Gicii thu-ang SV.NCKH-Eureka lin tha 15 nam 2013 Ky yeu khoa hoc PHAT TRIEN GAME FRAMEWORK MIA TREN GAME ENGINE PANDA3D Trim Thanh Thien, Triin Hoong Thinh, Trim Minh Trill Khoa Cong nghe Thong tin, Trutfmg Doi hoc Khoa hoc Tu nhien-DM hoc Quac gia Thanh pha Ho Chi Minh De tai dm gicii Ludn van xuat sac Giiti Chuang Sinh vien nghien cdu khoa hoc — Eureka liin XV nam 2013 TOM TAT Tren nen game engine ma nguiln ma Panda3D, nhom da phat Ulan he th6ng framework giiip lap trinh vien giii quyet cac van de ca ban nhu resource loading, he thong scripting, nhiem vu, phan ph6i sirkien ding nhu cac hieu ling hoa throng gap game CAng voi phong trao ma nguon me( dang phat trien manh a Viet Nam, nhom by vong c6 the them mOt sir bra chon "ma" cho tat ca lap trinh vien game dm Viet Nam Tir khod : Game Framework, Ma nguon ma, Panda3D, game engine, Scripting MO DAu Cimg voi str phat trien dia ding nghe th6ng tin, nen ding nghiep giai tri tren PC ding co nhimg bulk tien vuot bac Nen ding nghiep game non tre cua ntrac nha dang thing truot nhieu ap luc tir nhung di may phat hien game den tir Trung Qu6c, Han Quoc, Cung v6i t6c dq phat trien nhanh thong cfta tht truong game online, nhu mOt xu htrong khong the,thay 0i, M'O'i nam dat nuac that thoat hang tram den hang nghin ti dong tien mua cac san phim den tir Trung Quoc Kh8ng chi vies dimg lai van de that thoat ngoai to ma ben canh van de du nhapvan hoa Trung Quek Nhieu ban tre hien can am hieu van hoa Trung QuOc, Han QuOc nhieu hon nen van hoa g6c cua dat nuac He luy ctia van de IA khong the can dong dem duct Game framework nhom phat trien tren nen game engine ma nguon mo Panda3D nham giftp.lap trinh vien a Viet Nam c6 the da dang hon viec xay dung game 3D Viet Nam va teen the glen c6 eat nhieu game engine mien phi Ian co phi Tuy nhien, mOt game engine ma nguon mo thuong eat hiem va chat luting hau het rat thap Game Engine Panda3D hien tai kh6ng the so sanh &roc voi cac game Engine not tieng hien tai (Unreal Engine, CryEngine, Frosbite ) va cang c6 qua nhieu mat yeu kem so sanh voi nhitng game engine tam trung nhu Unity3D Tuy nhien voi mOt kien true nen tit, qua trinh phat trien lau doi, giay phep ma nguon ma rat to dua tren giay phep BSD, va dac biet IA Bac biet IA su dimg sau ctia ong Ion Walt Disney va Carnegie Mellon Entertainment Center— Carnegie Mellon University Panda3D c6 mOt s6 lcri the khong the chical B6 qua yeu kern ve mat giao dien nguai dung (gan nhu khong c6), Kin true game (On nhu khong c6), He thong hoa Wang cao (gen nhu khong co), Panda3D mang den cho lap trinh vien sixtuong tac sau vao qua trinh lam game (sir dung Cg, GLSL de toting tae v6 i GPU), nein ngit lap trinh scripting manh me (python), he thong pipeline don gian, hieu qua, Rd rang viec xay dung mOt ding cu lam game dua tren Panda3D se tiet kiem theri gian, ding sue va tang tin clay len eat nhieu lan so yeti viec xay dtmg lai game engine tir dau VAT LIEU VA PHVONG PHAP NGHIEN CirU v4t lieu De sir dung game engine Panda3D can phai co bci phat trien Panda3D SDK BO phan mem dugs viet bang C++ va Python nen c6 the chay doge tren rat nhieu moi mrong Trong qua trinh xay dung, nhom thuc hien xay dung Framework tren moi truang he dieu hanh chinh Windows (Windows 7) Nit Linux (Ubuntu 11.04) kit hop voi moi truang phat trien tich hop (IDE) Eclipse doge bo sung goi module pydev Viec phat trien framework ding dua tren phan cling hoa khk (AMD Radeon 5470 va Nvidia Geforce 210) Phirong phip Xdy dtmg ccic module ddc Idp, rieng le Nhom da xay dung