Yes, Paul: equals is the image output. ...<br><br>and the kd-tree should be equal, i summed up for each node the depth and also for the leaves. everything is equal. <br><br>/but the perf not<br><br>... i working with float for all values. i don't understand why it's not at all equal the nbr of tests. but the performance difference isn't not only that, because the difference of the nbr of test done and the performance difference are not similar. 
<br><br>*****************************************************************************<br>Visual Studio 2003<br>*****************************************************************************<br>KD-Tree...[23348:20]<br>KD-Tree Build Time      =       
0.248399s<br>   + ObjList            =     23348<br>      + Nodes           =     14139<br>        + depth sum     =     13724<br>      + Leaves          =     8049<br>        + depth sum     =     7657<br>        <br>Intersection Time       =       
0.000254502s<br>Rays                    =       1<br>Nodes Checks            =       79<br>Bounding Checks         =       122<br>Triangles Checks        =       49<br>Linehits                =       6<br>Intersection Time <osg> =       
0.0215715s<br>Linehits                =       6<br><br>SpeedUp                 =       84.7596<br><br><br>Ray Trace Time          =       3.94728s<br><br>Rays                    =       786152          (199K/s)<br>Nodes Checks            =       24806690
<br>Bounding Checks         =       49252143<br>Triangles Checks        =       16609007<br><br>Viewer...<br>Scaling image from (600,800) to (512,1024)<br><br><br><br><br><br><br>        <br>        <br><br>*****************************************************************************
<br>Visual Studio 2005<br>*****************************************************************************<br>KD-Tree...[23348:20]<br>KD-Tree Build Time      =       0.256906s<br>   + ObjList            =     23348<br>      + Nodes           =     14139
<br>        + depth sum     =     13724<br>      + Leaves          =     8049<br>        + depth sum     =     7657<br>        <br>Intersection Time       =       0.000297803s<br>Rays                    =       1<br>Nodes Checks            =       79
<br>Bounding Checks         =       122<br>Triangles Checks        =       49<br>Linehits                =       6<br>Intersection Time <osg> =       0.0203945s<br>Linehits                =       6<br><br>SpeedUp                 =       
68.4831<br><br><br>Ray Trace Time          =       4.59982s<br><br>Rays                    =       786152          (170K/s)<br>Nodes Checks            =       24806705<br>Bounding Checks         =       49252212<br>Triangles Checks        =       16608961
<br><br>Viewer...<br>Scaling image from (600,800) to (512,1024)<br><br><br><div><span class="gmail_quote">2007/10/15, Paul Melis <<a href="mailto:paul@science.uva.nl" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
paul@science.uva.nl</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Adrian Egli wrote:<br><br>> Hi all,<br>><br>> same code, allways default project settings, release, same CPU/RAM/...<br>> windows native and os/x native dual boot....<br>><br>> what you think about this !!!! results are equal, but computing time ....
<br><br>With "results" I assume you mean the image output? As the number of tree<br>nodes checked and triangles intersected is obviously not equal. Which<br>should explain at least some of the differences. Are the Kd-trees equal
<br>among the different platforms?</blockquote><div><br><br>yes i still check out the issue, and i don't understand why the kd-trees may is<br> </div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">

Paul<br><br>><br>> ************************************************************<br>> MAC OS/X XCode<br>> ************************************************************<br>> Ray Trace Time          =       2.97638s

<br>><br>> Rays                          =       787307          (264K Rays/s)<br>> Nodes Checks            =       24939199<br>> Bounding Checks        =       49512447<br>> Triangles Checks        =       16703960
<br>><br>><br>> ************************************************************<br>> Visual Studio 2003<br>> ************************************************************<br>> Ray Trace Time          =       
3.77131s<br>><br>> Rays                    =       786152          (208K/s)<br>> Nodes Checks            =       24806690<br>> Bounding Checks         =       49252143<br>> Triangles Checks        =       16609007
<br>><br>> ************************************************************<br>> Visual Studio 2005<br>> ************************************************************<br>><br>> Ray Trace Time          =       
4.62109s<br>><br>> Rays                    =       786152          (170K/s)<br>> Nodes Checks            =       24806705<br>> Bounding Checks         =       49252212<br>> Triangles Checks        =       16608961
<br>> --<br>> ********************************************<br>> Adrian Egli<br>><br>>------------------------------------------------------------------------<br>><br>>_______________________________________________
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http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org</a><br></blockquote></div><br><br clear="all"><br>-- <br>********************************************<br>Adrian Egli