Re: [Flightgear-devel] New scenery

[Renk T. <tho...@jy...>]

> Without deferred shading, I was planning on using polygon_offset, and
> precomputed geometry for roads, and streams.  These could be put under
> their own lod node.

Well, if anyone could confirm that roads, rails & co drive the vertex count up significantly as compared to the terrain mesh, then a fairly easy solution would be to render them via a 'road' effect that puts all expensive stuff into the fragment shader, because surely the ratio of vertices per pixel is rather high for distant roads, much higher than for terrain, and it's this ratio which in my experience plays a large part in whether deferred rendering is an advantage or not.

That'd also allow to keep them partially free of snow in winter, give them a wet appearance like the runway effect and not do any overlay texturing on them - so it has quite some additional benefits to bump them off the generic terrain shader.

I think I'll just try that.

* Thorsten