From c33adf9ebaa0cf9bd8c9b3e8ec98a0d3726263ff Mon Sep 17 00:00:00 2001
From: fremag <fremag.gh@gmail.com>
Date: Mon, 19 Feb 2024 22:17:33 +0100
Subject: [PATCH] Chap 15: triangles (smooth triangles)

---
 img/teapot_smooth.png                         | Bin 0 -> 45248 bytes
 ray-tracer-cli/src/main.rs                    |   4 +-
 ray-tracer-cli/src/scenes/mod.rs              |   1 +
 .../src/scenes/smooth_teapot_scene.rs         |  43 +++++++++++++
 ray-tracer-lib/src/obj_reader.rs              |  60 ++++++++++++++----
 ray-tracer-lib/src/shapes/smooth_triangle.rs  |   4 --
 ray-tracer-lib/src/tests/obj_reader_tests.rs  |  47 +++++++++++++-
 7 files changed, 142 insertions(+), 17 deletions(-)
 create mode 100644 img/teapot_smooth.png
 create mode 100644 ray-tracer-cli/src/scenes/smooth_teapot_scene.rs

diff --git a/img/teapot_smooth.png b/img/teapot_smooth.png
new file mode 100644
index 0000000000000000000000000000000000000000..3ddd9d38884860330c8f9d6d0d036131666b90a0
GIT binary patch
literal 45248
zcmeIb3v^ZGwKg13iwYP)D;~K75lX3*P*6ZFiKjv}c%j9EctRj50%Cv|kvqwzRk@T3
z7N`^uQfq-~PKbyJ*JMKzjh0JPBmn~1kZ2-=+z7dmWbf~J=6u)MYX@w5#`ym+zA?V8
zvAYS>?7h}}=R4;!pLuzg|MJO4+TVQF%|Ssy?IRu?F(xRe)m!}Ejji!7!Drsx7!>s3
z(ufiN`Cs!|m7Q(%R?mplJtI1<_+b6MM@Ed8GG)rsV{y&pRd@LRkLy)_^tf^SmMK$y
z@rx0!@7uWk=A6f;jGH@q?%dHi{L07wy!*ljN!zb@TE!h7J8nXa`?^B>b?*gNn=Jfw
z_Ho}W%lOw1d|hwlU&s1}cIRJ{ymKFl!e7TVS1kVb2mD_u1Md?VrTa2s25$Vrm>xZP
z^o$G7Pn$7yYguk&OmgbLCyotXSz2>tQdsdMETHQFEO+{63Ez%On7reeS0{{%xo^ve
z5hH?D?@lZ`{PCvs>re8Ra<@*~uytCO?6@vVpL-@H@6flGDl03^Cv>_AisS9&zI3nq
zl?z|Lf8@xKPoDpB_Jq9ITh@;GEfjzE;WYWAWA{%kzW<41e6`CQyfU-j|Kyd{EJ%;)
zJ1*(?!Gj0AUT;A`L3&+5V@<TL1}fI}HQZjO3wf^QyqtF)+?k#}JTYhL&j0q*rRI(q
zHDbi;J^SvQkv|8UNgwL|CyEBIEE?P{vtK)WY-(ik(@EdHGJhVg-Me_rJ@>aa_Lc7~
zeZ+P7kv;h28=?21Ck7=H4GO#bZt(E9!mQlf+~;@v@yL`3dB-Ck>$Bx{-23z$&%EqT
zPfvgD&d8W!_rJ-n=!dV+TaQeB`_Q*ve);9ObLa2?xce=Stvi|+?#dZn*VOFsHBXp(
z=997GhP$wl790#~SQFlGF4$H7`I_Fin@%e}nLe;|@AlHYe3<LI-}K>(p#ui&OwEnl
zD6-zL<heWff`s@e$MH4xH{omM%$=LFY3SU#Gjl__bt{;iHvs~xUP^&oEGsB4>*lRo
znmBC!D={%KJDxc_W#{(Nmy*qLOusH|z<>ecxu~a%%vKgHNbk1fIZI}*zWOSJ_VUXg
z;x_l~Tj*_S$i3_3ya{t5ubdF9^~Ar<U9fHL-r@~0bLPw$IB?({D@NvFy^lxU16_+~
zJv~2d)B5Dp!|(7p;;1v(ap@CN%wn$-i9uXN-RcH+JG*^fIX|&Gl(6}+g2MX>3cvY$
zO@4lUb;F{88)u6)t{u~})oSyh(BK)@{!pv|u069#c6(Ip>HQ$~E9-_8|7_Ksb4xm>
z?b<bH;K1VQ`MlMUBl?VlK~9^IfAsL->7w3u$$fUgUG{62bo`~%$gXnTx9&0fChz1<
zxpCsfPbOYGyncZ5Cf{7P?5&=k4}5lLpj?eE?upv|bW+<+eJkIA_VtAkji%-7bYz9Q
zeuceAm*b<cB)@pQXT;(e`Rmt1fZTC%S5N^FAJ+eq6`kfkIrq%$PB7S^4`a<&T>K=u
z>66j#4BoM4&x46M`?e>gzCEVL&pSTb`NibPQz)!y)FiV4-@dXZs_(i(y@JhhhIW+A
zKXdoFB{AFg6xUZ3b?)4G=gI%6XoONey7~ofFaMr3g1K+qq2}iJ&Bu(GABB6UNr}sB
zKj`!;hwjT>*){*fiSHUSM6VzH2ue*=6E#@!T>8XNtp6+XMZ-S3?zHOdikqQXzEOit
zznpnbx2k26vRB@B$BK-Km}Kn0#bsC@SPb2EKV5g|_)D{2e)(l@(|l`Lyg!s1sCy-}
z?v=cW3(IP2YZrx8G-l-fBx1~zQ=3%@Mft*p3>h+P*s#HacfWkDb=|(w?fYo|x>EHv
z?*C-`{!h*y+cs#>ppxqO$q)4CdGhGt+*AG96%EGXi6PnTcDv4hwdKs2Gsj=L!Q8t0
zF512)Cf3c4uH)XWD$2$uG-iZu!J{u!dpQ_ii)--U6KBp0cX^w-&OO~K$gE+?65c{m
zT|z}&#`&!qS9Tqm_RLTBZeMf#3lO`Qnas@0*Is)K76=M-dafsaSHXgN&FcB?poZ_d
zk~O+1Yw56W?(Y5MJ0~Ffy?uKu=H`RaJe`DJ$M52vXO$d1Gb?8}e!cYM&Z!luh@RGz
z{L_hb^Aqa|L%oIDMkf}WK7Fw<V{Pjfis>a5?1}2urOU;#vI&sc#gjX6+j&oIzO=S?
