Hi Stacho, I also have a NVidia card in my computer! Does it help if I send you the output from the compilling? Can it be that it has to do with the changed Makefile (removed -lvtkjpeg -lvtkpng -lktkzlib)?
Greetings Wolfgang Stacho Mudrak wrote: > I am almost sure this is not the case on Linux system - it was (still > is???) a limitation of Win32 OpenGL. But loch does this interpolation > internally - it scales every image to a square 2^n pixel size, before it > use it as a texture. > > I do not know where the problem on Linux is - it has probably something > to do with Linux OpenGL architecture - on both other platforms (Win32 > and Mac OS X), texture mapping works as expected. And it works on Linux > also - at home I have NVidia OpenGL driver (with NVidia OpenGL shared > library) and there it works also. > > OK, I will try to install some plain Linux without hardware acceleration > and debug it. > > Regards, S. > > Philip Schuchardt wrote: > >> I think I explained it wrong??? >> >> Your image dimesion needs to be a factor of 2. >> >> Examples: >> overlay.png has a dimesion of 128x128 or >> overlay2.png has a dimesion of 512x256 >> >> Is that what your doing? >> >> You can easily re-scale the images using gimp. >> >> Philip Schuchardt >> >> On Sunday 15 April 2007 4:55 pm, Wolfgang Zillig wrote: >> >>> it does not change much: it is still gray but in some cases strange >>> triangles occur. >>> >>> I've tested 0.5 2 4 and 8 as factors. But with 8x the limits of my >>> computer seem to be almost reached. >>> >>> Any other ideas? >>> Greetings >>> Wolfgang >>> >>> PS: I'm using 0.5.0 v of therion. Has something changed in the >>> development version? >>> >>> Philip Schuchardt wrote: >>> >>>> You have interpolate the pixel graphics. >>>> >>>> On Sunday 15 April 2007 4:13 pm, Wolfgang Zillig wrote: >>>> >>>>> Hi Philip, >>>>> >>>>> what do I have to do? Interpolating the pixel graphic or changing >>>>> something in my .th file? >>>>> >>>>> Greetings >>>>> Wolfgang >>>>> >>>>> Philip Schuchardt wrote: >>>>> >>>>>> Ahh. The linux version of loch has a bug preventing rendering correct >>>>>> texture mapping. I think it has to do with openGL problem factor of 2 >>>>>> texture mapping. The textures dimensions need to be a factor of 2. >>>>>> I'm just guessing that this is the problem. Try to re-scale your >>>>>> overlay to be a factor of 2(1, 2, 8, 16, 32, 64, 128 ... etc). Tell us >>>>>> if it works. >>>>>> >>>>>> Philip Schuchardt >>>>>> >>>>>> On Sunday 15 April 2007 3:30 pm, Wolfgang Zillig wrote: >>>>>> >>>>>>> I had to adapt the path to vtk and remove -lvtkjpeg -lvtkpng -lktkzlib >>>>>>> from the makefile. (the terminal was not configured to scroll through >>>>>>> so many lines and therefore I did not see the uppermost error) . There >>>>>>> were a lot of warnings like: "warning: dereferencing type-punned >>>>>>> pointer will break strict-aliasing rules" during compillation. If >>>>>>> needed I can send you the full screen output. >>>>>>> >>>>>>> I can compile my project but the surface graphic is missing! Only a >>>>>>> gray surface is displayed. Is this due to the skipped parameter >>>>>>> -lvtkjpeg? Do I need to compile vtk from sources? I've installed >>>>>>> libvtk5 and libvtk5-dev (5.0.2-4ubuntu1). >>>>>>> >>>>>>> Thanks for any help >>>>>>> Wolfgang >>>>>>> >>>>>>> Stacho Mudrak wrote: >>>>>>> >>>>>>>> I am not sure, but probably loch compilation does not work by >>>>>>>> default. List of libraries needed for loch is at loch/README. >>>>>>>> >>>>>>>> Regards, S. >>>>>>>> >>>>>>>> Wolfgang Zillig wrote: >>>>>>>> >>>>>>>>> Hi, >>>>>>>>> >>>>>>>>> is there somewhere a list with all the libraries that are needed to >>>>>>>>> compile therion under linux? Or a kind of manual? >>>>>>>>> >>>>>>>>> I just tried "make" but I'm getting errors, so I suppose that I miss >>>>>>>>> some libraries. >>>>>>>>> >>>>>>>>> Greetings >>>>>>>>> Wolfgang >>>>>>>>> _______________________________________________ >>>>>>>>> Therion mailing list >>>>>>>>> Therion at speleo.sk >>>>>>>>> http://www.speleo.sk/mailman/listinfo/therion >>>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> Therion mailing list >>>>>>>> Therion at speleo.sk >>>>>>>> http://www.speleo.sk/mailman/listinfo/therion >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> Therion mailing list >>>>>>> Therion at speleo.sk >>>>>>> http://www.speleo.sk/mailman/listinfo/therion >>>>>>> >>>>>> _______________________________________________ >>>>>> Therion mailing list >>>>>> Therion at speleo.sk >>>>>> http://www.speleo.sk/mailman/listinfo/therion >>>>>> >>>>> _______________________________________________ >>>>> Therion mailing list >>>>> Therion at speleo.sk >>>>> http://www.speleo.sk/mailman/listinfo/therion >>>>> >>> _______________________________________________ >>> Therion mailing list >>> Therion at speleo.sk >>> http://www.speleo.sk/mailman/listinfo/therion >>> >> _______________________________________________ >> Therion mailing list >> Therion at speleo.sk >> http://www.speleo.sk/mailman/listinfo/therion >> >> > _______________________________________________ > Therion mailing list > Therion at speleo.sk > http://www.speleo.sk/mailman/listinfo/therion >
