Unreal

Navigation Theory

January 21 2023

Navigation with AI ๊ธธ์ฐพ๊ธฐ๋ฅผ ํ†ตํ•ด ์ฃผ๋ณ€ ํ™˜๊ฒฝ์„ ํ—ค์ณ๋‚˜๊ฐ€๋Š” ๊ฑด AI์˜ ๊ธฐ๋ณธ์ด์ง€๋งŒ ๋‹จ์ˆœํžˆ A ์ง€์ ์—์„œ B ์ง€์ ์œผ๋กœ ์ด๋™ํ•˜๋Š” ๊ฒƒ์€ ๋งˆ๋ƒฅ ์‰ฌ์šด ์ผ์€ ์•„๋‹ˆ๋‹ค. ๊ธธ์ฐพ๊ธฐ๋Š” ๊ฒฝ๋กœ ํƒ์ƒ‰๊ณผ ์žฅ์• ๋ฌผ ํšŒํ”ผ๋กœ 2 ๋‹จ๊ณ„๋กœ ๋‚˜๋ˆŒ ์ˆ˜ ์žˆ๋‹ค. ์—ฌ๊ธฐ์„œ ์žฅ์• ๋ฌผ์ด๋ž€ ๊ณ ์ •๋œ ์ƒํƒœ์˜ ๋ฌผ์ฒด๋กœ ์ •์˜ํ•œ๋‹ค. ์ด๋Ÿฐ ์žฅ์• ๋ฌผ์„ ํšŒํ”ผํ•˜๊ธฐ ์œ„ํ•ด Navigation Mesh๊ฐ€ ํ•„์š”ํ•˜๋‹ค.

Behavior Tree Theory

January 21 2023

Behavior Tree ํ–‰๋™ ํŠธ๋ฆฌ๋Š” AI๊ฐ€ ํ˜„์žฌ ํ™˜๊ฒฝ์—์„œ ์–ด๋–ค ํ–‰๋™์„ ํ•  ์ง€ ๊ฒฐ์ •ํ•˜๋Š” ๋ถ„๊ธฐ๋ฅผ ๋„์‹ํ™”ํ•œ ๊ฒƒ์ด๋‹ค. ์ด๋Š” ๊ฐ ๊ฐœ๋ณ„ ๋…ธ๋“œ์˜ ์‹ค์ œ ์ž‘๋™ ์›๋ฆฌ๋ฅผ ์ดํ•ดํ•  ํ•„์š” ์—†์ด, AI์˜ ํ–‰๋™ ํ”Œ๋กœ์šฐ๋ฅผ ์‹œ๊ฐ์ ์œผ๋กœ ์ œ๊ณตํ•œ๋‹ค.

AI Perception Theory

January 21 2023

Parts of the AI Perception System Unreal์€ AI Perception System์„ ํ†ตํ•ด Actor๊ฐ€ ๋ฌด์—‡์„ ๊ฐ์ง€ํ•˜๋Š”์ง€, World์˜ ์–ด๋–ค ๋ถ€๋ถ„์„ ๊ฐ์ง€ํ•  ์ˆ˜ ์žˆ๋Š”์ง€๋ฅผ ์ œ์–ดํ•˜๊ฒŒ ํ•ด์ค€๋‹ค. ์ˆ˜์ง‘ํ•œ ์ •๋ณด๋Š” Event-driven system์ด ์ฒ˜๋ฆฌํ•˜๋ฉด์„œ ๊ฐ„๋‹จํ•ด์ง€๋ฉฐ ๊ฐ€๋ฒผ์šด ๋น„์šฉ๋งŒ์„ ์†Œ๋ชจํ•œ๋‹ค. ๊ฒฐ๊ณผ์ ์œผ๋กœ ๋ธ”๋ฃจํ”„๋ฆฐํŠธ ์•ˆ์—์„œ ์ „๋ฒ”์œ„์— ...

Root Motion

January 21 2023

๋ฃจํŠธ ๋ชจ์…˜ ์‚ฌ์šฉ ์—ฌ๋ถ€์— ๋”ฐ๋ฅธ ์ฐจ์ด

Unreal ์ฃผ์š” Type

January 08 2023

UCLASS์™€ USTRUCT์˜ ์ฐจ์ด? ๊ฐ ๋งคํฌ๋กœ๋Š” Reflection ์‹œ์Šคํ…œ์— ํด๋ž˜์Šค์™€ ๊ตฌ์กฐ์ฒด๋ฅผ ๋“ฑ๋กํ•˜๋Š” ๋ฐ ์‚ฌ์šฉํ•œ๋‹ค Unreal Editor๊ฐ€ ์‚ฌ์šฉ์ž ์ •์˜์˜ ํด๋ž˜์Šค ๋˜๋Š” ๊ตฌ์กฐ์ฒด๋ฅผ ์ธ์‹ํ•˜๊ธฐ ์œ„ํ•œ ๋ฐฉ๋ฒ•์ด๋‹ค ๋ฉ”๋ชจ๋ฆฌ ๊ด€๋ฆฌ ์‹œ์Šคํ…œ์— ํฌํ•จ์‹œ์ผœ Garbage Collectionํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•œ๋‹ค UHT(Unreal ...

