<div dir="ltr">I think if you could describe more of your problem domain, we might have better suggestions. Like, what do all of these geometries actually represent? I know you're trying to generalize the problem, but sometimes knowing the specifics of the problem allows us to make domain-specific suggestions.<div><br></div><div>Like, sometimes the question is "how do I make my axe cut faster" but the real answer is "here, use a chainsaw instead".</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 2, 2020 at 4:48 PM OpenSceneGraph Users <<a href="mailto:osg-users@lists.openscenegraph.org">osg-users@lists.openscenegraph.org</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><br></div><div>I found a reasonably good generic solution to flatten any part of my scene graph.<br></div><div>- Use a visitor pattern to collect all my osg::Geometry into a set of geometries starting at the osg::Group in question<br></div><div>- do a clone of the geometries into a new set with (osg::CopyOp::DEEP_COPY_PRIMITIVES | osg::CopyOp::DEEP_COPY_ARRAYS) , then add them into a new osg::Group for the optimizer to work with.<br></div><div>- Use a osgUtil::MergeGeometryVisitor to collect all the primitive sets</div><div>- Then an osgUtil::IndexMeshVisitor to merge the primitive sets<br></div><div><br></div><br>On Sunday, March 1, 2020 at 9:07:42 AM UTC-8, AndrewC wrote:<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>Hi,<br></div><div>I was wondering what the best practices are for dealing with a complex scene graph where a single osg::Group might have , say, 5000 children where each child is fairly simple osg::Geom geometry. Clearly, this is inefficient and draws slowly.<br></div><div>So obviously, compiling/collecting the geometry into one drawable would be much more efficient. osgUtil::Optimizer does not seem to do this for me, or am I missing something?</div><div><br></div><div>Andrew<br></div></div></blockquote></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div style="text-align:center">Chris 'Xenon' Hanson, omo sanza lettere. Xenon@AlphaPixel.com <a href="http://www.alphapixel.com/" target="_blank">http://www.alphapixel.com/</a></div><div style="text-align:center">Training • Consulting • Contracting</div><div style="text-align:center">3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL</div><div style="text-align:center"><span style="font-size:12.8px">Legal/IP •</span><span style="font-size:12.8px"> </span><span style="font-size:12.8px">Forensics •</span><span style="font-size:12.8px"> </span>Imaging <span style="font-size:12.8px">•</span><span style="font-size:12.8px"> </span><span style="font-size:12.8px">UAVs </span><span style="font-size:12.8px">• GIS • GPS • osgEarth • Terrain • Telemetry • Cryptography • LIDAR • Embedded • Mobile • iPhone/iPad/iOS • Android</span></div><div style="text-align:center"><a href="https://twitter.com/alphapixel" target="_blank">@alphapixel</a> <a href="http://facebook.com/alphapixel" target="_blank">facebook.com/alphapixel</a> (775) 623-PIXL [7495]<br></div></div></div></div></div></div>
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