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๐Ÿ› ๏ธ DirectX11 3D ๋ Œ๋”๋ง ์—”์ง„ ๋ฐ๋ชจ

C++



๐ŸŽจ ๋ชจ๋ธ ๋ Œ๋”๋ง


์• ๋‹ˆ๋ฉ”์ด์…˜







์Šคํ‚ค๋‹๊ณผ ํŠธ์œ„๋‹์œผ๋กœ ์ž์—ฐ์Šค๋Ÿฌ์šด ๋ชจ์…˜๊ณผ
๋ถ€๋“œ๋Ÿฌ์šด ์• ๋‹ˆ๋ฉ”์ด์…˜ ๊ฐ„ ์ „ํ™˜์„ ๊ตฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.





์ธ์Šคํ„ด์‹ฑ







๋™์ผํ•œ ๋ฉ”์‰ฌ์™€ ๋จธํ…Œ๋ฆฌ์–ผ์„ ๊ฐ€์ง„ ์—ฌ๋Ÿฌ ๋ฌผ์ฒด์˜ ์œ„์น˜ ์ •๋ณด๋ฅผ ๋ชจ์•„
ํ•˜๋‚˜์˜ ์ž๋ฃŒํ˜•์œผ๋กœ ์ „๋‹ฌํ•ด ๋“œ๋กœ์šฐ์ฝœ์„ ๊ฐ์†Œ์‹œ์ผฐ์Šต๋‹ˆ๋‹ค.
์ธ์Šคํ„ด์‹ฑ์œผ๋กœ ๋ฌผ์ฒด๋“ค์„ ๋ Œ๋”๋งํ•˜๊ธฐ ์œ„ํ•ด
Update ์‹œ ๋งˆ๋‹ค object๊ฐ€ ์†Œ์œ ํ•œ Component(Renderer)๋กœ ๋ Œ๋”๋งํ•˜๋˜ ๋กœ์ง์„
InstanceManger๋กœ ํ†ตํ•ฉํ•ด ๋ Œ๋”๋ง ํ•˜๋„๋ก ์ˆ˜์ •ํ–ˆ์Šต๋‹ˆ๋‹ค.





๐Ÿ—ป ์ง€ํ˜•/ํŒŒํ‹ฐํด


Greed (Height Map)







8๋น„ํŠธ ํฌ๋ฉง์˜ Height Map ์ •๋ณด๋ฅผ ํŒŒ์‹ฑํ•ด
๊ทธ๋ฆฌ๋“œ์˜ ๋†’๋‚ฎ์ด๋ฅผ ๋ Œ๋”๋ง ํ–ˆ์Šต๋‹ˆ๋‹ค.





Sky Box







์นด๋ฉ”๋ผ๋ฅผ ๊ตฌ์˜ ์ค‘์‹ฌ์— ๊ณ ์ •ํ•œ ํ›„
์นด๋ฉ”๋ผ์˜ ํšŒ์ „์— ๋”ฐ๋ผ ๋ฉ”์‰ฌ๊ฐ€ ์›€์ง์ด๋„๋ก ์กฐ์ •ํ•ด
Sky box๋ฅผ ๊ตฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.





Billboard







์นด๋ฉ”๋ผ์˜ ์‹œ์„  ๋ฒกํ„ฐ์™€ ๋ฌผ์ฒด์˜ ์œ„์น˜ ์ •๋ณด๋ฅผ ํ†ตํ•ด
๋ฌผ์ฒด๊ฐ€ ์นด๋ฉ”๋ผ์˜ ์‹œ์„  ๋ฒกํ„ฐ์— ๋งž์ถฐ ํšŒ์ „ํ•˜๋„๋ก ๊ตฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.





๐ŸŽฏ Collision


Ray picking







๋ทฐํฌํŠธ(2D)์—์„œ ์›”๋“œ ์ŠคํŽ˜์ด์Šค(3D)๋กœ ์ขŒํ‘œ๋ฅผ ๋ณ€ํ™˜์‹œ์ผœ
๋งˆ์šฐ์Šค๊ฐ€ ์œ„์น˜ํ•œ ์ง€์ ์—์„œ ๋น›์„ ์ด
์ถฉ๋Œํ•œ ๋ฌผ์ฒด๊ฐ€ ํด๋ฆญ์— ๋ฐ˜์‘ํ•˜๋„๋ก ํ–ˆ์Šต๋‹ˆ๋‹ค.