zSk-d#2(iDGN5F4~CVVn((I+t}>2nq?Tu9&3bF$+@qV~Re{%>!zg~jqf0#$$MJ^cJ=
z?>D2(mN0kXuIlWLt3EO)WaymflP0|fCA#^SF`KrYudI9-cha?MSw%%fSs4spdBMVp
z^y;HS6Pv#2?fYz1(~VF<y^}T3^>0Mat9&hFQDN3{IHQx(b7ybrd0<Y=j4s*O*Ar8M
zgM;hj0z}H$JbWQ6+wiL8qnmymQs0W3vpr?9z<v2K_p4>8dF2-`PM<y<CNwgp&&ZB%
ztzZA3`cHTmY=rmTdrwzqMW@is;Vv)C*_Bf%&5`_^HvF8s!eRF3U;5_rva+&Ip8wg#
zBYU^s3q#y9f;(ftEZv@e+&XPf)Ge7GM)k$LVS~UrmY0{)75*@~>WAFr+##VGLK=P_
za`M!vQzuURF{gwEHzv8muSWg;dgz+%2v-)VQQti=1+F^zX>2#xvM#(96_mtxvkXVu
znuo(LKP+bUc;r60sUCk`+k-eYYD(wN9?wr3AA=Vj_bK|<m6Kv-+_}Wqk~^0`kWqcZ
zs|SRyfouCUH{h_0>Y?sgYO|AJgGTk)vUV9RK;Mqtm$&(F1|UfO`e}G*Iv*QVyaeO>
zX&kh*OZK!4pT>1ra&7=V7VfzOHu5L+Z^t&gO-n$R-=`O_46nuJLrby;KFd!fwh@~N
zv#A&U`^YJ2a29g=;xY7Qz3zvjYJ53^;*Sjy7caNSyS%-_>YgKEd{@KQ1Vse#j@t*N
zwaSMvmT!Q3PaS>SdVm>I0XzIx%zXp4!Bkhx3a^{B=Yp?8)>z-tMa=*%GzS9*()BKz
zck0;Yry&$zt4DupzA)mqH$DV;;|uXx+_T$59iQD;^1{YLaM7*swb$u4>pQ+&FdQ*i
z+JIv)%v;L{<LSM^zI!d~#SL4biI1)8i~SY9%ahQ!G~v6YuN?PvSeE3it1piAPWe;n
z6dL2A!M9}gdt%Luv!`NG1nL1vMRd5E3(tqw7w%~H;~m#U6poyP+nKd~#(}gM2SnQV
z!AQja1K=GM@D%*Mg)L~&((b$It+nFFK8=Ib9lWsi;-<L;4F^M-4o20ug9<<J&Ce(=
z&6t@QSyo=YJ+Jh+JArdv*)u))Bp-IbvD(fV=Q`&`-t+U-f6*0(CgC0*>e&6Jx2}J*
zwJcLf&*e~qoX-c=?L0DB)(f}U`NQ@n((szmS=6q@EsL^H5qCnZi(=AqV`SlXM+5Xm
z#sJzL9a^ynCNX6DmBbt3j{DjrHlIw4&!4diW@o0$<@@ftA5)2WRTqA;;=uX=Q^PLZ
z6W*Vy3HSps;^st+qJFge5WsiD>Cqi?R`uMxX2#}_{L?uD*PSfx55?-cv;B!5V5zar
zSZ%Z5y5@S{lmVc#T+rpR;*GICn4Z7V($*1qvkxpt_r5;5{&m3G6-nNWcW=KETQfGg
zW~|%S==RmQe07bDjr*TXY}}KWUl%WsNA+88Y<<u2-pkv(mE~SF1NT-wbz>uM47)!_
z6c9hC9Py?45}BISmnDJ-V8R5V0$))vh7RcU2W-_2KTFJkBZMs@+MadX)fs!@iG)kN
zUHyA>tJ|F&kKHjm^aR|+xV3~U-61G$JV?sdF`{YT$>RAZid#|fa9h|9i=ln%PEuOj
zlCs2DT>ld5O^I>gvNFoZ><706I}n3y!w?~N_5@Gess&%acXZRxx*MV^Z-}b#To-rT
zwKSyp%aGyoFTK#`lUg9G0h_CS7h3<D(6bN5pUI1#kUUm5Xwzdot74zu*y#Xu4X@y5
zDXoOGJ%=sLi<)9KF78h^i&`fj7~LHLHG#>JQ|G+;>c@yj048YjVEj@eCl_zbIKOda
z(e9|et5&Y;8@0Rgh^OfYZZU|r7~On4dQ(nGyl35*o~_chO^fWiuI}`#(Vn^$pZu9V
za^1<duYa`ghMh;QJMn{{{HA+Fd=K*e<_A&ZbaNaS7<583F9?!z$TA;0h6bMo2Zrqw
zZuH|bk(~*MpSyD<?q<T?%g=|_J`dcS#pn%DP`k`m_6!qPv$rCnF`+5j^-hvE3HldW
zR}}6o>OFe%J2@o)l55ArC^m+%piz#Q;o{}{YRh9lOPSD^BW));Bng|lClNd2Nb~gS
zccxd%-$Vmuh35x73&q5r4ncDZ;gca~VsF(yiJ{iqPb|D<t+<1e45<{02@noZXy2_{
zSkZsv)TetIhvUBA*nPo$I<)z#P+(8QuXXXsscY%PV6SN)7xyfmDn1rgALf3*EDaF4
zbt62gsBnM%So-Y_wP<xfWo|u;b=&f1=MV9Cw5ejL=w<XpUjtya{p9q48;@Mcs6cQy
zgwcQ)T7PK4$RJY9I0FozM1grgdVq*ce@|(;dED@Ap^YDfCZ*0n0F^4Hd1f+#$dtyt
zDc2EjdGEV*Tyq}2qA>%we+ojxl4^#CTp_qw?BBcl^yoSAdYaqKYkE>&a1-=7xEnD_
z^g`of1ff26C;YZXPxkxL=jI(B7eCfoI<+Y@c`(x0GP;$0@Jd_pjf4yQ?lGe@jKn`Y
z{SYjscpO<+akmsZE{4c42noKn0%b%=CRQdj@rYbYmo9aAOI!)Sc2%xZgBE2Dx*X52
zeE&C(WqkAgQ`?^0JZ#T1KSea?shf}|1`7`iA54gnUrQzDw;a1anO=#HSM}X@FAAVW
zD1i7wIEA@jI~o>wyH!+m8#V~`Ej6KdYQmIBlO{>X9T}51TVTtUwH-SUrU7E~__^g}
z<JR}|_A<IYS#};RKg=wh7NqUppq9+Ahp*%IHR|s~2ZRH%Yt{ckL~k<ypUwzS2%r0(
zu)|44&r2B)8fpRi`<CEfa0zuwUG+<wqA$1iRJPyt<fb8WE}jrFB;GUEB847p-Q(wD
zMg%SX%d%xR5-b4LD6{#Hgo#Ci%l+8AWb?v=y16cSRqU^Ra&xdqh>IfXMpS2b7VI<b
zGN9s-uZyQQLLw&WyC&<pM+;lg6u^|pvt#F|>$JBJj2T2{xlwx3e05a=-&$`r5B^1k
zW1t(wb@;GBi6SdeD+#&@%B`1hFl1sRbOqeUMQi-6@9o(7C9%7)o2W}WcmdtZmdcGJ
z_@x)*E)qBpln)V2newD+ZI^6~fuTrxdE)EN;5D~kehCrMI#<KG0}QX*zP|f{=bJ+r
z7Y_kLA{Yktft?eM0t{ZhyE&hMTu}YHAy?il%3c+E#|lO}6J#IXhg$%mhwjN`=^oY%
zFiHSa&#Iu+^E!y1HCELxQBgq4?TdvKL5gVU&}eNHrK##EN-<D{HWHf}Iw-r_rnD@f
zDkDMf@@ZTYLzGM3efM4Yz6x)W`^vrE(e(^P$IsmJEfDG%uxh7INB#5;I1{pEqxz)g
zYFM$nF`_U5ObwTcfrHRxxurGAl7USGO9n2W@5KG{YA>Edv{<)!Vfp+EPbJ>W*uCk{
zt>cD=lXB?fs_GOwefrm6{IE-xFIyJWvlXzoAMHMbNTRs9;rSh4HO%weBXX7h8j%CQ
z^BAxt#LrkFSta5b0Kfe=8Xsn1J%e88v49aEQp>!HU{$1KYDL1<wsy#tKN9ixS1V}g
zEKQZeA`0O{@h*ApnZD~_5clod=dN4m&h{k$97fmtsm<{3z+jCZKYruJjbMD@J$VuW
zViP{PI&1Ql+sk)FCg+yUX2={zN(=-PImnlk4XCJyMl25(zOL_tAs{rUxzu31K`Y7V
zMI)!soN!@V!b@R^IVIKfGok89X*z&9OI`rP)mMIPXGHz3{9W<+i}+t_T+1iJ?U<Mk
zR_D>*(&Sh#nuZ8LvDD#rol*``fT*CrNLdUlepZZ-Pd=JIi=b&17*08^wA}u7kSZor
zR2gikTG5wCNRb7QP>ReHf@~qyq8t7Yea^Kfw&~N@{olSlo|YjsH5I1enV*V37eql3
zr#{`c^OEQGL_Mh=BoYQ&BOe3&R||dusyji%OlkpyM@D1$P()A#1>H#hRHZDbcU7!Q
zIKK{GBE%nd2V{nb&I;!y{@8}fjWonyb4#ilrVmUqyHX=+(PZ)V68)-x5tT}ml{Fb@
zfS%q5M81ayK5HXf>Md1QY^``LQD8s={G*2Bh_FP!hY>a7(#T&tINyW<I0OR>uP$6P
zVSwOv+f&(yO_&x~Ol)B<*v=b#G4YMNT#Zi*I`e8%eN}RD@|$nI*|4afE?!a&LR{`E
z9a6r_?GEQE9lO7M=7-eh8Z1)s(|`tuioj6ef&%Y-`P|<?h>-|_4kHk4O<v3Qi)Fr)
zge%)zS2o0Ke-N(l(@#HL6qaK18aL`jN5qampbhcdb!jf9P{I;nghA>H4=aKHk45pJ
z%htL?bZ7-*anoCPF;Ik=7}h&tSa{m}C)LH#|6AzXFJyo0<q)!HF2in$*TU{jb0H8w
zB`kJ>hJwi)qr#+$zy{dlD)evHuDYS_>Y+`cm;XDl=D&j%p2)<8-V5gvJ7dNSA;N^2
zrO(FAACKH~5!@Wf8-Za0k;tAW16RQMLXkslEhc3LL8l{PK!6h@W_VwBZ}b(I{iIEs
zHVHpAW#@l$(=#Ll71C)`$GSCHvsPao?x`L=_2@h6VNDwLm+qyuz|AgS))G31Ar{#>
z#2XwjY%yc+VZDJMU>L;k2*?ttTG2L@ndAU<7*-+B!3phRtFQHgUybSSEYxV5VuOnb
zB81vN$aDpfc_ZU>-`I@Gw(iQigXez+27$~kh}vg<is$!dxc-#;lbilX_VYth6+*}w
z3C~6d>2|xZr!|m-kthJYYgyv*(+^5&B|NCmx4tv@{XwqkL8D<Qlz@D+us?wAKHM_k
zt`awk3G{`EQX~5pB;lf?e|m>u2u0qE4QxoE*oM3r5sto~&Fcx-+{-C$4TSAj*!Fpp
zZ~GHMXi?VuehW_o=&>3O*p8Ethp5yRr>7ao7OG5ZEH6p_30b@egzRYF<<SkEBB1`q
zy48NTbkpFt!V^0tS-G1UBwf^EuHL)7=%eQ5W|MR=;27yW#JOPZ^Yiz?;{l5x0aLLD
z*cP@326<my!NOn5V)k3+8=XMP<<riwr%#@Qo^H9lyUn)I%4_m)@JfJ9b3Oi0#~|z>
zuz(SOXaHzqfPqK#86AJ&DP#wc#1M;4MOVC`Ku+XtoFU|Hskx9juHn$}2t-&Eu_LUs
zO*Q}B@xtm~<qM(Of$mT&w5)+`tr>u-ArYW#M}WcvX++^F-IcJy*DDMharLi2yF8E=
zH4D~SwmG6}qvMDu{#-ibYzq^TS1OK>M7`|=k-}J5zNZ8zF$4C4-caN|4|1QmuPhB-
zAfuv}FcVh(PGWOS)SB!g{-890=iuLGT&KJ%q^e9cVC7#^kCs&5*853>!wrijs?IZS
zItmLzdJhC2xk8IACD~^)eSo9Updn$cJ`&|t4{7ZI<0_rP7s;F5r-mF`0@_Xr)p^-A
zMi^~A0MmL*-a1^RSpq>JaFsv^&B#Cx_Z7vT&W=C*UP$wIv;tYnZ_@-F@&^QcG0E7y
zAHb`@IxR?_NnArpLGqu-Zh%t2mLSaA`|325s?dNVYldamJQOh<kzRP)Lf@Or1|ej;
zu=i+fzjpAiZQ8UUG{nB~cs$r^at$3aL=xFAi3O`!FdQibdM1K{J_gtQ1in)E2dv0n
zQ!|<o;UEU(y=n|fkZv!QBo`#WQj29+^oK}WC#<f|gI5+#5lbK@2AWS|&U%S!b?gN!
