Thanks for the answer. I literally just opened up the project to try and track down the issue. I am glad I check my email first! I will apply the patch you submit to my local repository and test it as soon as its available.
Have you managed to get the cuda code path working with nvtt? I saw no difference in performance when I rebuilt with cuda support so I am guessing it wasn't being used. Cheers, Brad -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Fabien Lavignotte Sent: Monday, 11 October 2010 4:02 PM To: OpenSceneGraph Users Subject: Re: [osg-users] New nvtt based compression in VPB Hi Brad, I just check the code, in fact it does not work when using --terrain, only with --polygonal. I am submitting a fix to Robert. Cheers, Fabien -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Christiansen, Brad Sent: dimanche 10 octobre 2010 07:02 To: OpenSceneGraph Users Subject: [osg-users] New nvtt based compression in VPB Hi, I have just completed a build of VPB using the new nvtt code path. Everything thing seems to have compiled and linked ok and VPB still works. The issue I am seeing is that the resulting textures arnt compressed. Some processing is definitely being done as using --RGBA-compressed or -compressed-dxt5 results in my test build taking 4 times longer than using --RGBA. The resulting dds images are not compressed at all though. Using RGBA-compressed result in RGBA images and DXT5 results in RGB images (determined using nvtt nvddsinfo). I will try and track down what is going on but it seems very odd. Has anyone had success with this new code path? I am running: Windows 7 64 bit VS 2009 SP1 64 bit builds OSG, VPB and nvtt (and gdal) were all compiled from source using the latest versions. Cheers, Brad DISCLAIMER:------------------------------------------------------------- -------------- This e-mail transmission and any documents, files and previous e-mail messages attached to it are private and confidential. They may contain proprietary or copyright material or information that is subject to legal professional privilege. 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