On Tuesday 22 March 2011 11:29:04 Vivian Meazza wrote: Vivian, > > OK - here's what I have discovered: > > XnView converts to .dds, and doesn't require flipping, but AFAIKS it > doesn't generate mipmaps either. > > The Gimp (with the dds plug-in) does require that the image is flipped > vertically, but it does generate mipmaps. > > Either way I can observe no discernable difference in quality or > performance using a 1024 x 1024 texture on my current .ac model. However, > I haven't carried out any quantative tests. All very interesting, but I'm > not sure how to proceed now. Back to .rgb perhaps? > > Vivian Compare livery loading time, between a .png (or .rgb), and .dds livery. You can also notice decreased texture blurring at extreme angles (probably due to better mipmap generation from .dds, or better quality pregenerated mipmaps embeded in the .dds). The most noticeable quality improvement is on normalmaps, so if you're not using any you won't notice it.. take a look here for a simple comparison of the same normalmp texture (once loaded as .png and then as .dds):
http://flightgear.org/forums/viewtopic.php?p=118547&sid=b3fd401bbab73e70d3b4031ec1c02030#p118547 ------------------------------------------------------------------------------ Enable your software for Intel(R) Active Management Technology to meet the growing manageability and security demands of your customers. Businesses are taking advantage of Intel(R) vPro (TM) technology - will your software be a part of the solution? Download the Intel(R) Manageability Checker today! http://p.sf.net/sfu/intel-dev2devmar _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
