fix Makefile and README.md for 2004/gavare
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@@ -1,4 +1,4 @@
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Best Use of Light and Spheres:
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# Best Use of Light and Spheres:
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Anders Gavare
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Gibraltargatan 82-156
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@@ -7,62 +7,68 @@ Best Use of Light and Spheres:
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http://www.mdstud.chalmers.se/~md1gavan/
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# To build:
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Judges' Comments:
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```sh
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make
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```
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To build:
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### To run:
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make gavare
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```sh
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./prog
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```
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To run:
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### Try:
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./gavare > ioccc_ray.ppm
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```sh
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./gavare > ioccc_ray.ppm
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```
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For users of systems that distinguish between text and binary mode
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(you know who you are), add a library call that specifies binary mode
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for stdout as the first statement of main(),
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or use freopen("ioccc_ray.ppm", "wb", stdout) and do not use redirection.
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## Judges' comments:
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A freely distributable command-line version of Microsoft Visual C
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exhibits an optimizer bug when compiling this entry. Disable /Og for
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best results.
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For users of systems that distinguish between text and binary mode
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(you know who you are), add a library call that specifies binary mode
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for stdout as the first statement of main(),
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or use freopen("ioccc_ray.ppm", "wb", stdout) and do not use redirection.
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The judges were able to figure out how to control position
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(in all 3 coordinates), size, and color (to some extent) of the balls.
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A freely distributable command-line version of Microsoft Visual C
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exhibits an optimizer bug when compiling this entry. Disable /Og for
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best results.
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The judges were able to figure out how to control position
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(in all 3 coordinates), size, and color (to some extent) of the balls.
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Selected Author's Comments:
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## Author's comments:
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It is possible to write some kinds of programs in C without using reserved
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words. For very short and trivial programs, it usually isn't very hard to
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write a variant using no reserved words, but with this program I want to
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show that also non-trivial programs can be written this way. This IOCCC
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entry contains no reserved words (I don't count 'main' as a reserved word,
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although the compiler gives it special meaning) and no preprocessor
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directives.
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It is possible to write some kinds of programs in C without using reserved
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words. For very short and trivial programs, it usually isn't very hard to
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write a variant using no reserved words, but with this program I want to
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show that also non-trivial programs can be written this way. This IOCCC
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entry contains no reserved words (I don't count 'main' as a reserved word,
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although the compiler gives it special meaning) and no preprocessor
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directives.
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The program is a small ray-tracer. The first line of the source code may
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be modified if you want the resulting image to be of some other resolution
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than the predefined. The 'A' value is an anti-alias factor. Setting it to
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1 disables the anti-aliasing feature (this makes the output look bad), but
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setting it too high makes the trace take a lot more time to complete.
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The program is a small ray-tracer. The first line of the source code may
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be modified if you want the resulting image to be of some other resolution
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than the predefined. The 'A' value is an anti-alias factor. Setting it to
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1 disables the anti-aliasing feature (this makes the output look bad), but
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setting it too high makes the trace take a lot more time to complete.
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The ppm image can then be viewed using an image viewer of your own choice.
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(Running the ray-tracer may take several minutes, even on fast machines,
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so be patient.)
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The ppm image can then be viewed using an image viewer of your own choice.
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(Running the ray-tracer may take several minutes, even on fast machines,
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so be patient.)
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I am very much aware about the fact that I'm breaking the guidelines. For
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example, the word 'int' is a reserved word and therefore all variable
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declarations are implicit. There will no doubt be _lots_ of warnings,
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no matter which compiler is used. Still, the source code should be word-
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length-independent and endianess-independent.
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<humor>
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Another reason for writing code without using reserved words is that many
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text editors will make all reserved words turn BOLD when printed on
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paper. Since I care for the global environment, we shouldn't waste any
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more laser toner, or ink, than necessary. Everyone should write C code
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with no reserved words, and our world will be a better place.
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</humor>
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I am very much aware about the fact that I'm breaking the guidelines. For
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example, the word 'int' is a reserved word and therefore all variable
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declarations are implicit. There will no doubt be _lots_ of warnings,
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no matter which compiler is used. Still, the source code should be word-
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length-independent and endianess-independent.
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<humor>
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Another reason for writing code without using reserved words is that many
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text editors will make all reserved words turn BOLD when printed on
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paper. Since I care for the global environment, we shouldn't waste any
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more laser toner, or ink, than necessary. Everyone should write C code
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with no reserved words, and our world will be a better place.
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</humor>
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