Re: [Plib-devel] texture repeating

[Curtis L. O. <cu...@me...>]

> "Curtis L. Olson" wrote:
> > In ssg is there a way to control whether a texture is set to "repeat"
> > or not?

Steve Baker writes:
> Sure - that's the second and third parameters of
> ssgSimpleState::setTexture(). 

Ahah, your a genius!  Whups, make that "you're".

> A classic problem - which setting non-repeating clamps will cure
> completely.

Yes, setting the wrapu / wrapv to FALSE totally fixed this particular
problem.  But it didn't help with the mipmap bluring when viewing my
runways from edge on ... or the problem where different sections of
the runway with different textures can't always have the same ft/pixel
ratio so the mipmapping choices don't always blend nicely from one
section to the next.

Runways are hard to get looking nice ... :-(

FYI, here's what I've got so far (as viewed from a mipmap friendly
vantage point)

    http://www.menet.umn.edu/~curt/fgfs/Gallery/Link/kmsp-runway.html

> Joining two textures is a harder problem...for which I wrote a FAQ:
>    http://web2.airmail.net/sjbaker1/tiling_textures.html

It's probably obvious to everyone (and now to myself as well) that you
also need to have a consistant ft/pixel ratio along the edge you are
matching... this could be something worth mentioning in the FAQ.
 
> It's all rather disappointing for the purist though.

This whole mipmapping scheme sucks for edge on runways which is the
view you see them at 95% of the time ... generating "squat" textures
(more resolution cross-wise than length-wise) helps a lot but still
leaves a *lot* to be desired. :-(

Curt.
-- 
Curtis Olson   Human Factors Research Lab       Flight Gear Project
Twin Cities    cu...@hf...                cu...@fl...
Minnesota      http://www.menet.umn.edu/~curt   http://www.flightgear.org