TITLE: Eve was here
NAME: Mikko Oksalahti
COUNTRY: Finland
EMAIL: mikko.oksalahti@dosetek.varian.com
WEBPAGE: http://www.frends.com/mikko
TOPIC: Nature
COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT.
JPGFILE: evesbite.jpg
ZIPFILE: evesbite.zip
RENDERER USED: 
    Povray 3

TOOLS USED: 
    C prog.lang., Microsoft's Image Composer and Paint

RENDER TIME: 
    14 days 17 hours and 37 minutes

HARDWARE USED: 
    2*Pentium 200Mhz 256Mb Ram


IMAGE DESCRIPTION: 


A moist apple on a blue reflecting surface. My goal was to make 
a simple scene that could be mistaken for a real photograph of 
an apple.


DESCRIPTION OF HOW THIS IMAGE WAS CREATED: 


The apple is simply a torus (or two toruses, one for the surface and
another for the inside). The part that has been cut out is a height 
field based on a image I draw with a Paint program and prosessed 
with Image Composer.

The texture of the apple is a three-layered texture with varying 
levels of bumps on them. One layer has very small bumps to give a 
rough appearence. One layer has bigger bumps to give a uneven appearence. 
The bottom layer is a simple specular texture to give the basic light 
reflection. Each layer uses the same hand drawn image map for color.

For the droplets of water I wrote a small C program that places
the droplets (i.e. spheres) on the surface of the torus. There are 
all together 2500 droplets, though roughly half of them are inside the 
apple and thus not visible.

For the added realism I used Povray's spot area light, antialiasing
and focal blur. I payed a big price for that: The rendering took so
much time that I had no possibility to do it more than once. I'm not
happy with the droplets' texture, the apple's image map of the bite's
shape but I could correct them since there was no time to render the 
scene again.

The scene has two lights: the main spot area light in the upper left 
direction and another dim point light at camera location. I've noticed 
that placing a dim light at camera location and using no ambient 
parameter gives a more pleasent ambient lighting that using the flat 
ambient parameter.

