Hi Paul,
From: Paul Surgeon <[EMAIL PROTECTED]>
On Sunday 15 January 2006 10:25, dene maxwell wrote:
> Hi Paul, to my way of thinking the resolution is not important.
Pythagarus
> is more important, the distance as seen in a birds-eye view as seen by
FGSD
> is not the distance of the terrain. Hence if you cut a material to a
> birds-eye distance of say 10 what ever units it will be stretched to say
> 14.14 units when the slope is 45 degrees. The greater the slope the
larger
> the slope distortion, in the nth degree a vertical slope will have zero
> length stretched to infinite length.
>
> Dene
What I mean is that from a "top down" view you need to increase the
resolution
of textures on the slopes so that when you look at the slope from a
perpendicular angle you still get the same resolution as on flat ground.
Example :
If a flat piece of ground has a texture resolution of 1m/pixel then a slope
of
45 degrees should also have a texture resolution of 1m/pixel if you look at
it from a perpendicular perspective.
agreed
A 45 degree slope viewed from the *top* should have a texture resolution of
0.707 m/pixel. So from a "top down" view the texture resolution will be
higher. This will "unstretch" those slope textures.
Paul
this certainly seems to follow the geometric logic. One problem...it doesn't
seem to work.
Without being familiar with the code concerned, my impression is that this
logic is not being applied in a way that produces the desired result or
something very important is being over looked in the logic. Perhaps applying
this sinusoidal algorithm is the problem, why not try giving all
perspectives a 1m/pixel view and see if the result is more pleasing? This
might aleast give some idea where the observed stretching is
occurring....yeah?
Dene
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