div class="gmail_extra gmail_msg">-- <br class="gmail_msg"><div class="m_1665441978858545649gmail_signature gmail_msg" data-smartmail="gmail_signature"><div dir="ltr" class="gmail_msg">DI-Guy Engineering Lead, <span style="font-family:arial,sans-serif;background-color:rgb(255,255,255)" class="gmail_msg"><span style="font-size:9pt;line-height:13px;color:black" class="gmail_msg">VT MÄK</span></span><br class="gmail_msg"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)" class="gmail_msg">150 Cambridge Park Drive, </span><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)" class="gmail_msg">3rd Floor, </span><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)" class="gmail_msg">Cambridge, MA 02140</span><span style="font-family:arial,sans-serif;background-color:rgb(255,255,255)" class="gmail_msg"><br class="gmail_msg"></span><br class="gmail_msg"></div></div>
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