On Tuesday, February 05, 2013 08:17:43 Renk Thorsten wrote: > 2) Flickering in water > > http://www.flightgear.org/forums/viewtopic.php?f=68&t=18924&start=15#p176001 > > With the sun in the back, under some conditions a strange flickering in the > water can be observed. Dialling down the amount of direct light, I could > verify that these are light reflections, they go away when no direct light > is available, although they appear unnaturally large and blocky. > > What bothers me is: > > * I have never before observed this flickering, I did hundreds of test > flights under all possible conditions, I've looked at water from altitude > ranges of zero to suborbital, I have logged several hours of flights over > open water since I last changed the shader. Under Windows I have a 1 1/2 > months old binary in which I am 99% sure the problem does not occur there, > although it occurs on recent GIT. > > * I have not changed the shader code or effect code for more than 3 months > > So this would indicate that the problem was caused by some other > developement and slipped in. Does anyone have an idea as to what this could > have been? Were there any changes to the water shader files / normal maps/ > textures in the default rendering scheme (the Atmospheric Light Scattering > version uses the same files)? Or to the effect files? Could the ATI hack > have done something weird? Any ideas welcome, I have no good plan of attack > for this yet. > > Thanks, > > * Thorsten
Cannot reproduce here on today's GIT. Given the intermitent nature of it, I have a possible culprit (but you're not going to like it): -try with the texture fetches outside of the conditionals, see if you (or the reporter) can still reproduce it. Emilian ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
