> The direct link to the merge request is usually handy. Will do next time.
> Effects/terrain-default.eff has two techniques number 4. They seem > similar > > Could you check ? Aarg... GIT strikes again. The two blocks with technique 4 are identical copies - one of them can go. Must be my screwup in merging the file... > One short comment on the shaders, texture lookups inside branches gives > undefined results, so any texture2D() call should be pulled outside the > branches. > (http://hacksoflife.blogspot.com/2011/01/derivatives-ii-conditional- > texture.html) Thank you for the info - that's good to know (although admittedly I have to do some reading trying to understand what 'that' precisely is - the linked article is a bit opaque for me). Seems there's a lot to learn about the hidden secrets of GLSL... Since this doesn't look like a crippling issue (it seems to work on my card just fine, it potentially affects only higher detail settings,...) I would like to take the time and understand what is going on before making any changes. The reason is that things end up in conditionals usually because I tested them to have better performance, so just pulling them out would degrade performance again. The article seems to suggest a different syntax to do conditional texture lookup inside an if clause, so I would like to look into that and compare performance in some benchmarks. I would also be intersted if anyone is actually seeing any texturing artefacts (should be mainly the snow effect) caused by the issue, so that I can see if I implemented a fix correctly, because on my system it's running fine as it is. Thanks, * Thorsten ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