rat nhieu module rieng 10 co kha rang chay kiem nghiem kha nang cua Panda3D ding nhu lam quen kien trite diagame engine Trong qua trinh xay dung cac module nay, nh6m co gang tim diem tuong dong va tong hop lai , xay dung framework ve sau Xciy dung kien frac Tir qua trinh nghien cuu va xay dkmg cac game tnrac (XNA — Microsoft, Windows Phone, Android, Symbian) Nhom da to xay dtmg lai cac kien true de phi, hop vai moi the loai game Rut trich nhimg dac diem dm 204 Giai thuimg SV.NCKH-Eureka ldn tha 15 nam 2013 Ky ydu khoa hoc game engine de tang kha Wang tuong thich Ket qua sau xay dung, nh6m kha bAt nger vi kien tr6c da xay nen rat giong voi game engine Unity3D Qua trinh xdy dung game thus nghiem va bo sung framework Sau phat trien ca ban hoan tat game framework, nhom chon phuang phap xay dung nhieu game thuOc cac the loai khac de kiem chimg ve kha nang hoat diing dm framework cling nhu su xung d6t giva cac thinh,ph'an giai clop nay, ngoai viec sira cac 161 xung phan, nham b6 sung them mot cac thinh phan can thiet cho game (nhiem vu, giao dien 2D, ) HET QUA VA THAO LU/01 Xfiy thing cac module da , p lip, rieng le NhOm da xay dung &roc mot luting kha cac hieu img hoa, kiem nghiem he th6ng physic engine (Bullet Engine) ding cac hieu Ong ve theri gian khac Hieu ring hoa: Terrain: Xay dung he thOng dia hinh dua tren he theing dia hinh c6 sin cua Panda3D (heightmap vbi Level Of Detail) va tich hop them Multi-Texture (Alpha-map va Detail-map) Hinh Xay di,rng dia hinh vai Level Of Detail (trai) va Multi Texture (Phai) Mat ntroc: Nhom phat trien cong he th6ng mat nuac dua tren phuong phap Bump-mapping NM Perlin Noise Hai phuang phap sir dung mo ph6ng cho loai be mat nu& khac la nuoth6 (Bumpmapping) va nuac bien (Perlin Noise) Hinh Phvang phap m6 phong mat ruck yeti Bump-mapping (trM) va Perlin Noise (Phai) Da bong: N thong d6 bong duqc nhOm tich h9p tit* ben ngoai vao IA Percentage-Closer Filtering (PCF) va Parallel Split Shadow Maps (PSSM) 205 Githi timing SV.NCKH-Eureka Idn thic 15 nam 2013 1())ye'u khoa hoc Hinh DO bong framework (PCF.) He thOn.e huu trai : Gam Skybox, Skydome, SkyoCombine Trong phucmg phap SkyCombine la plurcmg phap tong hop ou diem cua Skybox va Skydome 111116111m Hinh SkyBox (trai) va Skycombine (phai) He thong thoi gian: He thong th6i gian game la so thay d6i ve mat anh sang, chieu sang, bong bao gam thay d6i mau sac dm anh sang va bau , goc chieu sang va d6 bong, Hinh HO thong th6i gian framework Cac he th6'ng hoo giCip lap trinh vien bet kiem doge rat nhieu th6i gian Ngoai vai n11E-mg game don gian, cac lap trinh vien se kh6ng can phai thao tac vai cac phan phac tap ben dueri (GLSL, Cg, ) 206 Ky yeiu khoa hoc Giai throng SV.NCKH-Eureka kin dui 15 nam 2013 My dung Men frac Co the scripting: Tir viec kilo khan to chirc kien the tro chcri va nhtrqc diem sfr dung ke thira Nh6m da tim hieu va chh y tai phut:mg phap pluggin Tuy nhien, viec lap trinh tren Panda3D dtra ten nen ngil scripting Python nen nhom da quy6t dinh tich hap phtrong phap scripting Trong framework, mot doi Wang c6 the dirk dieu khien beri met hay nhieu file script va cac file script co the dung chung gift nhieu doi Wang Message Dispatch: Ngoai kh6 khan ye van de dieu khien, viec truyen th6ng tin giiia cac d6ittrong ding gap nhieu kh6 khan Dac biet so Itrang cac object bit dau ter nen km han, cac lung thong tin bat dau mat kiem soat va cuc ki,khO debug Dua tren to twang ve middleware, nh6m da` xay dung met phuang thirc chuyen thong tin gift cac doi tueng th6ng