TITLE: newday
NAME: Bernd Sieker
COUNTRY: Germany
EMAIL: bsieker@techfak.uni-bielefeld.de
WEBPAGE: http://psybert.uni-bielefeld.de/~bsieker/
TOPIC: Night
COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT.
JPGFILE: newday.jpg
ZIPFILE: newday.zip
RENDERER USED: 
    Real3D V3.5

TOOLS USED: 
    The Gimp, NetPBM

RENDER TIME: 
    ca. 10h

HARDWARE USED: 
    Amiga 4000, MC68040-40, 58 MB RAM.


IMAGE DESCRIPTION: 


The image shows a house front on a dark street, lit by street lamps.
Small patches of light stream through the window blinds and on the wall
is a poster that talks about "Dreaming of a New Day".


DESCRIPTION OF HOW THIS IMAGE WAS CREATED: 


Everything was done with CSG, except the poster, which is a spline mesh.

The Image on the poster was also rendered in Real3D; the landscape on
it is based on an earlier scene, but the clouds, the moon, the stars
and the ripples on the water were created especially for this poster
scene. The captions were added in the Gimp.

The brick texture was on the Real3D CD, and I derived a bump map from
that in the Gimp.

The wood textures are also from the Real3D CD. All other textures were
hand-made with the Gimp.

Adjusting lighting and rendering settings took longer than most of the
actual modelling. The main "trick" for creating the right atmosphere
was to use differently coloured lights. The street lamp casting very
"cold" light are slightly blueish, while the doorlamp is a little
yellowish and the light streaming through the blinds and making
brighter patches on the sidewalk are even yellower.

Only the one half of the roof that is facing the viewer is actually
covered with tiles, the other half is open. The roof tiles are not a
bump map but all tiles are individual objects. This was neccessary
since the roof is viewed from such a low angle.

The street lamp light sources are spot lights with a very wide opening
angle and a soft-edge, that makes the light cone fade towards the
edges.

All light sources are local light sources, meaning that they fade to
intensity 0 at a certain distance, speeding up rendering a little.

To make the fine vertical structures on the name plaque visible I had
to use 2-times forced supersampling in x-direction, in addition to a
high AA-level (i. e. low threshold and high maximum supersampling),
y-direction required no forced super-sampling.

The email address tag was added and the image was converted to JPEG
with the Gimp.

For size reasons the zip file does not include the texture maps, if
you are interested in them, email me.