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L2 : OpenGL First Programming

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last review
mastery
ranger
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Lab
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date
2023/03/16
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L1 : OpenGL Environment Setting

Quiz Review

1.
์นด๋ฉ”๋ผ๋ฅผ Pin์„ ๊ฝ‚์€ ๊ฒƒ ์ฒ˜๋Ÿผ ์ž‘๊ฒŒ ๋งŒ๋“  ๊ฒƒ์œผ๋กœ ๊ฐ€์ƒ ์นด๋ฉ”๋ผ๋ฅผ ์„ค์ •ํ•˜๋Š” ๊ฒƒ.
a.
๊ฐ€์ƒ ์นด๋ฉ”๋ผ๋ฅผ ์„ค์ •ํ•˜๋Š” ๊ฒƒ์€ ๋งž์œผ๋‚˜? ์นด๋ฉ”๋ผ์˜ ํฌ๊ธฐ๋Š” ์ƒ๊ด€์—†์Œ. ๋ Œ์ฆˆ๊ฐ€ ์ƒ๊ด€์žˆ์„ ๋ฟ.
2.
Projection ๋ชจ๋ธ์˜ ๋‹จ์ˆœํ™”๋ฅผ ์œ„ํ•˜์—ฌ ๋ Œ์ฆˆ๊ฐ€ ์—†๊ณ  ๋น›์ด ํ•œ์ ์œผ๋กœ๋งŒ ํ†ต๊ณผํ•˜์—ฌ ์ƒ์ด ๋งบํžˆ๋Š” ์นด๋ฉ”๋ผ ๋ชจ๋ธ
a.
์ •๋‹ต
3.
์นด๋ฉ”๋ผ์— Pin์œผ๋กœ ๊ตฌ๋ฉ์„ ๋šซ์€ ๊ฒƒ๊ณผ ๊ฐ™์ด ๊ฐ€์ƒ์œผ๋กœ ๋ชจ๋ธ๋ง ํ•œ ๊ฒƒ
a.
????????????????
4.
์‚ฌ๋žŒ์˜ ๋ˆˆ๊ณผ ์œ ์‚ฌํ•˜๊ฒŒ ํ‘œํ˜„ํ•˜๊ธฐ ์œ„ํ•ด ํ˜•ํƒœ์™€ ํ•จ๊ป˜ ๋ˆˆ์˜ ํ™์ฑ„์™€ ์ˆ˜์ •์ฑ„์˜ ๊ธฐ๋Šฅ์„ ๋ชจ๋ธ๋งํ•œ ๊ฐ€์ƒ ์นด๋ฉ”๋ผ
a.
์‚ฌ๋žŒ์˜ ๋ˆˆ๊ณผ๋Š” ๊ฑฐ๋ฆฌ๊ฐ€ ๋จผ ๋ชจ๋ธ๋ง ๋ฐฉ์‹์ด๋‹ค.
๋งž์Œ

๋‹ต์•ˆ ๋ฐ ํŒ๋‹จ์˜ ๊ทผ๊ฑฐ

xโ€™์™€ yโ€™์€ ๊ฐ๊ฐ โˆ’dxz,โˆ’dyz-d\cfrac{x}{z},-d\cfrac{y}{z}์ด๋ฏ€๋กœ, x,y์— ๋น„๋ก€ํ•˜๋ฉฐ, z์— ๋ฐ˜๋น„๋ก€ํ•œ๋‹ค. ๋”ฐ๋ผ์„œ z๊ฐ’์ด ์ปค์งˆ์ˆ˜๋ก normal Coordinate Systems์˜ xโ€™,yโ€™ ๊ฐ’์ด ์ž‘์•„์ง„๋‹ค๊ณ  ํŒ๋‹จํ–ˆ๋‹ค. (2๋ฒˆ)

Trivia

d๊ฐ€ ์ปค์งˆ ๊ฒฝ์šฐ โ†’ ์ƒ์ด ์ปค์ง„๋‹ค. (์นด๋ฉ”๋ผ ์คŒ ํšจ๊ณผ์— ํ•ด๋‹นํ•œ๋‹ค.)

๊ต์ •๋‹ต์•ˆ

๊ณ„์‚ฐ์ด ๊ฐ„๋‹จํ•ด์„œ!

๋‹ต์•ˆ ๋ฐ ํŒ๋‹จ์˜ ๊ทผ๊ฑฐ

Pinhole Camera์˜ ์Šคํฌ๋ฆฐ์˜ ์ขŒํ‘œ์˜ ํ•œ๊ณ„๋Š” ํ”„๋ ˆ์ž„์˜ ํฌ๊ธฐ๊ฐ€ ์ •ํ•œ๋‹ค๊ณ  ํŒ๋‹จํ–ˆ๋‹ค. ์ด๋ก ์ƒ x์™€ y์ขŒํ‘œ๊ฐ€ ๋ฌดํ•œ์œผ๋กœ ๋ฐœ์‚ฐํ•œ๋‹ค๊ณ  ๊ฐ€์ •ํ–ˆ์„๋•Œ๋„ ํ•€ํ™€ ์นด๋ฉ”๋ผ์˜ ํ”„๋ ˆ์ž„ ๊ฐœ๋…์ด ์—†๋‹ค๋ฉด Pinhole Camera๋กœ๋Š” Normalized Coordinate Systems๋ฅผ ๊ตฌํ•  ์ˆ˜ ์—†๋‹ค๊ณ  ํŒ๋‹จํ–ˆ๋‹ค. (4๋ฒˆ)

์ •๋‹ต ๋ฐ ํ•ด์„ค

์—ฌ๊ธฐ์—์„œ ๋งํ•œ ์ƒ์˜ ํฌ๊ธฐ๋ผ๋Š”๊ฒŒ ํ”„๋ ˆ์ž„์ž…๋‹ˆ๋‹ค ^^

Trivia

์ •๊ทœ์ขŒํ‘œ๊ณ„
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