Could this be a matter of perspective? The urban material looks great when
it's on a flat piece of terrain and viewed from above. In the instances I
referred to, the terrain is viewed largely from a side on perspective. Maybe
it only looks wierd because you're seeing the roof of a building when the
brain expects to see walls and windows?
This also brings up the issue of having material that has a top and a bottom
(the roofs always go to the uphill side).
The other issue that I should imagine is effecting particularly your rocky
terrain I can relate to my fathers farm. Its on the top of a hill and from
the maps, covers 35acres. the only problem is it has a 300ft elevation
difference from top to bottom so if it were laid out flat would be more like
60 acres.
In flightgear, if I create a square tile (or ease of illustration) of 10 x
14.14 units and incline it at 45 degrees along the 14.14 dimension, it
suddenly comes 10 x 10 when viewed from above. Now we come to put the
material on it. Do we use a 10x10 or 10x14.14 chunk of material?
Is this new or have you guys thrashed this out and know why (above) but are
stuck on the how to fix it?
From what I can see,
1) material will not only need need properties (top/bottom etc). But if I
view the same inclined tile from above as opposed to side on, the material
may need to change (ie from windows and walls to rooftops)
2) when fitting material to terrain the angle of the terrain needs to be
taken into account eg so 10x10 isn't stretched to try and cover what is in
reality 10x 14.14
Cheers
Dene
From: Martin Spott <[EMAIL PROTECTED]>
Reply-To: [email protected]
To: [email protected]
Subject: Re: [Flightgear-devel] Will my updates be used/useful?
Date: Sat, 14 Jan 2006 21:43:08 +0000 (UTC)
"dene maxwell" wrote:
> One thing I have noticed, we have alot of urban areas on very steep hill
> sides. This "draping" approach can cause some very unpleasant visual
effects
> in these instances...the terrain looks ...stretched... like drawing a
> picture on a piece of rubber then stretching it more in one direction
than
> the other, the picture becomes distorted. Have you noticed this?
Sure we do :-) If you have a clever concept of how to deal with these
cases I'd be ahppy to hear.
Regards,
Martin.
--
Unix _IS_ user friendly - it's just selective about who its friends are !
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