Am Donnerstag, den 08.04.2010, 00:13 +0100 schrieb Stuart Buchanan: > Hi All, > > I've just updated the c172p to make use of the bumpspec Effect for a > bump-map. I've still to get the rivet separation right, but the effect > so far is rather pleasing: > > http://www.nanjika.co.uk/flightgear/fgfs-screen-004.png > > Like most of the other shader effects, this looks better in-sim than > in a screenshot. In particular the rivets on the cowling when viewed > from the cockpit are rather nice when turning. > > I've also written a wiki article to help others interested in using > this shader: > http://wiki.flightgear.org/index.php/Howto:_Use_The_Normal_Map_Effect_in_Aircraft > > I'm interested in other people's performance experience with this > shader. The normal maps are rather large, though they compress down > very well. > I've tested a bit and noticed that regarding size, the resolution of the normalmap doesn't matter. An image of 4096x4096 has nearly the same size than a 2048x2048 scaled version of the same image (which looks rather ugly in-sim btw,). However this is the case when the image is scaled before applying the normalmap filter. If the resulting normalmap gets scaled, the smaller resolution image is even larger in filesize than the original.
The striking thing with using the shader is that it is now possible to have smaller image files for liveries as now only the colour is needed. Details can now be done in the shader. This reduces the lag while selecting different liveries. Greetings > -Stuart > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel -- Detlef Faber http://www.sol2500.net/flightgear ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