zjnfh-C?v;jn<3t*T(n23MivaWJnB=9^fUoDK*vj|;K@#%In(@J_?3IS*^L`g8a8Z<
z&1m@g{im{5g?J>m(dT>f#)yZoynCbiE`1IuA^tu=cPiLE1ue1==fBe2&_ddJL^8Y1
z%*ki0=<1v03x;oT`@UEj_Ugcmsk!)NElYT#ZKtEaHwc5^CMGI&SM;;st2LXmTz`%A
z7ROGct@pcDVZK!BTcU4Aj6?MOd$7iYL-4L*z9DBrVJK!%8q}%zV)~Var_2M@UX71z
zQ9qF(5zj!RqP|D-S-ha>I8XhXp0lpB(5AnIF8b`@Zm$#{UQh6XYx?xd@gAv5xjo{c
z5trlLf(dDv!SaaZg1JWx0jxYEjH{u#gti`brZg>o=1@dBBIhBH^XPehyA3Y;=}`}2
zZQ&eXl34gretHj}WC5e0)3b6A64iaYZTOp=#1(rkkYItkmdX!52)9iOtqXmD9p$u;
z^Oq-z6Y&2PHtYc2gP9Pzh(J+!BcbS=QicZOueO8tD>Ud``2<yF@kjqF*NO@Pnqn$V
zed2{<;myZFSZ?y*tYWR*Ku`%ys%V6Hd7#Jc>0ybhNNY1grlb=~5R9N1Ln1&&i3vpr
zgL0+R?Trz6xmy?dmTntfHVu(~Y8tQ(N>O0eB#Djm7Jixyg@zlbIK5|9@&j6r;LfMR
zCrD&GAhwe1B18)|MlO@)BNNBmn=NCQ?^ZplLU+(;bU4@+5#IxpolwhmEP0j9aKJ>G
zbAK$U{F3GAZEIn8Ioj~6fH=@gyG+4&qRWs>Gg4)(eD}m3&R%r*y>2ysWsSz=^T&n`
z9csnxG>b4B2Ns3JCU@=D4dEoQJhWLp!cP91{6DM(6Zl9hc%%TqH}Y0ra8qt<bM9;1
zF8?XARF$9Q0mwabiJ|r^lfVYpj`i7C5{D0{s;KSisp<-Me#8;4Z&{0Y-ExwapER74
z7-q?E_FZ#5491hI=Yi0B2Ua_)?E_CdrL3}~S}mNSSuj6TxymrNuo<?yB=ae`WrXc?
zE*2s;1#EWdkg=^2wY$Bg?xVh86*UtpYREhxtUQKF5Ur^JvxiicDXaNg?eu|%4ub)-
zqa7`0Q8pNi2t#$)S%MVQCirS&eRu4J=;~8mt9PAcJ}$-Wy|N5hc@qYe?=D(76mMXr
z_82*%%uQ9<^?FF-4&)0@YbFI6qdd7EuK+d%GEX97`ak4Ghau<*CK`NbL}lpbR6vsV
z7AR3gZXsrbkQ(?{8B%Bb?#CrY#>NF|B!+u)SZ9O8O^u&mImFkEq&1s@t0NLGM=<%5
zl3sfXVy0=HIkT@u&G&8@as4l2Zh+^~(DcKJDX0!~VsO}HQcbGK6I>tyXcelW+gJGx
zg!rmL62sz8)h<X6gSUg*E8mZG094_MG}q==;18_PB`L)6-qUm$*20k71Vg0jVY2*}
z$vmq?c7VN`f_hf9ezf)U>ec|@%U#RMrfndiG<+%f5V6KBJRi}vWsvFfS}-JPj^*7V
z?*q6I+xgkzMQu`Esgz=XFLG7XC9LvA6jU@9RP0z4e-ZUqFT?o(%}&?Iy`)+UGD&uz
zFH%^NzCl5ilw+|-5<DTSEV(=q(KHp!XFT|0Lerp!n!+pFxGLMAMCb?blaMW9_?L-6
z7z@GM8G{V}cT460DeY?77oRsbJ`a0|_E^K2QSY}5XZ+kL#N0y0vAz2AnD^!5V9gI{
zeo|u^&3yzqJcW3Cr%kq*J*-M#tp;g6fD1cCLQ_l}Z5d<)G<Gt})VaW0p;&RZ#2Y^g
z`}V1@Z{H1$|BeC8mCNT5&`8BA$bYc@w_{6AyK_nIDWm(cIKj8vLLwR<x~lLKN{bei
z_Q6}>W5rORyG^0**Pez=o;|R%JqkgFgIp~+x@jK*O#(NXV_*vW3wXfO5dFNxycyT7
z#QNol&jiHiEfrXaX}<eo^j56xK%nAY{+DHEM;=2Stq*rTStrRrT}yWrOz_?B=8O@h
z9^04T`9SrhY%K{x>#R5((K={lLV-(g;2_~$2Yu~AF8^o9<-a~M`~p1A&{@TYm*3V~
z3pa%pVZQ0VM*YW<=NNT@+fK<7;uV3O0kuH4`x&K}T_55-7Xpd)_2zf?hSaA<H>Lu3
zKiK2bxcvy`VMyrZxFqm&xCJOQOH_o`-urcA(MLwc-t&pT#!?k2HbS#Iwvo`XA<gW;
z(`m>7`qV@rAXPesZh(>@dkH+ow1SuglK)Dd`Z1fJ38TL>6n;+63D{^Mgc14PM1Ucu
zMbbjuL&j&%o+Sy~ka+G`SlKbS`!*96mZh3RUvY7<m_g)L-uim>84@Xg674eOmytg}
zK!<oitiwKnTPCSu+_f>1q;mDn@?971s}A>_Z4<t`qVe!)jrSl+uqCWg1}vs$40k2O
z##T_Za}rBbx``DHn=2kfeVjlE-HVbwlYF4y2<9Yu+F_nD(-D+zf2kH(KuA1t4Y;?-
zC|#i46+OPD0XFoW!Nrs=GcC%VLW6Bf!L@RDIXVWcJXt-yGhzU5YU?pnShjfx>RQBB
z&Taf6xcQ5v;Z5gQj|y_{NtEaA+_}>voHc-j@*V>vgfcxiIL%o>^HA0e6`n`48kgM_
zw5VINRf8Ue`9%Qv-l|34+=G&`$QY~&Xl&@LsVb#G#&4p=UE_7uT4LE`h1@x)5FP!~
zJ5~guVha)z7dwCiRajqI0>)T+&Fvlbe>Q!zF~nkpEvzOc!x=|2xnk2wOcFw0HTcll
z5*rkgoc7ydvBM4!A#zqBqcn123Jk?7d-j8^PxLh;R(mdNDmcHXTl061cwWwIPdTHk
zewC1@+9rTp!0mskXe7^oibx9)1G{NCEcB5kl^NHvT^=u?iSYi-K*Wox!ImC!Hyr{p
zc?_Hdf^QfWXf;DX$eD`--)Ayl`{z}mFg7_=tVLoXti@&_sU`kF4G9TGCbwxYT1L_W
z*bsw&GSy5=4T>&&cNGnWhoZ4?ysk19*Ptt|Wsqr^ox0o-6~B}W(#+On*7YDf!xOt3
z_qh+blAy@&bq|LufM#z(gog@e4L>x(OZv;Qpd}<L{H_w2R|e1J<*3DH;E*5dZm#f_
zS8T3)y?13egSzng*TM(SzVKgpvxVKz{J>+dF0c!3SY}ual;)be0q_KkJKdz`+(KkA
zfy;r&(Fnrw3Y4pC$-T=@;Gr%-$vM1hv7nX7YG$IPsT2XW_kmC2pnCrd4XX;<ihMPq
zutPjzYYjIf^e|S;@N=xxk+6)2;CDs4rDp_+47lITSD#(&`9>7E;j>2yj3T2v#hDGD
zB1ddlE0E2UWW(avRmT%im`!wxKw|Udzw~ad3i18S_f&VUtDbE%ApPEjMb;&SgiXTB
zwloU**y4deI(EZWQQ{=R3b1Yt>feGDVlsrOwvBR&WD6_!7Ie6Kx$8{^Nq+}yvv}y1
z$wJ#^ICu&&Lqb1mach9vGd|Bmc4Cvs2H9+=Lyb|gFD4n=w6X++Kuv=h&IWtWE=8jc
z0|&oJPECCvF{d#jC3VzqmuWkUlwrfxz$DvJnnwTzM4U74(*a%tb+yz+*UjL8!mDlz
