TITLE: Dawn in Marocco
NAME: Ulf Schreiber
COUNTRY: Germany
EMAIL: ulf.schreiber@gmx.net
WEBPAGE: http://www.fen.baynet.de/ulf.schreiber/
TOPIC: Water
COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT.
JPGFILE: dawnsidi.jpg
ZIPFILE: dawnsidi.zip
RENDERER USED: 
    Povray 3.1 W95


TOOLS USED: 
    Leveller, Minesweeper (the scene was full of mines, especially
                      the HFs output from Leveller did not stop exploding!)
         

RENDER TIME: 



HARDWARE USED: 
    K6/250 oc'ed,
            (i486/33 for blind-writing the cactus-macros and also first testing
of that - at least a DX with FPU) 


IMAGE DESCRIPTION: 


Waking up, it's getting too warm to sleep in the sleeping-bag - MUHAAAAH - where
am I? 
Yes, north of Marakech, near the well of that nice Berber farmer family that
invited us last evening.
Time for my good-morning-photo. Opening the bag with the money and so on wrapped
to my left leg, 
taking out the camera. Nice view with the well and the Atlas Mountains far away
in the clear air.
Wait what's coming there? The cows getting their morning water.

.
w
a
i
t
.

>CLICK<

As the obvious scene for "Water" consist mainly of a well tuned reflecting
texture with excessive use
of finish{normal}, and I'm surely not the best at simulating fluids, I decided
to do something _about_
water, not water itself (I hope this behavior is not some disease - compare my
entry in "Nature").
Still influenced from my tour around Marocco this summer, I decided to trace
something from that. 
- Water and Africa, that's good.

P.S.
The scene did not happen exactly like this when I was down in Marocco this
summer, but all those 
things did take place. At least I have a photo from one morning (already out of
the sleeping-bag, so
no knee in the left lower corner) from the well of the family. The cows passed
when it was _not_ too
hot to sleep ;-)


DESCRIPTION OF HOW THIS IMAGE WAS CREATED: 


Photographed in Africa!
Backwards-raytracing with natural tools (like space, the sun, air molekules as
atmosphere.. :)

I started with modelling the cows. Really. And I wasted very, very much time on
it... They consist of 
a doubled heightfield (Leveller, certainly), like old tin toys. Same with the
legs, the head is 
classical blob.
The landscape is obvious - more heightfields (The mountain chain in the south is
one heightfield, 
repeated about ten times. But how did I make the mountains fade?
(hint: it's not atmosphere, interior or fog, look close!)
Semitransparent mirrors, with a texture map using the new cylinder pattern, the
mountains themselves
are behind the cam (due to problems with overlapping of the mountains and
reflections of the close hf).
The cactusses are a simple recursive #macro, luckily these grow that simple in
nature.
The sleeping-bag (that lilac object in the lower right corner) is HF again, with
2 blended normals
applied.
The sky sphere has really many textures over each other and is completely
symmetrical to the xy-plane
(needed for the mountan-fading method)

