HB-GRAL wrote
>
> HB-GRAL schrieb:
> >
> > When I want to have more different croplands how should I go further
> > with the crop shader? Building different crop.png's and cropcolors? How
> > can I alter this textures/ornaments for cropland terrain? And is it also
> > possible to add a relief/normalmap to crop?
> >
> > Thanks- gral
> >
>
> Sorry for my crop conclusion. I see now how I can change crop texture
> and 'colormap' to get another look with the shader. Here is test example
> http://tinyurl.com/2uez5ar
>
> The problem with the random blobs still remains. Also the snow level at
> 2000 meters in the summer and that some textures/landclasses are not
> covered by snow (like glacier).
>
> Thanks, Yves
>
The grey patches are not snow - they denote steep areas; perhaps rock, or a
rock run. They are generated in crop.frag by:
//"steep = gray"
c1 = mix(vec4(n-0.42, n-0.44, n-0.51, 1.0), c1, smoothstep(0.970,
0.990, abs(normalize(Normal).z)+nvL[2]*1.3));
//"snow"
c1 = mix(c1, clamp(n+nvL[2]*4.1+vec4(0.1, 0.1, nvL[2]*2.2, 1.0),
0.7, 1.0), smoothstep(snowlevel+300.0, snowlevel+360.0,
(rawpos.z)+nvL[1]*3000.0));
not a bug but a feature :-)
Vivian
p.s. not my code btw
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