zuljK5@aeN=J@pl$j$y-2dpy)(=)eEh{g#5XHU3}R!zb?JeyYMzvf(hw8a}H&D_3m-
zJYcuxo>eKNJ-rW*dQ8ogkVEmCq+_j|mMvtvwxC4>;`DoV3S5a<r8(jKXqD{%k2x)=
z*Ou}Et9oN@Ldo3vipnP|E<Y);9pYRx0@Q-7AmI#34RI_RtI!k>fpV=4Tm2caQy_`Y
zoJpToRp_u7DZVQyiC4bfb}9TuSPWEw$If5BZa%5Jbz`<pgHZ+^fqPR(LaoNHL*V$~
zV?;0@hM>ues0%&cEX*ibNDnNzHFf2Z$EDjt35O<M{LCBl*)EXL+FjqM)jfXWLaip;
z{{sl&tU@CRLqytsrb57+BoSLcWt()f(Q*J(HunW>ws;|!WvwxQac-9>EHGf)O<*3W
zJ+3{_=imgkIiN{l;;bVNp!;Jm64e6bSgCSXhYmkeq@oQh8stGZK)mcFVHABjF8emv
zWrDX7*Bx2D&ZsDI#~*nh4_JZCFMiq?;<b5EmGi4G8ZgdKbhe*0l{VL}^3@Al52%di
zxNpnVY`rtq6Oh3=j)xeFpvWuw;V~mBQ&`sbe(DrRl-}=qp|U|3{`85)B_<ZJk(`P4
zob?7OX-(0-&yoYb_tS<KSl8;39N)Lm-d?^`fQ*9k4EGpLLon}z#b1FB1j1F8vve;C
zTJmY)KfW5t0VEj9G1_(In2ir}epBx%>g~GJI|La?#O5Qj2CoFTVPUMxg*1y+)=;A%
za<w8XPsm2wj7s|J(am2AVAdQCxi>A88P#XCzzi*zSK7kL%u3V;*bJ641v$j}ajXIO
zI&!BepZ$K0^ZS8D%S;t)Ny}uFGx!srVM-1JXb7~D!X#HR)j0z-Guy!m4M3)U*!)XK
z)S^Vm)F+|0P)el<Gz?*(oG=hCdz)aM+4T_Z{WiK_PX3IhRiNC87^6g=`{BfMNVdd#
zcI6@+gN%qKMX0#K^h3f3&)HB31|Pu<Tb*b*qKo#Si&iT|5q^FT+%O!crl3eE+l4ca
zcg%@EHGBSQ^s8jK$4psSbmCu^wqLPZCP<8KUzH%y*i;fErb$v5cdeq)MxZ@WNYsrc
z^r%m{G_#_1<}S4CkrW0`1ST$VaNP4#r%s(UYgSldU3@gED-H`4q9g{gvA5h};uG@q
zu&>}Q>zUM`)%e!cBg@wt@^;TDdUH_UJK9DR4MxKjNNE&>GJmL{9}Ko;o=n|MEONI3
zI^HDPIo`o#h*q20S!1L%$d-5E?ZtRVsonaXo0s;S7?dB>{U$)brhD0VW^6UBw7v{0
z=a09=ITCV6*@w-?35^e3zA6pw%tuk&S1Gre5@0;w50I7!d|5?N9sO-)cvEJq>9T}R
zM1A})*lMU9>WWyA^@|aGCbPXt^M%@^2%Ny6&KMDdgDebimCQ|8>U;NAUt&{bu&<K+
zlJJRnkppI>PYgkimraFeybg!R^b|e{zLiuGxjn4-{?FKp@rtR=V}J{Umx^LhJG&|!
zQC2$2UuR%(N7Zj-RZD`EP_I{hX1|XKLF~jIYx~rM<K6kX2FGkV4jd^d2g6~bJ(abU
z^>$R8N2TNe>`7%})434u-M(H0ji~8IvrHHWBog_Xhs{STAc#5?2}o%_I$_EPV^9r-
zFj}1)BD`S;?~wdJyi&`cCCAs4!}411(w{fEE<Ko7{a{K>WXf!a4|Px{Hg7!-o(_cz
zVzcL}cB{DI9QMI@<D(L5Ki)>mwEsoPWn<+@geEd;qh!7<Zq~Fi^`|{(_`$9Zvn1a3
zM`%2G7?%BPbPm$&qTPtSjcWfdL7!1=McGnWqiqdJi^6-i@RAG=NmodQ3cgCxOCE2T
zr`Vmv4xeaOa}5kg*z5~mgR(Q>i%FfV5z3Ak7tOE2{1QPxufYo;a%qILU8ljYN`4^c
zje1vccEZJMwy>iO6ji^6vBX#;z&*cwq0zA3xbRWTyaMqtkwUvYQiu{XaX`D-w#h~g
zy#2xo!dn(`_#I>rOG;VCG1`ck4}B5}tfZYq-CdOhG#>K%Y_`LWT#H#E-eHL}z=+kn
z2|HrSm;gpd|B}h9A6?rjq_WkZf_X*MY9u<K)!6(M=unje3JddAPhX{Q(X<>R8i6Vz
zlWh>hFt)s~-i}7sx93)0&Z6>?gz}h-;+Tn8Lpa+51S2TOeo@<WKr#_kL*80aZPK+&
z%#L1o>e##vO*Zaxpb@d#1lYWQLmX*s%SEDL$!73Cdi*G}-{Z$#psDzWIV%1KE%GSe
z8!)c7n;;x{6eDS+@oee?c@#-gq29=gq|jR5<M56ZbI{ZtWmr;Z_6~HWTV;AONC4pj
z$mlNFC?1g3U1VWGAu5ANU}=d+m^xsJvDkHgmM`227%u|cOvpQliX^o_FxPt7Dh?|`
z<`hfEIEWZ~|1Vju&Sn;=Pb$!;5g8Rpa1;2+6(DUp!F|(PpqS<b!8b;%zP&@!M%4K{
zv8L?s_1Zb%4`u$fz)`b-7R-hj5iZZqf=FdAZHTC~)@?|czIF(i&SaMTvr)7@=W>UT
zst#oFv^R$h(-8IyD>WFX+2S5ql6SRcZ*(_o6wUtfR-cdk&IK|1KaGh}&F=7J<ajBE
zSDi-O$w(bG1e)!)BuIRDk4HEEF!XCysg+&4=qLtzOuG-X=yU{|RkZ%mpufP7MniPQ
zG*dAN02#t#Vn85Z%2*<s@3SQIk`@&bnCiYZ`r}{~wb)h~)*)>1b0klr3J4<R|NW`@
zoGNyVko>2l*AR}(*Wx^_rj{-egcQ<90AK+eCmrM$%gf0(Az8vK0EtszkYG0XWcyxS
z=3AFQILJ8&SjH(k*Tc!8m>um!*jBt`d$4R37s^%<h{7&~pN|;5;L5SYqit(RaJR7A
z(#2wFHjtmcKd6O|Ol14C?=HY`@K0$=pTqbIVfg+DhZ<0XXXOJJ*NC7k|47RE8f<ld
zdYf8bB4(5m35^Oq(+7?0?7eLfbEg#aJA>n}^^ugt52g}T14+`wBRF&+vmd5hXyqNK
zYR#K?$r~YK7@J;`>qd!}n-D(nmMY&@DDKNnKZi!?BZEBqckX;@)aQp0A93i-ym_FV
zlqQ6?#rmO5k$oG;3m}oWu<*9Tc}$$Q_S<ia?2%3{X@$|MNUJhcLP_lh^jj2dl=;U}
zzh<F<p;oU-)~chlc~wmm_}NvY72gqG>Bz;{%(dNyfuN&VaNw5(NM1K@-8hp<epD`F
z!I6uRwhS4^u;NBUDrmfwlJ#4Vs;#Rd`y2pIe2jAVI_qkc<s0X@{DkN7S7;Vx5zMEb
z{-ECz$D|#WOcty*28^g(0n$-695^0r#Z#NeDdgm!cVSoJklETBW1trG+)4czAV@ff
zP)FH6QYAr;qP7uceE(<sFT6F=gEPO7<hYfS`QEgQ`b|mBXh`YzoBwKsqjnD1PE%wr
ziVnaac6?Rsa&X5mCn$mD1*?ine~>~Jb};woF#slsxmyg8B76pRrc#3ZXJs#Px8tGb
z9Q)MZX;tMr0kUKC@TPOY;fR=~58OGtU8bhX@X3%aE(Y**b<DC`OIOM1BB07z=M-_-
zq?$VM$P~lOGl7egjJdSsQ1j$c6J`Sx&cI?-JQ``R01R}}5fJY{iIEji{zLFBv^Ion