qua doi tucmg trung gian la message dispatcher Phoi hop veri cache phan tag, mot message di the dupe giri cho doi tuqng, hay nhieu nhOm doi tuqng hay toan b6 cac clei twang co mat a game He thong tai tai nguyen (Resource loading): Lay Y twang tit web, nhOm xay dung he thOng tai resource có kha nang tai Ong (dynamic loading), Caching (gitt lai nhihig resource da tai a ten cache), swapping (chuyen d6i hoan toan he thong d6i tucrng sang he thong d6i twig khk) Factory va cac he thong lien quan: De giap tien Icri qua trinh xay dung game ding nhu de clang han viec xay dung Map Editor, Game Editor, nhom xay dung he thong Game Factory giiip xay dtmg hau het cac doi Wang game va ket not vai Game Framework, he thong scripting cfing nhu Message Dispatcher Lap trinh vial chi can khai bao doi Wong bang XML hok Json, toan be cac btrerc lai se duet framework load to deng clang xay dung game ma kh8ng can danh qua nhieu Val kien true framework, lap trinh vien co the thai gian de thiet ke kien true game Kb' nang ma reng, bao tri, sira china ding dirk nang cao so you cac phtrong a phap thong thuong Qua trinh xay dung game thirc nghi@n va NI sung framework He thong nhiem vu: Day la he thOng b6 sung giop lap trinh vien co the too cac nhiem Iry da dang va rat dan gian (Iva tren viec thu thap ,cac gOi tin can thiet &rot gui den met dOi wow cu the nao He thong nhiem vu c6 the dap thig dtrqc hau cac the loci nhiem vu hien tai dirk nhom biet den (ban sung goc nhin thu nhat, chien thuat theri gian that, game di canh, ) Nhom dive hien xay dung demo game bao gem: Car Racing: thir nghiem he theing va cham vat ly, Minimap, 2D GUI, Bens Dream: Demo game FPS, Map Model, Post rendering, He thong nhiem vu, chuyen man chaff DeDust: thu nghiem he thong RPG, he thong nhiem vu, he thong Al, Particle, Scripting, Terrain, Scene Editor, Ky thuat ghep model va dia hinh Vii cac game duqc )(ay dung va thu nghiem, nh6m da c6 the kiem nghiem ducrc kha nang cha framework Deng thai veil viec xay dung game chi thing ding chimg to chive lqi ich ctia framework KET LUAN veil ket qua da dot dirk, Game Framework da c6 the duct cliing de xay dung met s6 game veri quy m6 vira va nho Nh6m dang va se co gang cai thien hieu suit dm framework ding nhu viec xay dung mot game editor true dang hon Nhom hr tin co the,tiep hic phat trial game quan hon gihp lap trinh vien c6 the xay dung game the ap dung ket qua cac du an game thus te han nira va co framework hoan chinh a LOT CAM ON Nhom thisc hien xin girl 16i cam an vo cling sau sac den IS Tran Minh Trik ngueri luon theo sat va Ong vien va din cluang de nh6m co the hoan duct luan van Nh6m ding gal hal cam an den nhang thay ce twang Doi Hoc Khoa Hoc Tu Nhien Thanh Ph6 HO Chi Minh da truyen day nhimg kien thirc de` nhom co dirk ket qua nhu hem TAI LIEU THAM KHAO Panda3D Community Rendering Antialiased Shadows with Depth Maps, San Rafael, CA: Pixar, 1987 Nvidia Gems 207 ... hoc game engine de tang kha Wang tuong thich Ket qua sau xay dung, nh6m kha bAt nger vi kien tr6c da xay nen rat giong voi game engine Unity3D Qua trinh xdy dung game thus nghiem va bo sung framework. .. trinh xay dung game ding nhu de clang han viec xay dung Map Editor, Game Editor, nhom xay dung he thong Game Factory giiip xay dtmg hau het cac doi Wang game va ket not vai Game Framework, he... da dot dirk, Game Framework da c6 the duct cliing de xay dung met s6 game veri quy m6 vira va nho Nh6m dang va se co gang cai thien hieu suit dm framework ding nhu viec xay dung mot game editor