TITLE: Contrition

NAME: Robert Lee
COUNTRY: USA

EMAIL: rclee@oklahoma.net
WEBPAGE: None

TOPIC: Loneliness
COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT.
JPGFILE: david.jpg
ZIPFILE: david.zip
RENDERER USED: 
    POVRay 3.5


TOOLS USED: 
    hamaPatch, Graph Paper, IrfanView, Little Grey Cells


RENDER TIME: 
    Approximately 2.5 hours


HARDWARE USED: 
    Pentium 500 MHz, Windows 98 with screen saver
turned off, render priority highest, and GUI priority minimum



IMAGE DESCRIPTION: 
    The pungent aroma of incense fills the air as David,
King of Israel, pleads for his firstborn's life from an adjacent hallway.



DESCRIPTION OF HOW THIS IMAGE WAS CREATED: 


This is my first submission to the IRTC.  I appreciate your comments.

Most elements of this scene use standard textures from POVRay 3.5.
The vase is a surface of revolution, the picture is a bitmap I found on 
the Internet, and there is a BlobMan under the robe.

I would like to thank Tom Aust for developing TomTree and Peter Houston 
for developing BlobMan 4.2. All individuals who make utility files such 
as these available perform a valuable service.

The robe was modeled in hamaPatch.  It contains a burlap texture, found
on the Internet, and was uv mapped to the surface.  

The rug consists of 2 boxes.  The first box borrowed color maps and other
elements from one of the POVRay 3.5 wood textures to form the fringe.  A
second box was laid over the fringe box, colored and textured.

The censor was constructed using CSG.  A cylinder base, 4 cylinder side
supports, and a fire pan were joined together.  The fire pan is 1/2 of a
hollow sphere which holds emission media.  The fire pan also holds a
smaller hemisphere textured as the glowing coals.  The smoke above the 
censor is a scaled down cloud I am working on for landscapes made up of
both emission and scattering media.

The entire room is filled with scattering media which interacts with
the single spotlight that illuminates the figure.

This scene is quite dark and I had a hard time getting the lighting 
right. There are 4 light sources.  One white area spotlight for the figure,
another point source of dim yellow light over the censor that falls off in
intensity with distance, another dim yellow spotlight in front of the door
pointing towards the vase, and a yellow light under the door.

Because the scene was so dark, it was hard to get the light on the walls to look
good.  I tried radiosity but it did not help.  When I added a dim
ambient yellow light to global settings, the scene lit up like magic.

After lighting the scene, the door and rug were still quite dark so a tad 
of ambient light was added to improve their visibility. 

I had to use anti-aliasing settings of +a0.1 +am2 +r3 to clean up an 
interference pattern on the bitmap picture.

The image is meant to be dark and it is difficult to know exactly how to set the
contrast and brightness. The mood I am after is achieved when the image is
viewed in a dark room with the monitor brightness and contrast set so that the
wood grain on the floor, away from the spotlight, is just visible.