zGUj4jw3yWJCTh!DKtd$Ml+m@AKxaXMOfZr1x#4xEtFwBC{odD|m|)-jL;J{>C^H4*
z0N%vDfa%D{kq>N_Ie2B#@e2a(Aof_0O-%q8s5D?59g2}?TwH&<ZSw(4fAeLBmF^5H
zO`TYpI&<&&t?&$yF;l=L!ZzW8P2n&Wna6@4U#G;NeTM!)(ml}k%6AejKjM1T?)Rkp
zC0_$j$jIj!)T;@501eS`jXtqQI<l*}JBh=>=+FVQ>k7!#jef5um8jmTW}?!YY_DC-
zYjIb0ZcGfkiF>RT8R;<=4n(cH06ioJpn90P6kQpD!BR8lt*V>13esVv4P**J5AT>6
zgC7KzYslHFhjc$m8!5yG(@wTpohj43NU6^+P2S~2HQpV*802pnnP^~hqPzA~3{t*5
zpE&lh3<rRg!=I|9!jER0jWAd&SIr(?9>-K>a3wqO#htc@Hy!Y$r=OAaGb)bU`eICQ
z^VTqjl@<`+vqXflSGbOM>!tlOR}<i7T8T5E<1ajwY8)-qvkFBx6~-@kw#p$ALiQF2
zA-vF2h5$buHPpo@y+QMrhW1zj{1q4e1+7FTM+j9z^4DSw(QXT`h;m2(k3>_chs>Fm
zl{kPQ9VvMah^WRLj|?m90D!b1rvyVbP^O|R0b)>GK<fGf-WePLhtAk_rk3SVrz`R^
z%JKoMQYGD>E#Qt(0%CNemr=<q*mi$mjyBJb3LiZNGvRy-m;;yEC##J>(TstO0jURn
z?Z~x|qlMH>hR3owQmDgS*`iL;FZpZ<i-6)l&w3ZT5?9qPTQwNG3epU?7KNdHotF$H
z!tg0vn4br8!|`8zCNs?=eRqKD$e)vkf-7Vh6L~10QI4akXgXR^>AtDZm%gg$vsH_V
zFp-amI>cI~XehAC-)))e54s!-md>1s$7r2ewCZh(s(lT)W!O7M=8_i2Zh~eo8UP{<
zVrM}Vc|?@6ORYnPgYE(n)ezSyNZDdpVD9Z|2dspp^!|c}Kn6flK6btbpputTEdPqN
z5#AM|XC`Y~Sk3!Q<KscvUD6q2un3UzqA;{*0YKuyPRHm0GPfSgdO@Ss^XU_V+4u<j
z4c}-oW16%nFv%Z}uh|pc@cHOs*KJv2D>+Fn1p_1&VE`A**m01G(nqBnt|Ca-dkh@p
zC1b&0@Wb%?UKIb#I%{05zfqcF9UyZ13Xr|CR;oK$7bYf9=z~;SdR&)n$ZEpS+p`dq
zyEP`qUpJ+q_d^?F<y$bg0r9DS0kojUvh{&wJ!oWxm)sMDEP)r3Slas*U}{mwA`k-L
zT6jq-Bqnvx%$x*^i|cu$81G;!2XHhBKBOsK?7fY`Cup&VvG)zXn>wtBV6Y+j2XV(I
zvjDJxb5@w5E-s#uHyega7C;>>>0P~qR>uNhq#E0DV7R`bJ8JrFmG?Wzz+D5$3%|%*
zvK>MB%d(|dtv}mPn_@Ve>TGl@$!M0Kz|;gpP=uF!St}vTIsWCEEV@-0sJOmG#sbW)
zMG#nVlr-xKyyRFDgh4R)-@ekoR9REZqO3<2Wg!dq1r;279GBGOfl%e#1?&SWbd*UZ
zPe-hV<zZ{KpUXn>0cJlO>0!X9S&e18!pq}UEo2Lfum7^7@;XjL<AflT*>8Xo0RzF}
zHINjzP(SCq@GqEvihn_}4%G3Y<h%vRNLxvbm9ue7^KuMeS^LwXkj;@S5}=8RAiZFb
z{xGI~+(*OPJq#-iQCk&lwDu0S3z_p@)a>Iwvw%JSg_(=*rw#mhXA2MeyJ{RhS2!Aw
zQ@C81?{j!X@ucwDNlap}ou9*L_F4_Qo;q2Hj0%*DV0Mkw!;ex}6Ac5fYtqe6{IXAm
zIXiSOq5mMZ${k$zL1X$MAldx%Gx@_W{A$&Z_$!weg@q?H)uZ}ipFkf4J+NmmXf$iV
z!P+bj*6s33DYY*_17!A!&a#oB6=zT-F4xpk*hOw6eNoTNHtcZpCZGo!CG%^s1TUd7
z>I7peAtVEKf!_d`?Vy`N>*lZJ1d!1%en9YMATt?=e85cFL9NOAV+rUenfGs7%kgO_
z!2;}m7>1rN_B5sDW>m;<T=BizOQl{m-XjD!bZ}H3!``DC%~_*jh+#AiqZFVkyPBj-
zi;K}_9y7DM79HA!lEV=4L?@>s0^0#Pdah-aG~)zIguD}zeYm=G*<X*rrp6X(RsFSm
zu-!!&;0IV(4<9@T!*aIV?)?KZzJ08^S(qGsISOb4#2>f`{t=mDaSFy4NWQ~S<YLVt
z1hp$<4%8R%J<P^!iS;A8oh9bqHFx1IMVn|81qEBnmB^b-3Y;Y2_EMPyLsEwmhOk09
zod7Y<v+M@9KoJX(&7RO2tO{f>_LimPZ?4bkEp-(Yn1cLZJZ;~`{hx0f#yA+0il+}m
zO${4iwb_>2K`+@6$g|*<+0z3nhMG@R5LtyWoN%&?ZSw@7PJiIX|CkQL`Xa$X;*dL$
z$=fEyT$)P#rzKtL7Bu#?LN8)}-2{F#+QKIogJhS^iPGwBz?cI6(6I&Sc?*X>i$pap
zj0pvGB9j2t0&h&n)243zyk#vXF_g;KmNJf{6|&{74rulU5iEUwN|v<@3)tw&f;uch
zn73+GiK|!E*qov@VdvMNM`&UN>p^t1BYX~_l-AZ@KCJve?hWnvQGGeK8jxVcNW;xq
zjojAY7_A++MuC^qj+3lMz2dSlH-~=2h5|OE-DFLMvQpX-1K7^kLZrqk`|T0jv&jBx
zhRxavrf|cb(q<$kAuBh*QcjGr#um++SATcNrMp*i%F!~8w@@cX*>jYZN!*W#DU<$n
zyi@QazQ!QOF`haJ#^SozMb9LN3JOeAVCuG*5VZJ7cgMmHN=m>(?3{?POU)dYzzkzZ
zc;E9VyA}8J2*NP@fRF%JNcGP`s_`ElzgFZcciU3)!S{e{5Y|T`U*rHWRkG8sXP}ZJ
zVho19hHen;2b>o?DggnVFJ(`U45>S!0sPfwep=SreZTl&iE`OhEUIs1xfyrcz5s=Z
zLQ#e_WrlY_8$@7(uGU(K^!dh0b!tEGw<_Czu~QWdm=^z_vqG8I1NFvkG}AT#-YjC(
z!qY|d9*mrATls$CmG@Jshon@$g#p9N6g>G33fB>W39KS00tx~a!cqt#6Q)Ti&Bv%6
zVrdZbTE@m$eIs(6L#1gz4#-?O163Rm__ebmzmUuknKqU5HEQlOgCgP=mkYsLAjqFP
zvC8f&x<^7Vqw7`-rk39Zp>}b<8U73qI=W%)=vD-An2;;22pIbGD{8t3T%J<0%sNjM
zk9%P+VB?FD8B|``9%Z0Ok3`@~T6$w-#L~xN1mO*h9Oj(25ccgvX16(Tx?q)pK+wTn
zLF6j$-0`tzB-Cb^->KOXK&cr@^Lwhy73<iwcChUg-4O_Y+X1ynjsbHLr-^U1dVq{}
z+b|ynUtBFIdxxBzy;fJ*b_CBb?>4{I(#g`e*c^|XDu6wVv7FICk0L>7nZ`bVE;4`t
z*)|B9NQO-+YzUb>VGui1WN^JbtU#;#Q8x1qB+RS{G9{Q-y$zeD={nzvySFcR7v~;?