Button Demo (์‘์šฉ)







Orthographic ์นด๋ฉ”๋ผ๋กœ
ํŠน์ • ์œ„์น˜์— ๊ณ ์ •๋œ ๋ฒ„ํŠผ์„ ๊ทธ๋ฆฐ ํ›„
Ray Picking์œผ๋กœ ์‚ฌ์šฉ์ž ์ž…๋ ฅ์— ๋ฐ˜์‘ํ•˜๋„๋ก ๊ตฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.





๐Ÿ’ก ์กฐ๋ช…


Ambient / Diffuse / Specular



lightDemo_1



๋ฌผ์ฒด์™€ ๋น›์˜ Ambient, Diffuse, Specular ์ •๋ณด๋ฅผ ์„ž์–ด
๋น›์˜ ๋ฐฉํ–ฅ์— ๋”ฐ๋ฅธ ์ž์—ฐ์Šค๋Ÿฌ์šด ์ƒ‰์ƒ์„ ๊ตฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.

Specular์˜ ๊ฒฝ์šฐ
๋น›์˜ ์—ญ๋ฐฉํ–ฅ ๋ฒกํ„ฐ์™€ ์ผ์น˜ํ•˜๋Š” ๋…ธ๋ง ๋ฒกํ„ฐ ๋ฟ ์•„๋‹ˆ๋ผ
ํ•ด๋‹น ๋…ธ๋ง ๋ฒกํ„ฐ์™€ pi ๊ฐ€๋Ÿ‰์˜ ์‚ฌ์ž‡๊ฐ’์„ ๊ฐ€์ง„ ํ›„๋ฉด ๋ฒกํ„ฐ์—๋„
Specular ํšจ๊ณผ๊ฐ€ ์ ์šฉ๋˜๋Š” ๋ฌธ์ œ๊ฐ€ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค.

์ด๋ฅผ ์ˆ˜์ •ํ•˜๊ธฐ ์œ„ํ•ด acos์„ ํ™œ์šฉํ•ด ์„ธํƒ€๋ฅผ ์ถ”์ถœํ•˜๊ณ 
ํ•ด๋‹น ๊ฐ’์ด 0.75 * pi๋ฅผ ๋„˜์–ด๊ฐ€๋Š” ๊ฒฝ์šฐ
ํšจ๊ณผ๊ฐ€ ์ ์šฉ๋˜์ง€ ์•Š๋„๋ก ์ œํ•œ์„ ๊ฑธ์–ด ํ•ด๊ฒฐํ–ˆ์Šต๋‹ˆ๋‹ค.



Emissive







์นด๋ฉ”๋ผ์˜ ์‹œ์„  ๋ฒกํ„ฐ์™€ ๋ฌผ์ฒด์˜ ๋…ธ๋ง ๋ฒกํ„ฐ๋ฅผ ์„ž์–ด
๋ฌผ์ฒด์˜ ์™ธ๊ณฝ์„ ์„ ๊ฐ•์กฐํ•˜๋Š” ์กฐ๋ช…์„ ๊ตฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.





Normal Mapping



NormalMapping



RGB ์ •๋ณด๋กœ ์ €์žฅ๋œ ๋…ธ๋ง๋งต์„ ํŒŒ์‹ฑํ•œ ํ›„
ํ•ด๋‹น ์ •๋ณด๋ฅผ Tangent Space์—์„œ World Space๋กœ ๋ณ€ํ™˜ ํ›„
์‰์ด๋” ํŒŒ์ผ์—์„œ ์ถ”๊ฐ€์ ์ธ ์—ฐ์‚ฐ์„ ํ†ตํ•ด
๋ฌผ์ฒด์˜ ๋””ํ…Œ์ผํ•œ ์งˆ๊ฐ์„ ๊ตฌํ˜„ํ–ˆ์Šต๋‹ˆ๋‹ค.





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