EMAIL: chrfr@chrfr.de NAME: Christian Froeschlin TOPIC: Music COPYRIGHT: I SUBMIT TO THE STANDARD RAYTRACING COMPETITION COPYRIGHT. TITLE: Glockenspiel COUNTRY: Germany WEBPAGE: - RENDERER USED: Povray 3.6 TOOLS USED: MS Paint (Label & JPG Conversion) RENDER TIME: 15 minutes HARDWARE USED: Pentium 4 2.6Ghz IMAGE DESCRIPTION: My girlfriend bought a pentatonic glockenspiel for her baby nephew and instead of saying "how nice" I said "hey, even I could render that". Thus originated my first submission - don't try this at home. I added the chain to prevent the scene from becoming to idyllic ;) DESCRIPTION OF HOW THIS IMAGE WAS CREATED: Originally, my main interest was to automatically derive the correct length of the metal bars based on a specified pitch. This turned out to be much more difficult than anticipated - just assuming a simple 1D harmonic oscillator yielded ridiculously long bars, even taking into account that a glockenspiel supposedly sounds two octaves higher than its nominal value. After reading http://home.fuse.net/engineering/Chimes.htm, I finally gave up, i.e. I ignored the absolute scale but continued to use the relative lengths, just because they seemed about right. I learned enough to know I don't want to be an instrument builder. Apart from that, the geometry is very simple and not much worth commenting on. I used predefined wood textures but still had a lot of "fun" applying them. Also, I tried to simulate some kind of motion blur for the mallet by using several partially transparent copies.