Erik Søe Sørensen wrote:
Here's to hoping :-)
But, what we need now, then, is any cloud-generator whatever (free to
use, preferably fast)?
I must admit that I was a bit disappointed when I saw the clouds turned
on... especially given how much they cost :-) They seem to be just
blur, like turning the fertility map on.
I think this is because only one color tone is used, with varying alpha
(is this right?).
:(
yes it is. to get nice structured clouds i guess the only option is to use
prerendered ones like we had before.
i thought perlin was the answer to get really dynamic clouds and was frustrated
when i saw how expensive it was. perlin clouds like in your screen shot would
need a far finer scale of structures.
now we render blocks of 32x32 pixels i guess but still you can see steps some
times (what is due to some bug maybe).
i did maths so i would have plenty of ideas to make the clouds prettier and more
structured but it gets too expensive even now.
(a=f(x,y,t), r=g=b=sin(t)*df/dx+cos(t)*df/dy+128 to get clouds lit from a
wandering sun. as nobody knows how shadows are drawn on a torus with a sun, this
should maybe not be done using sin/cos ;)
http://www.daimi.au.dk/~eriksoe/misc/cloud1.png
http://www.daimi.au.dk/~eriksoe/misc/cloud2-glob2.png
these pix are about what you would get when choosing finer grain perlin noise.
greetings, leo wandersleb
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