EMAIL:gerritvn@osi.co.za NAME:Danie van Niekerk TOPIC: Time COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT. RENDERER USED: Polyray v.1.8 TOOLS USED: "SWEEP" for wormhole's basic structure CSD for colours,various text-editors for the input file, My own text-to-blob utility written in Pascal RENDER TIME: 90 Minutes (In total) HARDWARE USED: Pentium 100 Mhz with Mathco and SVGA,standard mouse & keyboard IMAGE DESCRIPTION: Time-and the relativity of it,as shown by an imaginary picture of a "wormhole" (or black hole). The space-time-lines are distorted around it, and time is "drawn out" at the event horison.Although the "time" is identical everywhere,the perception of it, at different points,is relative to your viewpoint-the effects of this distortion has an outward rippling effect on the surrounding space. DESCRIPTION OF HOW THIS IMAGE WAS CREATED: I constructed a clock using discs,cones and a torus of transparent coloured glass.The numerals on the watch were constructed by a very simple utility I wrote in Pascal,which converts text to blob-components. The face of the clock was made using a noise_surface with a ripple-normal, as well as a colour-map.(The colours of which I made using CSD).The original idea for the ripple came from the classic "blue_ripple."The clock's background was intersected by a grouping of cylinders,giving the illusion of parallel white lines,placed so that it fits the camera view around the edges of the tiled image,for a "seamless" fit. The landscape around the hole was made by first generating an image of which the colouring was determined by a cyclic function.This was used as a heightmap,with the clock-image(already rendered)wrapped around it,using a planar imagemap. The "hole" itself was generated by a simple utility,called "sweep".In the program,a set of 2-d points are inputted by mouse,and a lathe-format is generated.I changed some of the hole's points manually,and united it with the landscape.The whole was coloured using the image of the traced clock, a shiny surface and four lights. ADDITIONAL INFORMATION: Anyone wiht + and - comments & suggestions,or who wants to look at the code,or who is also interested in Polyray code generation utilities can contact me at gerritvn@osi.co.za Danie van Niekerk