EMAIL:gerritvn@osi.co.za NAME:Daniel van Niekerk TOPIC:Alien Summer COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT. RENDERER USED:Polyray v.1.8 TOOLS USED:Preprocessors : Blobwin,CSD; City,Pipe,coral,texgen (Own small utilities--freely available); //If anybody wants them or if you have ideas or code ,please call me RENDER TIME: 6 Hours HARDWARE USED: Pentium 100 mHz with Mathco IMAGE DESCRIPTION: The aliens on Faffel have a nice time when it is summer.(Once every 25 earth-years) and they really enjoy themselves on what can be described in earthly terms as the beach.Glassy hotels overlook the prime beach with mottled sand,and it is also a renowned diving spot,as can be seen from the submobile inspecting some indigenous seaweed.Water is abundant on this planet,so the ocean is a permanent feature.Consequently,there are a number of interesting plants and sponges,namely the glass-spunge and the ribbed spunge that dwell here. On land,gaint Cactii dominate the scene,but,in contrast to Earth,they are Tropical plants,lush and evergreen, and a much sought_after delicacy. To the left of it is part of a Gyro-go-round (The equivalent of "Merry-go-rounds") where little Faffanians can tumble and roll for minellia on end.Ultra high windspeeds in the upper atmosphere distorts the clouds to a rushing conglomerate,but it is not enough to block out the intense Gamma-radiation.All the beachcombers therefore have a X-ray and Gamma-ray protecting umbrella. DESCRIPTION OF HOW THIS IMAGE WAS CREATED: The basic sand and sea are height functions,the sea being transparent and both having color_maps.I wrote a few small utilities to create the buildings,the pipes and the random textures on the umbrellas.The Cactii are scaled spheres with a noisy normal,The gyroscope torii and spheres, and the submarine utilizes spheres and bezier patches(as propellar-fins). These,and the patches used in the umbrellas,where created by writing coordinates on graph-paper,inputting them,and changing them to fit. (A long and tedious procedure :> ) The colormaps's colors where mainly created with CSD,and edited until satisfying.The "coral" was created by a simple program I wrote.The rocks were made by using Blobwin,first "creating" a wall,and then later "distoting" it to look like natural rock. The spunges are spherical height fields.The submarines lamps are colored lights(+-the same color of the sea) enclosed by transparent cones with a noisey color-map. My methology for creating this was firstly to get the basic idea of what I wanted to do (changed several times).I then modeled each object rather seperatedly in a template file,before including them.For thesting,I used wireframe rendering to see the objects,and used solid matte colors to speeden things up. I found that,To the extent that I could visualize something and "see" it's position,I could quickly make advances.The most time was wasted when I tried to render the picture from close up,with all the include files included and busy placing the objects initially. The city,for example,was first created by two simple programs and then I used these Modules to build up the city,implementing codes,a paper and pen for their relative positions.I think that what,for me,gives the best effect,is when a picture is drawn a lot of times,something "unexpected" pops up,and I like it so much that it is part of the next "version" of my image,instead of being erased as a mistake. Over and above everything,raytracing gives my creative side a oppurtunity to develop and express itself-->and my geometry improves ;>