EMAIL: bobfranke@halcyon.com NAME: Bob Franke TOPIC: Great Engineering Achievements COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT. TITLE: Cathedral COUNTRY: USA WEBPAGE: http://www.halcyon.com/wordsltd/pov/pov.htm RENDERER USED: Povray 3.02 TOOLS USED: POV editor, PhotoStyler, Keith Rule's Wcvt2pov, Poser, personal photos of cathedrals and The book... Cathedral - The Story of Its Construction by David Macaulay RENDER TIME: 12 hours 7 minutes (anti-aliasing at 0.2) HARDWARE USED: Pentium-133 48MB IMAGE DESCRIPTION: The engineering, construction and craftsmanship of the medieval gothic cathedrals is amazing. The construction of these great structures often consumed all the resources of the local people for 15 to 50 years. Some took as long as 200 years to complete. Often the people attending the first services were the grandchildren of those who laid the foundation. A notable engineering achievement of cathedral design was the innovation of the flying buttress. This allowed the main piers to be quite thin in proportion to their height, allowing more space for the very large windows. In my cathedral, we are standing near the south center of the building, looking west, down the nave, to the front door. The scale is realistic. The nave is 60 feet wide and it's 150 feet to the center of vaulted ceiling. DESCRIPTION OF HOW THIS IMAGE WAS CREATED: The scene has over 21000 objects, about 6000 are for the Poser man. I used patches for the banners and vaulted ceiling. The image maps for the banners were done with Photostyler. The rest is made with lots of boxes and cylinders with a few tori and spheres. The construction is completely closed with most of the light coming through the windows. Although originally lighted with sunlight and candles, I have added some modern electric lighting. The walls on each side of the are 120 feet tall with large windows in the upper half. Thirty feet to each side of the nave there are 65 foot tall walls, again with large windows. The Poser man, aparrently a tourist posing for a picture, was added to better show off the grand scale of the building. Wcvt2pov was used to convert the Poser file to POV. To save space, it is not included. Well, that's about it... hope you like it, Bob