z6?4j6NY%1O$eLm*!T}f{^_sw`sMQGve~0T;x^5b8czDzgSe8!6c?(Bcc_<mg0bS<o
zVAOlP237ynsB>>@kc@@1ea(WC-;){<IR}PQ`JBi}T#rjlh~aTe)wzL_>OE<}9W|u1
zA9S5~Asbo}w_f5u#v)8z%J~ooP1J$|E6W_<33&*@_$$&jVY9om78rQT5DJNDaF+4N
zl`{O#U^*(gUEFc^HzZ)#U)=P2bgCc=n3k4yB?INX!!iA#?>Yt&`(;+%uZ(wS*_|E0
z&KPdY9<gBvnh%dmCLfRMVB0Um*z|`~T5DmhBVPS}0gHiV837CiBPeU?snj6(O@$RH
z*`sHm3IPV%=&ualSaObY`hxPEm`bZL!R6tSJi|@eUd37mv{%V!h^z28s##byiiAIN
zwJhqda(6ELpwmHGg>=rTpVY1TkDS{HzGu>;A^=F3hFuAzyBGoQ_^V9)q|!ddmUl72
zLbW?%e@FBq-6t>!?@0IiEYOhx441e0P)>0`5)SP=_Dp5l`F&4=l@bAlf;8g2W<kGQ
z&96p6tOMRG%?*r#`n5yvUi6{Kc6}83L^(v8=u}5)#-Tn_0G$~IhzLbEDo&l(5S`U{
zrobGAx0H$NhUnn9<131h%zMJaI^Qi5FKiL~T~-F*3>V2(Bbk9@&&9wvTjw+wDQq#f
z5HR}LlIqVRK0303?hb0vaUISS;6<G?{qEWiNB}49OmKu{Y}MqNsdZFSiWOSR;9mV&
z3pj1jy4J8Bg`JL4XSV$Qj+lZ5fstL?bueFi5dhILh<5`cjS+RZY#X6>KxMOJv^fY#
zYbMa4V-ln+PJ+l5AaHycgi5u$Tj2+;H(9;!dSl$YH#Q=3gi06iD&ZgdQ?AzV3x#9G
zX(=(KdAPvV9qe|@S?j*sb#Fe1TFKEJ;ABsQSwO-vRZ*+OrNn~HN{K2$G%={A^{*vS
zWh|=|oLk2AUl61{IIU<fS|1X6Ly$t`Lo-#P!YL!Yaw2TV5CPI=8Vt;!zov?~SF6{k
zlR4gtIryWmH}s*Xnv}~NQVmigrIz3;FQF_C#uUe`$Rt6tUz~%Xl-sty-ap$yN`Js`
zqZ~Q3e?A5Sz(qBJTouunyfO4pgKK@q{}l*njS!{wiYUues8Dbc&6!FG$s|i+N5Pde
zQeI<kv+CYfMRFL~%{od6hKYm#g3rYmYYjd@41su}7SI(`Dsz{}8Z&nZio7?NZ0X_a
z)P4JvyvAinRScT<+MwNtk}0@BgZ42Rl$&`QP(pz*gJH(Oc7rLtT#^EEBRVG?%n*ht
zgr_y+?G!+y#?T}M>`>TWLS?I*{@_oEiL_)B|1ayOunQTEiMzRT3Bxgte7(E8w~i2m
z%rGzc{k4B<1|8r(G)Bshm3jlJ0h4XCjky=RkYIPkvjoI-J@)JxVS18wEl5&YgR;_n
z8ZiG#X-r4elh6icBtJ?MI4-j5^y=TptafW_+TKISOp85ksbK<ozQ=W3RiYrND{#oB
zw9i2qkkFTNbBtS-^PYH^ftj_Kzq&{3pvV|t8yyFNQUt|0&^FC$AjuI>=mg?zHgdCq
z(nE0EiRZ%5jH02s8yVd?l*)3rEDUqfjV;J_so`jfIl(da5889>Wt=%7xYQNU4O}zh
z#J$Je>)3~e@>Q>($|aEw-%PZFKwsdv73Z`ZC(*ARtu$sWW>w#F6ChTHgUwGTjRi-K
z78$w=Oc{4H0)TDOs?aUif*y9#qAuE=k}wqG#mC3PES4ZisQDnoDFUSZBO9+$CA0H1
zPEiV^+v<4-r&l+b8O8oH69O&1F;*@8rU<D8)KhBwYB^a@k5yiHX8$ZlY7;TM%wHsm
zuDmDw(mi@k!LS4U+7Yny#~}#jWHc>BC-&%8F0~N=&CJmNH&a5?B=gqfQBA_IO`Md_
zNzc$?0hT~w|KMh|O)Uy&C3C<T!|SE&?G`iVA9K~s_*-j;sBA%@tEo!X&J)QPlkPN6
z0xb+xWJ=(yp6wPqk+JEH@=j7z;uPCuu4+E9s#RLAD$eYV7`Ba_WU^hQ=+-~s2!S;!
zA?)NBa*4P&>Xw6=FRe*jB*y7x7^kF)`jr(Y3JTC!&4_Fqg9nMdt%yu?No1r2^f2Kq
zXNdscro6yet!9ckB_yXIzzo^m&w;{Z?^)nMtP%t!!2;?EjU~TYkGSESA@9}ZNrb=+
z^}C{aW>lI=(JdmIljzroNY%(;kj%tob}0bIqP4*8CW{6^?74tRdHHka%#l7N6_Kq*
z8UaY9s@+`xFGs>l)JWlhRp|sjw<pn@x{-!s4CF8szeQ?kluTQ?nr;VFRq9c}fhp)C
z|Ergc{l$7q)3oMd<>~3`Bo76id<jSTltfQrIufV(aPp^-5LFFR0kpnUYrjwxLz|=w
z3vCkftb7waYEL~vNlmQhAL)^44p7@|DG^kOu*Av}H4U}TCg}`AsqoYGafUh(V$exZ
zS*j$~J3x=vTCP!niiZKHWsewoT2j)@X0U)zvjz*G=Q|F$!|XVIjCG)$U`~_I!^p+F
zQtUNc80e@R35sCY25Q7aNr{+l6)`oY#pYv*>5(Z+XmI+KP}h<?ka@-dd|m)rx61l~
z*E_AZ&z1Rso_C?=J{VXa5MANZRhCJ4CV8j4B<}GmlV6iWV1hUO?u}_>YaXN7Q0DkJ
z48dr+J`@cO(mX@4bA*aWk|`fk?F>;#i=ocf<tZ%?m6;bojY1oy%t3SACZa;}@{AFc
zWd5bt$D|`j8MbUUVSr#A5M-Ti;K}B3A#x}P&)QJ4M2#{TuYV58DJoSer8J;ICd*=%
z(*{`Z7;`!x`3#M@jlO{CUvjQ@LSgTDi~0X)uLU)7##AXXClxM({G|O`davXt6r69S
zt`5bsG8z}Kn>DY}vYH5L({o{b#<$~fVx*)d)kc}BS5nlHk<yUfG%(mUoZHXL$dCqx
zlQ<cON5kkjBK|WAY;J;4-?jJOHJqJ3o8{)Xf1q9gDrFyJ;FwSDmsWOFn}oA%<g`@r
zs8C5^kbntn#4e$q4AUWoiqwJ{<L^*~hICUrD&Y0BlK&8`!fZv<&B_K8tumv{5i1*H
z01IW2cp7lp_FQ3sDW1$6h;vkMn1P%*B`4^Za9ILnqgQ_F!P<zr|7fx-{Dgm@k-sLF
zgGbg`0T#l9cFD1kHh7}ZHWu5B>VZ{_=7=vj#!M6wXJbg-n-B|j9grM?vZf25PFSl|
z!QgNUvLFBr1Y)pMUYNMgj!GP<$~+%2Igi<E8RcoUBVs-3mh3{+ExQF>&UTX1lI&Az
z1Zpa+V82r^SD{VYT4@P}MSfxH7+OKie9Jxp$Si>NQXeP;EKc_-ukg+!M?~>cH+cz0
z#pny}K)l4bQ>{329hVkHz$KDdp#K9$1Kc2Ozu~ulq&=R8qpdIr`+1($Cy8k*aVM3b
z;DURO<kTfbc?L14(GrPiks=7gVVHp@0SwOR;`t!}RC;2b0SzYD3)qMXLQSH^sFx#*
zA*?de@;|QCo=8+KFw)6$tF-WL2@F-Ub8rLtIg(zM_(z=rCQq26IBC!Yzh&nQkwXM6
z!%P^5u0e95TsZF5m6USjgA^8{$a%dLjeg|<veN1PRws~+udE>wJyFnr22O2GSzx1d
zImX9==oS;GQH=0bmYBq#7~tU8h^k;lCH`4t9BG|8BPL68x>D89uN`^M>k)3+$17<P
zQZopUsTlxfgHgq!5+j?^Gb9h0IAmptuPsg*Oa=v>!P9YNJWxi3P%fG!vn`h+pfMdK
zq<l2$Gv}s&Z`qIFA%Th|2j&5Qg4hoLqr~TwlST3Q*#y~$|0o$q)S%R<1+z@pCn;Fz
zo;SH~m6_yCgEK2RL5}-g@tHM--cFR8p(a+vs#CSF|4!?S6HuqpRO|-D7h5wj`tnE&
zJ2)w2vs$`9+%9&@YEm#*OPNst?Q98QGl-FvjNJMEO1A`R!Q7aFZM$BcGBdbchA{^^
zMGI%a$Rh}(-gtkTQhzfc9;1G-ari;NhP`Dmc3EdR*i{ocNEHBH5f@5|7%n%3|Az3P
zI;^7FROXoz(ya41ATNK7FQL0#<0yun=$#0{>YhQNsVJ8oFDFOy1Vqgyw{N2eD4DX!
