์šฐ์„  ๋ฐ˜์ง€๋ฆ„์ด 500์ธ ๊ตฌ๋ฅผ ๋งŒ๋“ค์–ด ๋ดค์Œ.


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์•„์ง ํ”Œ๋ ˆ์ด์–ด๊ฐ€ ์กด์žฌํ•˜์ง€ ์•Š์ง€๋งŒ,ย 

์ „์ฒด์ ์œผ๋กœ ๊ตฌ์กฐ๋ฅผ ์†๋ด์„œ ํ˜„์žฌ ๋ฐ์ดํ„ฐ๋ฅผ ์ฑ„์›Œ๋„ฃ๋Š” ๋…ธ๋“œ์—ย ํ”Œ๋ ˆ์ด์–ด๊ฐ€ ์ˆ˜์ •ํ•œ ์ง€ํ˜•์ด ์กด์žฌํ•œ๋‹ค๋ฉด, ๋กœ๋“œํ•ด์˜ค๋Š” ์ชฝ์œผ๋กœ ๊ตฌ์กฐ๋ฅผ ์งœ๊ณ  ์žˆ์Œ.


์ด๊ฒŒ ๊ธฐ๋ณธ ์ง€ํ˜• ์ด์™ธ์˜ ํ”Œ๋ ˆ์ด์–ด์˜ ์ž‘์—…๋ฐ์ดํ„ฐ๋ฅผ ๋กœ๋“œํ•ด์•ผ ํ•  ๋•Œ, ๋ชจ๋“  ๋ชจ์„œ๋ฆฌ๋ฅผ ๋Œ์•„์•ผ ํ•ด์„œ ์‹œ๊ฐ„์ด 2๋ฐฐ ์ด์ƒ ๊ฑธ๋ฆฌ๋Š”๋ฐ๋‹ค,ย 

๋ฐ์ดํ„ฐ๊ฐ€ ์—†๋Š” ์ฒญํฌ๋ฅผ ๊ตฌ๋ถ„ํ•˜๊ธฐ๋„ ํž˜๋“ค์–ด์„œ ์Šคํ‚ต์„ ํ•˜๊ธฐ๊ฐ€ ํž˜๋“ฌ. <- ์ด๊ฒŒ ์ œ์ผ ํฐ ๋ฌธ์ œ์ž„


๊ทธ๋ž˜์„œ, ๊ธฐ๋ณธ์ ์œผ๋กœ ์ž‘์—…๋ฐ์ดํ„ฐ๋ฅผ ์ €์žฅํ• ๋•Œ๋Š”, ํ•ด๋‹น ์ž‘์—…๋ฐ์ดํ„ฐ๊ฐ€ ์˜จ์ „ํžˆ ๋“ค์–ด์žˆ๋Š” ์ตœ์†Œ์˜ ์˜ฅํŠธ๋ฆฌ ๋…ธ๋“œ์™€(๊ทธ๋ฆฌ๊ณ  ๊ทธ ๋ถ€๋ชจ๋“ค์—๋„) ์—ฐ๊ด€์ง€์–ด ์ €์žฅํ•˜๋ ค๊ณ  ํ•จ.


๋ฐ์ดํ„ฐ๋ฅผ ์ฑ„์›Œ๋„ฃ์„ ๋•Œ๋Š”, ํ˜„์žฌ ๋…ธ๋“œ์— ๋ฐ์ดํ„ฐ๊ฐ€ ์žˆ๋‹ค๋ฉด,ย ์ž์‹๋“ค์„ ์ฒดํฌํ•ด์„œ ๋ฐ์ดํ„ฐ๊ฐ€ ์—†๋Š” ์ž์‹์€ ๊ธฐ๋ณธ์ง€ํ˜•์„ ๋น ๋ฅด๊ฒŒ ๋กœ๋“œํ•˜๊ณ , ๋ฐ์ดํ„ฐ๊ฐ€ ์กด์žฌํ•œ๋‹ค๋ฉด, ๋ชจ๋“  ๋ชจ์„œ๋ฆฌ๋ฅผ ๋Œ๋ฉด์„œ ๋А๋ฆฌ๊ฒŒ ์ฑ„์›Œ๋‘ .


๋˜ํ•œ, ํ˜„์žฌ ๋ฐ์ดํ„ฐ๋ฅผ ์ฑ„์›Œ๋„ฃ๋Š”์ค‘์ธ ์ฒญํฌ์˜ Lod ์ˆ˜์ค€์— ๋”ฐ๋ผ ์ผ์ • ํฌ๊ธฐ ์•„๋ž˜์˜ ์ž‘์—…๋ฐ์ดํ„ฐ๋ฅผ ์ƒ๋žตํ•˜๋ ค๊ณ  ํ•จ.



๋ฒ„๊ทธ๋•Œ๋ฌธ์— ์ง„์งœ ํ•˜๋ฃจ์ข…์ผ ๊ณ ์ƒํ•ด์„œ ํ—ˆ๋ฆฌ๊ฐ€ ์•„ํ””. ๋Œ€์‹  ํ•ด๊ฒฐํ•ด์„œ ๊ธฐ๋ถ„์€ ์ข‹์Œ


๊ตฌ๋งŒ ์„ค์น˜๋˜๋Š”๊ฒŒ ์•„๋‹ˆ๋ผ, Signed Distance Function์œผ๋กœ ์ •์œก๋ฉด์ฒด, ์ง์œก๋ฉด์ฒด, ์›๊ธฐ๋‘ฅ, ์›๋ฟ” ๋“ฑ๋“ฑ ์˜จ๊ฐ– ๋„ํ˜•์„ ์„ค์น˜ํ•  ์ˆ˜ ์žˆ์Œ.


https://www.iquilezles.org/www/articles/distfunctions/distfunctions.htm