A.I.

Unreal Perception 2

July 21 2025

Perception Component ์ฃผ๋กœ AI์˜ ํƒ€๊ฒŸ ์ธ์ง€ ๋ฐ ํ•ด์ œ๋ฅผ ๊ด€๋ฆฌํ•˜๋Š” ๋ชฉ์ ์˜ ์ปดํฌ๋„ŒํŠธ ์ž๊ทน(stimulus)์„ ์ธ์ง€ํ•˜๋ฉด์„œ ํ˜ธ์ถœํ•˜๋Š” ๋Œ€ํ‘œ์ ์ธ delegate๋Š” ์•„๋ž˜์™€ ๊ฐ™๋‹ค OnPerceptionUpdated ์ž๊ทน์„ ์ฒ˜๋ฆฌํ•˜๋Š” ๊ณผ์ •์—์„œ ์ž๊ทน์„ ์ œ๊ณตํ•œ ๋ชจ๋“  ์•กํ„ฐ๋ฅผ ์–ด๋ ˆ์ด๋กœ ๋ฐ›๋Š”๋‹ค ...

Unreal Behavior Tree 2

July 21 2025

Behavior Tree Service Composite ํ˜น์€ Task์— Attach ๋˜์–ด ๋ถ„๊ธฐ๊ฐ€ ์‹คํ–‰์ค‘์ธ ๋™์•ˆ ์ •์˜๋œ ๋นˆ๋„๋กœ ์‹คํ–‰ Blackboard ๊ฐ’ ํ™•์ธ ๋ฐ ์—…๋ฐ์ดํŠธ ๋ชฉ์ ์œผ๋กœ ์‚ฌ์šฉ

Unreal Perception 1

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„์— ...

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.

Unreal Behavior Tree 1

January 21 2023

Blackboard / Behaviour Tree / AI Controller / Pawn ์˜ ๊ด€๊ณ„

Terrain Analysis & Propagation

February 15 2022

Influence Mapping ์˜ํ–ฅ๋„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์ˆ˜์น˜๋ฅผ 2d grid์— ๋ถ„์‚ฐ์‹œ์ผœ ๋†“์€ ์ถ”์ƒ ๋””์ž์ธ

Path-Finding

November 14 2021

๊ณต๊ฐ„ ๋ถ„ํ• ์˜ ํƒ€์ž… Grid QuadTree/OctTree Waypoint graphs Coner graphs Circle-based waypoint graphs Navigation meshess

Finite-State Machine

February 04 2020

Finite-State Machine ๊ธฐ๋ณธ์ ์œผ๋กœ๋Š” ๋…ผ๋ฆฌ ํšŒ๋กœ๋ฅผ ์„ค๊ณ„ํ•˜๋Š” ๋ฐ์— ์“ฐ์ด๋Š” ์ˆ˜ํ•™์  ๋ชจ๋ธ ์—์ด์ „ํŠธ๋Š” ํ•œ ๋ฒˆ์— ๋‹จ ํ•˜๋‚˜์˜ state์—๋งŒ ๋จธ๋ฌด๋ฅผ ์ˆ˜ ์žˆ๋‹ค ๋ผ์šฐํ„ฐ๋กœ๋ถ€ํ„ฐ ์—์ด์ „ํŠธ๊ฐ€ ๋ฉ”์„ธ์ง€๋ฅผ ๋ฐ›๊ณ , ์—์ด์ „ํŠธ๋Š” ๋ฉ”์‹œ์ง€๋ฅผ ํ•ด๋…ํ•˜๊ณ  ์ด์— ๋”ฐ๋ผ ์ž์‹ ์˜ state๋ฅผ ๋ณ€๊ฒฝํ•œ๋‹ค ์—์ด์ „ํŠธ์˜ ํ”ผ๋“œ๋ฐฑ์€ router๋กœ ๋‹ค์‹œ ์ „์†ก๋œ๋‹ค

Flocking

January 13 2020

Boid (bird-oid object) ์ธ๊ณต ์ƒ๋ช…์ฒด๋ผ๋Š” ์˜๋ฏธ ์ƒˆ์ฒ˜๋Ÿผ ๋ชจ์—ฌ ๊ทœ์น™์— ๋”ฐ๋ผ ๊ตฐ์ง‘ํ–‰๋™์„ ํ•˜๋Š” ๊ฐ ๊ฐœ์ฒด

ํ–‰๋™ํŠธ๋ฆฌ(Behavior Tree)

January 13 2020

ํ–‰๋™ํŠธ๋ฆฌ(Behavior Tree) ๋„์‹ํ™”ํ–ˆ์„ ๋•Œ ์ง๊ด€์ ์ด๊ณ  ์‰ฝ๊ฒŒ ๋””์ž์ธํ•  ์ˆ˜ ์žˆ์Œ ๋Ÿฐํƒ€์ž„์—์„œ ํ…Œ์ŠคํŠธ ๋˜๋Š” ๋””๋ฒ„๊น…ํ•˜๊ธฐ๊ฐ€ ๊นŒ๋‹ค๋กœ์›€ ํ–‰๋™ ํŒจํ„ด์„ ๊ณ„ํšํ•œ ๋Œ€๋กœ ์‹œํ–‰ํ•˜๋Š” ๋ชจ๋ธ(model of plan execution) FSM, HFSM์„ ๊ตฌํ˜„ํ•  ๋•Œ ์ƒํƒœ๊ฐ€ ๋งŽ์•„์ง€๋ฉด ์œ ์ง€๋ณด์ˆ˜ ๋ฐ ๊ฐ€๋…์„ฑ ๋ฉด์—์„œ ์‚ฌ์šฉ์„ฑ์ด ๋–จ์–ด์ง€๊ฒŒ ๋˜๋Š” ๋‹จ์ ์„ ๋ณด์™„ํ–ˆ๋‹ค๊ณ  ํ•œ๋‹ค ...

A* ์•Œ๊ณ ๋ฆฌ์ฆ˜

January 13 2020

๋ฌด๋ฐฉํ–ฅ ๊ทธ๋ž˜ํ”„ Undirected Graph ๋ฐฉํ–ฅ์ด ์—†๋Š” ๊ฐ„์„  ๊ฐ ๊ฐ„์„ ์€ ์–‘๋ฐฉํ–ฅ