Happy New Year everyone. Apologies for not replying sooner - I got caught up in updating the a4.
Thorsten Renk wrote: > Okay, I;m taking your and Stuart's feedback then as input to draft a plan > (and I do hope for 3.0 then rather than 2.12). > > The 'classic' terrain rendering could then be organized into quality levels > as follows: > > 0) - default skydome, all shader effects off > 1) - atmospheric light scattering on, no terrain shader effects, only one > base texture per terrain type is loaded > 2) - atmospheric light scattering on, up to three textures per landclass > (base, de-tiling/gradient, hires overlay), > some 8 procedural noise frequencies, terrain pixel postprocessing (snow, > dust, wetness,...) > 3) - atmospheric light scattering on, up to 6 textures per landclass (base, > de-tiling/gradient1, hires overlay, > gradient2, grain overlay, hires dot-noise overlay), full spectrum of > procedural Perlin and sparse dot noise frequencies, > terrain pixel postprocessing > > That'd be one shader per quality level, which is doable to maintain, because > these are ubershaders, so there's > no need to maintain too many distinct terrain effect shaders (currently we > would have runway, airport grass cover, > water and urban in addition - I'm still toying with the idea of writing a > fully procedural rock shader though...). Also, > I can then simplify the structure of the shader code to remove conditionals. That sounds like an excellent plan. Let me know how I can help. <snip> > What is also lost is the inverse slope transition (this effect changes for > instance a 'Rock' landclass to grass or forest > appearance if the terrain is not sloped, giving flat mountaintops a grass > cover). I dropped this intentionally, because it > makes the strong assumption that Rock can only exist on steep slopes - > inverse slope changes rock on Alaskan > coastline to forests for instance, also open flat rock can exist in desert > areas. I'm happy with losing this. I can think of lots of areas of Scotland with "Rock" on horizontal surfaces. -Stuart ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. ON SALE this month only -- learn more at: http://p.sf.net/sfu/learnmore_123012 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
