TITLE: Ericeira NAME: Francois Dispot COUNTRY: France EMAIL: wozzeck@club-internet.fr WEBPAGE: http://www.wozzeck.net TOPIC: The Sea COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT. JPGFILE: ericeira.jpg ZIPFILE: ericeira.zip RENDERER USED: PvMegaPOV 0.5a TOOLS USED: XEmacs 21.1, Terraform 0.7.2, J. Vives' clouds macro, Gilles Tran's window and chair macros, blobman 4.2, gimp 1.1.22 RENDER TIME: 6h 17 HARDWARE USED: p200 + dual PII/448 under Linux 2.2.x and pvm 3.4.2 (see below) IMAGE DESCRIPTION: An idea I had about a year ago, mixing several observations from different beaches and weathers in Portugal with the absurd world it is supposed to belong to. This picture will be part of my "Germain Landfelder Official Calendar", and will stand near a related (French) text as usual. DESCRIPTION OF HOW THIS IMAGE WAS CREATED: This picture is AFAIK the first one made with a cluster and successfully using Povray's radiosity. I used it as a real life test for my port of Megapov to PVM. Although the test renderings were usually made using both computers at once, the final rendering uses too much memory, and I had to drop my p200, The final rendering was made using only 2 processors. The resulting speed is about 185% of a single processor speed. The remote coast, sea and cloudscape were created using well known tools and macros, while I wanted to concentrate on the beach itself, keeping the whole at an acceptable memory level for a distributed rendering. The scene, especially for the beach, makes an intensive use of macros, random generators, and the extremely useful trace() function. There are several levels of detail for the objects on the beach, especially blob-men, to save memory. Blob men are very convenient for this kind of scenes where details are limited but characters must look like acceptable humanoids.