z+=;YSe%<o#MBRp}RnQM}*~PvhGYy&rZ`z7wGY34j_Qn(VKnjfJ%8GRe&|uw2nMzeE
zs}YfPm+NJv78n+~yu;*R7++i3EKYmppg+)_Qj{ldQRJj=7Bbb;ykV>jW$e@~)P(X7
zqha>Jdrr6|JJ29_F<GV>;wpLpwo75DRg?u~5|CucN&hsKS{RrXvXa>!MpnsB<7AS=
z$@~^=7jW!A8**8NTRau~+&Od!DgTK97VwNhvWNdXs-~jyf#~W7&?+Mp<EUKEs9@cK
zQ7Aid_M0q{)5<L19j?$u4msvX$o@R1&=D0%>der_xMRPSqB2=8lZtdyN-5BiG_T(i
zij}f@na!TEjWv76WgE&|O~~kSM56Rl6W$YHhz^<J1}1mS%dX92QU?<RvHPZN5CJ8M
zfF?)RPDU+0sycUa+p)T;g^4oWPXQ^1CmD8u<sF=BC&NbDb_c2GIO~z2pz4x8xv2D%
zpi#(1G)g371tFqESEU}D(A`2umXHiR9AM3{^;pt`3Z$1(ub^c5MJ6?H=AX^5^Z&(5
zz!fX?D5@?vdm5ZD!~>THpa34PlP?7aUe2vwi|P=ZR)(X0P;DueiIr!j+D?qPb>OeD
zOauqeB4fm5S~E<z4vWDMeVkQeo%v^zFS5yKgv@TU3y-d;L;iS~kn`FA!C{cZ+Bi+K
zG2#NiIg!<<5fq4-L-YTt0s*R9wHrWCMuGaZ6Y+Q`9@GnW4&xcvNLAxlOCAQM#!aeL
z5cmBSM}p~*wkjTE(VXJ35W!+OhUy))Lvlhb5W10%-(U+EKvd%wi`ipV`jqjEiI9oP
z6_N|8Hg5(A*zPUB4jDSdKAB-bPTiu>LI#S;C>^7yTonfxKr5wav}LTX4CEY(3{_pj
zM>wPtO-s_NBo);%r-Drr{-pi2lX|40Sfk02hT|Cy|1$vY5Q*dD9d%}eOAwDT<Dx8A
znPyX*7I0V>^9a~T#^7p^po|&1R8~-4hH==qWEW9dR-p295=dX?RkNTy8G@*q$AKQ>
z;jqHW^kh1eG7Q|v6VA<OnlYMrcWfom66lKBn}AxfhdbtE4h&svpK0t&90*-Uhi<kL
zbS1!T2|p)BMx|n@3m(Tx4_nnY0Ye|{Bl!%UWb2A#1|*VgUvRd)Ef^k#AVctAfN@C!
zF={~&lSIuy>=Ac-77$`ZEt_(5+8ECIRb_-w#6`(Lttjze^3skx)b^?ix0qda#&<;G
z*FJn&k9I~BBEld6{*QtWfjqXBKpr$Higf&yygEOI#HAxfllwIz)=Yd)>!Cw$k&{fy
zxR9j6lz-H*iz*2@T=?&gpG9#23P4e(;m$8vbhLzBmC{&=f@@}!%$5OQ#uZpsOEW@a
zVo%b6yVe7*SA6O}F&sgKeX1R$pfSEf94$==oP{k5{9vd_YP+Q#a5{SF!FG0l@8I{v
zhH7aiMvs7&MHXb;qR-cnkEG5^qbay;y|zwkO^3Yw3Nzbt8|iRBx50Gavdg<=fD?g>
zR2x}u=1@N|s@N!gmyG-xaBz>EM`nFwokkpFA3JBH;FN`pRm=~8N)ads^Z3>u3WAL;
zTx*gfcgUSQV%K!ppuql*Ou2DxNSADwi|6j#eNhyl(@i)v{>H?H^@)4HVxyu&4p!9C
zZp)#_VY24=&ExwWids$qB~FG~&$x#_;nC;9Pa97Qf9n7u4j~AWC^pk?JgsyPV<pFB
z19}qpntsjY@!Fbx7PNu&o|wXZ7OCRzKcGkdHEnou#O@2xZEyhi>+FmihPKPx++1{q
zIr=^bH2ADqL<3asWCbl2LXH`{hVmN^YEGb5lNewa1N~?KO4S^gIt{1)v<GESjR{Wi
z^uQMSE+EvZNCb2M27?vAwIH1}gu5@`yt)s3-9zf)LO7ESl?a$bqD?N!tv`VJPwsU4
zy1J+>2<0v8=aI~4Xlt5192?xoBs(btDmn0itTI<tP-cJw&<$_a*RuZD+kqWbn&q<^
zc>?FJm|3YdjueItON?Gj8B!oe#wB^L!)^|~gs3(Q_WlftC2`8E;g}3_!lr#OYJ^A%
zl3H4N9I5gsj{8sm8Tv<5P@Cl4;u!(Qya(8LYIVSi7EPvDSsbs^uIWCuvzn4Lk#*J4
zyN&_8(xgFE&Xc1huyc`OlA~tEHD|+}g_OJ&_T6jSG2#((tLoyzc^V-iQ*vqqJ+NMu
zPvg`m@o7>-A&Ahbb<wHh4Zp`hYe(8X%fsU(=HkvZT&>dD#5@{H(9`>0ngcL(Cc3Ny
zJWf{zlMO%ZCx<kEa=rr#Gk}tA2HCtItU<MAPbTs;4|{=A|58xcg<?YKnd6fZ{_;sp
znn>0agWu#at&(EW70QW8%CV|Ko-#qwu>sC1U{M3?RKP>35<AFM^||tprUeRH*lbhB
za*E3)&Uc)m2kQNhdB~;zi50!TZYWlIpio`9A93yy?Gt7Wz!y2%5;{6suMIz=`DZvK
zq%3629VYiUPWfimA|UhZFvccG6jD^ymf1m|d6rh1#SDy_@yPVcEqoE&i-`>lfR$Px
zIsGxJFEUwXr{04|W>xL>iYwa(c@|Y`w=d@SF+IxJ3f8DwrB?9Rr0nbzvK7vlA}OH_
zbgBp<z4ED8P>qA}gJqbk2er6Ohx!^C*#EeJ%j#cKe@dn$;bb7YSS2%t8RX;*3NeD0
zzzQGa1jS7lQG=k3P0f06fH+uA8)FUrRaLMCj$1Va#^=aTCi|Rwf5>LrU&d|@0B-b_
zKJ}VuUk7b#(UG8w815Sik|X<s2eAhha+hi|H+m?ZyHk!%N%FpiCDk!l+PI>vqYO{k
zzh|O%eONjhU~Fb`%^*9ZL*&I>YUOaFGwmF%Lvf9ZY2jtA^^}$?)#P@X!@o!kfCVD#
z#k3i*ZJLjjK@Eza2d~s9(^rK$tZfZ{3cm6uAVv1ZVksR5i*hA}slc=Vy?`FHP~A^Z
ztj6gCTuc^-11=&-t;rr!_<%5qoR)zN4jberZD4u@8|(HA)K~w=I06L=EjZ|8*dS{}
zGY*l%^GSGcS9S-5N8vXBFg%W<k1BS_2^&%ZkG>cy2dD-}F_MJ|c?P+(K0;;vnFqF>
z;t~Ih6X5=}M-&81+Y`7Ym2Z&{S^@$?LFuy@w@EbAQc+2*NTx*|^1+q&kj(}5yCZ9?
