EMAIL:craig610@aol.com
NAME:Craig G. Smith
TOPIC:Great Engineering Achievements
COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT.
TITLE:Scenic Dam
COUNTRY:usa
WEBPAGE:
RENDERER USED:POV-Ray (Windows)
TOOLS USED:NuGraf 2.0, Rhino Beta, Onyx Tree Pro, AutoCad
RENDER TIME: 26 hours
HARDWARE USED:Pentium 233 MHz, 128M ram.
IMAGE DESCRIPTION: Pictures of the Hoover Dam were used guide the creation
of the dam.  The spillways were added to the Hoover Dam
to make the scene more interesting.


DESCRIPTION OF HOW THIS IMAGE WAS CREATED: 
For the landscape, a DEM map of Fall River Pass in the Rocky Mountain
National Park was used, obtained from ftp://spectrum.xerox.com/pub/map/dem
(40105D7.dem.z).  Nugraf supports DEM import.
The trees were generated and colored using Onyx Tree Professional.
The dam, lake and sailboat were created using the beta version of Rhino,
and output as 3ds(polygons) or IGES(for NURBS) format. 
The glider was done in AutoCad, and imported into Nugraf as DXF.
Scene composition was done in NuGraf, and objects exported into POV as
smooth triangles. 

Texturing was subsequently done in POV, as the U/V implicit mapping used
in NuGraf doesn't translate.  The landscape texture is a 256 value 
y-gradient color map with turbulence, scaled and translated in the y direction.

Going this route has pros and cons.  The Scene composition in NuGraf is
much easier than in POV.  However, with all the POV code as smooth triangles,
the code size for this scene, 480,000 frame level objects, is 70 meg.  Peak 
memory usage for the rendering was 250 meg.

The rendering used +AM2 +A0.1 command line options.