Hi Robert, Yes. I am using 3.2.3 since I got a problem to show image in the center on 3.4 (My program is using MFC). Then I used 3.2.3.
Regards, Clement ________________________________________ From: osg-users [osg-users-boun...@lists.openscenegraph.org] on behalf of Robert Osfield [robert.osfi...@gmail.com] Sent: Monday, 17 August 2015 17:06 To: OpenSceneGraph Users Subject: Re: [osg-users] Volume image crash on the latest version of Nvidia driver HI Clement, Curious... but what I don't understand is how the Intel compiler was progressing on to the if (num_iteration!=num_iterators) as this should only be run on NVidia cards thank to the #idef NVIDIA_Corportion guard around it, Are you backporting the shaders to 3,2,x? Robert. On 17 August 2015 at 07:33, <clement....@csiro.au<mailto:clement....@csiro.au>> wrote: Hi Robert, I got funny volume display problem on intel card (it lost some opacity values). I checked the shader code and I found the problem on handling NaN with using if statement. Your code is : " if (num_iterations<min_iterations) num_iterations = min_iterations;\n" " else if (num_iterations>max_iterations) num_iterations = max_iterations;\n" " else if (num_iterations!=num_iterations) num_iterations = max_iterations;\n" I checked NaN on wiki https://en.wikipedia.org/wiki/NaN. The non-signaling value won't do standard comparison, so I changed the code as below. " if (num_iterations!=num_iterations) num_iterations = max_iterations;\n" " else if (num_iterations<min_iterations) num_iterations = min_iterations;\n" " else if (num_iterations>max_iterations) num_iterations = max_iterations;\n" Check the value whether it is NaN on first condition and it works as normal on intel card now. Regards, Clement ________________________________________ From: osg-users [osg-users-boun...@lists.openscenegraph.org<mailto:osg-users-boun...@lists.openscenegraph.org>] on behalf of Robert Osfield [robert.osfi...@gmail.com<mailto:robert.osfi...@gmail.com>] Sent: Wednesday, 12 August 2015 23:58 To: OpenSceneGraph Users Subject: Re: [osg-users] Volume image crash on the latest version of Nvidia driver On 12 August 2015 at 14:47, <clement....@csiro.au<mailto:clement....@csiro.au<mailto:clement....@csiro.au>>> wrote: Hi Robert, I have tested on both Intel and Nvidia machines. The solution works without any issue. Thanks. I have applied this fix to OSG-svn/trunk, OSG-3.2.3 and OSG-3.4.0 so we should now be good to go. Robert. _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org<mailto:osg-users@lists.openscenegraph.org> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