UObject

January 03 2023

UObject UObject๋Š” Unreal Engine์—์„œ ๊ฐ€์žฅ ๊ธฐ๋ณธ์ด ๋˜๋Š” ๊ฐ์ฒด๋‹ค UCLASS ๋งคํฌ๋กœ ์„ ์–ธ์œผ๋กœ UObject๋ฅผ ๊ด€๋ฆฌํ•˜๋Š” ์‹œ์Šคํ…œ์ด ์ด๋ฅผ ์ธ์‹ํ•œ๋‹ค Reflection System์„ ํ†ตํ•ด Garbage Collection์„ ์ˆ˜ํ–‰ํ•˜๋Š” ๋“ฑ์˜ ์—ญํ• 

์• ๋‹ˆ๋ฉ”์ด์…˜์— ๋Œ€ํ•œ ๊ฐ„๋‹จํ•œ ์šฉ์–ด ์ •๋ฆฌ

September 04 2022

IK์™€ FK FK Rig Forward Knematics Parent๊ฐ€ ์›€์ง์ด๋ฉด Child๋„ ์ข…์†๋˜์–ด ์• ๋‹ˆ๋ฉ”์ด์…˜์ด ์ž‘๋™ ํŒ”๊ฟˆ์ง€๋ฅผ ์œ„์•„๋ž˜๋กœ ํ”๋“ค๋ฉด ์†, ์†๊ฐ€๋ฝ๋„ ๋”ฐ๋ผ ์›€์ง์ด๋Š” ์›๋ฆฌ

Unreal Object

September 04 2022

UObject ์˜ค๋ธŒ์ ํŠธ์˜ ๋ฒ ์ด์Šค ํด๋ž˜์Šค ์–ธ๋ฆฌ์–ผ ์—”์ง„์˜ ๊ด€๋ฆฌ๋ฅผ ๋ฐ›๋Š”, ํšจ์œจ์ ์œผ๋กœ ๊ด€๋ฆฌํ•˜๊ธฐ ์œ„ํ•ด ๊ณ ์•ˆ๋œ ํŠน์ˆ˜ํ•œ ๊ฐ์ฒด UCLASS ๋งคํฌ๋กœ๋ฅผ ํ†ตํ•ด UObject ์ฒ˜๋ฆฌ ์‹œ์Šคํ…œ์ด ์ธ์‹ UE์—์„œ ์ œ๊ณตํ•˜๋Š” GC์˜ ๊ด€๋ฆฌ๋ฅผ ๋ฐ›์„ ์ˆ˜ ์žˆ๋‹ค UCLASS์˜ ๋ ˆํผ๋Ÿฐ์Šค๋ฅผ UObject์—๊ฒŒ ๋„˜๊ฒจ์ค€๋‹ค? ...

Actor Lifecyle

September 04 2022

๊ธฐ๋ณธ์ ์ธ Actor์˜ ๋ผ์ดํ”„ ์‚ฌ์ดํด PreInitializeComponents ์ปดํฌ๋„ŒํŠธ ์ดˆ๊ธฐํ™” ์ด์ „ InitializeComponents ์•กํ„ฐ์— ์ •์˜๋œ ๊ฐ ์ปดํฌ๋„ŒํŠธ ์ƒ์„ฑ์šฉ ํ—ฌํผ ํ•จ์ˆ˜ PostInitializeComponents ์•กํ„ฐ์— ์†ํ•œ ๋ชจ๋“  ์ปดํฌ๋„ŒํŠธ์˜ ์ดˆ๊ธฐํ™”๊ฐ€ ์™„๋ฃŒ BeginePlay ํ”Œ๋ ˆ์ด ์‹œ...

Unreal ๊ทธ๋ž˜ํ”„ ์ ‘๊ธฐ

May 01 2022

๋…ธ๋“œ๋กœ ์ ‘๊ธฐ ๋ธ”๋ฃจํ”„๋ฆฐํŠธ ๋…ธ๋“œ๋ฅผ ๋””์ž์ธํ•˜๋‹ค๊ฐ€ ์ปค๋‹ค๋ž€ ๊ทธ๋ž˜ํ”„๋ฅผ ํ•˜๋‚˜๋กœ ๋ฌถ์–ด ์ •๋ฆฌํ•˜๋Š” ๊ธฐ๋Šฅ

Blueprint

May 01 2022

Blueprint๋ž€? Unreal ์—”์ง„์— ๋‚ด์žฅ๋œ ์ปดํŒŒ์ผ์‹ ๋น„์ฃผ์–ผ ์Šคํฌ๋ฆฝํŒ… ์‹œ์Šคํ…œ ํ•˜๋‚˜์˜ ํ”„๋ฆฌํŒน ํ˜น์€ ์•„ํ‚คํƒ€์ž…์œผ๋กœ ์ •์˜ํ•˜๋Š” ๋‹จ์œ„์ผ ์ˆ˜๋„ ์žˆ๋‹ค

Unreal ๋งคํฌ๋กœ

April 27 2022

์–ธ๋ฆฌ์–ผ์— ๋งคํฌ๋กœ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ์ด์œ  ์–ธ๋ฆฌ์–ผ C++ ์ฝ”๋“œ๋Š” Unreal Header Tool, UHT Preprocessor๋ผ ๋ถˆ๋ฆฌ๋Š” ์ปค์Šคํ…€ RTTI๋ฅผ ์‚ฌ์šฉํ•œ๋‹ค ์ด๋Ÿฐ ๋งคํฌ๋กœ๊ฐ€ ๋‹ฌ๋ฆฐ ์ฝ”๋“œ๋Š” ์ผ๋ฐ˜์ ์ธ C++ ๋งคํฌ๋กœ์™€ ๋‹ฌ๋ฆฌ ๋” ๋‚ฎ์€ ๋ ˆ๋ฒจ์—์„œ ์ž‘๋™ํ•˜๋ฉฐ ๊ด€๋ฆฌ๋œ๋‹ค ์ด ๋งคํฌ๋กœ๋“ค์€ RTTI, Reflection ๋“ฑ ์ž‘๋™์„ ์œ„ํ•ด ๋ฉ”ํƒ€ ๋ฐ์ดํ„ฐ๋ฅผ ์ƒ์„ฑํ•œ๋‹ค