<html><head></head><body><p dir="ltr">Thanks. Any suggestion how to know this?</p>
<br><br><div class="gmail_quote">On 13. Juli 2018 21:27:30 MESZ, Julien Valentin <julienvalentin51@gmail.com> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail">Indeed...<br /><br />wernerM wrote:<br /><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"> B.T.W. Is there any way of doing the culling in Tesselation- or<br /> Geometry-Shader?<br /> In this case I need to know if the vertices are visible or not.<br /> <br /> Am 13.07.2018 um 18:51 schrieb Robert Osfield:<br /> <br /><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #ad7fa8; padding-left: 1ex;"> Hi Werner,<br /> <br /> The best way to handle the vertex shader moving geometry to new<br /> locations is to use a custom osg::DrawableComputeBoundingBoxCallback<br /> that you assign the the drawable that you are using for instancing.<br /> You'll want to return a BoundingBox that encompasses all the positions<br /> that the transformed geometries can occupy.<br /> <br /> Robert.<br /> On Fri, 13 Jul 2018 at 17:44, Werner Modenbach<br /> <> wrote:<br
/> <br
/><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #8ae234; padding-left: 1ex;"> Hi all,<br /> <br /> maybe someone has some inspiration for me.<br /> I have a scene graph where the same object (plenty of vertices) is drawn<br /> in many instances.<br /> Each instance gets an offset matrix to move the object to some place.<br /> If I do the rendering without instances the culling removes those<br /> objects from the draw list that are not visible.<br /> Is there any way to implement such culling also with instances?<br /> I think I need to remove the invisible matrices from the list and reduce<br /> the number of instances somehow.<br /> <br /> Any idea where to do it?<br /> <br /> Thanks<br /> <br /> - Werner -<br /> <br /> <br /><hr /><br /> osg-users mailing list<br /> <br /> <a href="http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org">http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org</a
><br />
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