z@AHDv^nw_j%`4M%n1eDe+i_ZJ$UilKXSO7BoR*@Zyl=$;D(Ym-pKGas<wwj)8dM~E
zkPjGu_0?0-xKdN?lz^$uF>A=@l(^5VBv~VX13shhA(*W2<gx2D@=v@GPnm&!+PNq>
z!N@2awqu4Uuy59?_UdRuKKX(BQ7iwcshSnh^Wd8vExf@l@)B=Jt3xE9FAePg6^w!s
z7)Z>|$2Bg*M7MAxf&q*vwKddUMe~RP227jH$|A}CfFd+uJkI4Di<z|OFPMe}MC%+H
zR{g6d%b27opTH-ybFUJ?>VA|#4W2ArzgC)awaP^`6V?LBs*alVvuTUK9~_Uh{y~IX
z);@Gp8>9JCDV%5et^>_yJ=qXE*;tT01vB-@c06NF*yOUw3%y!D7F_3lwt!M=K9(aa
zMe%SiItw6IsqYYe&*YK)9J=v_#H_kzCKgeg8u;!A!Oe3?RLS%U*cU#Q2A}eLNc-kA
zs~b#Ny!(Rt3yzZv2~Svr$0PHtc-7i@EHFSd25qRn3=z*`p*Uq9?2tQ=<U^;!_TD4y
z;3qB}F3?$JXbLi~LCE2p!+^FgMQ;Q%a<;n?wPwo!sAhh+Z{H#FY@tY}xpPZ1%1e1}
z0Fobu*q5-<D$Kzn$-?PF%I<4{XcVNH!W^WyC-x(C9mL#+wd3r)Mk~_(1r$yi{?$q1
zbHQLK6}eceXHr4_N-il^wy~O)c7s>Mu_)36nEm@hX5ml{={}vb|L;jrfZ|}z%)?>r
zq$OWkB{jh#-cLqe{}_mkwMS}8talCt(nyjkCstERv`m?{RZL5xsV|A5XiE$!gdYM!
zV^hj7Ws1g&!nvCQG@N82e>Eh#!QAq2X-5p;UWbH?=bJYRzIzknBQd;CDyhuqjeVxz
z#ac8esp>P*_;W|We#>P;z=--F%OgCCM<ER+4<x7s4;Ntn83|+GwY=;CAXPw_oMt_f
z$@t1~g{Bk=U7H(z6r?`f-3mTD496m;a89?O!v$O;p`wuzAU4+w!7#Pba&Xe9CN({`
zcQDx$%t!1GjtBFES_e@brSwUQqVY%!1SR%WVBOM!!2H9M=w+S<_{6R|(MBrhpstj8
zDsmbiG$jkdaPSA^tV@DR3x;((gS9GnQCzl}Q-cUl+DVn>7Zv22&1?J11;>mC(zTKx
z5c%uPA$%e$Vrcm=s)Ba>ZnIJ|dCHa_X4%JfimgW#k)1%)=Yjq`am*jWAHLq;<)OgK
zA!nH_#WY13G6X)_3f$=s<)kYa9r~+L7~dg?nPil`NCq(*EK=TEYOR8427xFI-Db);
zOu9m;R*PX33P$#mod@;DIDj7y@&W8rum*Oh+%Pl9&YinE*dVF_SeQxsi!t+B5HV7}
zJDy>~yk;8A>QK>4a1P%E(`P-3(8+#Mxz*}<-O}cBYz*A7ZXTm!SP&o%=va#fP=F6D
z6QbNiFL)9u$rRXR61l{^f}fb$&FqKyt<{E0Sq1OpT8;B?)}55eYrys9>~7WxI#vUx
zW|+%D_Uub({g&Rp<0;bSTQ!x&0{9<-iscAStngYv1gy3dQqzL#dFb}ezz>?17Og5M
z=$0b~d41sPgTN%Gx_@YOe`|QzpLIHiz8hBGx_9~0dH^fo<0xMT5ro4Cu2UrBh$gw!
zZBl?>JRluvTdY9nY9&JL8z)~`TC>6Mv4Y2+O27P=`?8X;#5v4U>AQrEb~uF_=WXNi
z^YEbJ<%Ni97z-;<h2k(t&=|9k1z+2Nlbyvi*%dq6<gbc%+^}Z(U)<Qp@|mcb@D4Dr
z2gAO3IP4p?z3xg&lkw$&_bs)5CPcFTU@lhjYs^+_u!IaXYO?^+#7D@j`@sv`w@BRF
zu3ZijkQK5CM7nd?p(a<h;YWJ(@mSx(ur`Th?6g5sLqhS?gefsGNj7Tc&;z15dzOuT
zzm}XGcfGjh#Ot|19YThLg%YH01l+0N09lbK8&abgbH6n7_K{3~Tt93Zn7tKA-bWsW
zfD15~tdd9X@<=7lVnd*91!xB1Tjvir32f=Mm-t0%0zjTje1WFKk#sQd;#wWQ2*M<+
zY>})sc_vLSU24)OE4(XopjX)WHDS{hE^M6Ys-22<2|+}*SaFt-lrxHhwQsZKJwg*y
zpfC$|w4rL?Z=dI8v+FXfq*g!(OvCnZWb(X&3frQC;*R^e!5)NG4~(rIh+|LY@koe|
zw+&CuJw-;*gcL#$i)FTIRkdnBp_^3atj3AVx9I{4xrF=F7lH+YHPv=0K^SmX&?=Lx
z7`$@-v&!YBpij%SG3Uzv<X{*mCd{mIH5K_Tq<DYQLsphPP@Dw=9jVT?%Z6lSEi?&Z
zo8`_z;?dGR+?MU<tP^xwkkI0kES8<F;WpoD)w)68Ufo~Z6VmV*17{THB&YTscJ3w~
zqq}2bO0VN++9=)Im)R0RCW%jEMIBM4-dI)a^M)m-lypI*9mTdd@Kho<6to*zF^~23
z`u#WR(s_`f@=Zys`j5mNIJ|u05l#?0ozPeY>E#_f`0Fx|FE)0wZbX&J5y5k4J6Fj_
zL|5$U0uA_1EoY*iug_Eb$mvYJ#`td@N%-czU8nnRJc0?ioFvVbYGe&DA#~GL(gkCz
z`@je+)9Eg1BLN#mX<KmDSO<c4+gBS@NT(gwrC}UD7+Nt1Up#Jq2~L>9$g>qt)7fWU
zO5JPvk@@wgSBJs=xU0Y+EP%C{q*V<Iu)Gu6vOl+tzRmaAUuOw_z<`E4&NA73!PgpJ
zTCyL<b2h>UJtldvm@;#MJj&a2*8bavCc_`&<SF`iU1>?D)UU$;akYgaW3?_~2sKoB
zJilqES`1ekSd4uI=eic0`$KfYAEcBwcQ1xq*&Q)B*~zqhq)!w-d!IzR{7TM1X)7gq
z_Lre$pV#NE*Hwjs5zY7xV4TJH{e|~t6dpbLq(q#*|JXi=9HnT;@*<0bN-eeo%oZ$_
zHsGm_-2om~vAf7d!CbszPYFwOc_@6Nq>Ft;z!~AyOJeJn@KnN(OK&a3X$}Iqzl!8E
zT5Ec_%=*M^Ye~|f<O>{5N}hFqltoc9u+`SMt<wr`n0Inr{K=Ek(=g5id1xFYY2jzg
z{(3bZ^MG**8QwaNYj(ka_;#VQde;KnL&Bl^cEM0U8wriAvvj_FWxk9I8;6!#In@%Y
zr@LQ%fZR;<t$U`&pL2&W{*!VuWFaJ%wiv&0-+*oKsyv#AXBgGwj!(q=5bV#VmL+Xp
zu$YDa!%@j@PT4@Tl~K`4Iqj+-;Yax0Y5^msj1uT>ic4q$ob{P=pam=#)Ctyd1jN{J
zt-5dDdtqedT`5&}@o)(}4ajyfqxt|lL`^XPGN4VZc8qc)v-v0#*SUOkuAH&s();0#
zudLz`EDCxj)P&p=cYN%)2{rEP3O`7~7rEMG;jgogV^%r;`hl<Ot^Dg)-%#Gh2T9(!
z4@Kdx<C-e~m+>1{Jgxry0sof4zxCkXd*S~fdr<#KWy+;#Q~Te3R}ij<kx!1;{_|&l
G^M3$pODu)}

literal 0
HcmV?d00001

diff --git a/ray-tracer-cli/src/main.rs b/ray-tracer-cli/src/main.rs
index 45f7b37..29242d9 100644
--- a/ray-tracer-cli/src/main.rs
+++ b/ray-tracer-cli/src/main.rs
@@ -16,6 +16,7 @@ use crate::scenes::dragon_scene::DragonScene;
 use crate::scenes::group_scene::GroupScene;
 use crate::scenes::patterns_scene::PatternsScene;
 use crate::scenes::refraction_sphere_scene::RefractionSphereScene;
+use crate::scenes::smooth_teapot_scene::SmoothTeaPotScene;
 use crate::scenes::stripe_pattern_scene::StripePatternScene;
 use crate::scenes::teapot_scene::TeaPotScene;
 
@@ -28,7 +29,7 @@ fn main() {
     }
 
     println!("Start...");
-    render(&TeaPotScene{},400, 400, "./img/teapot.png");
+    render(&SmoothTeaPotScene{},400, 400, "./img/teapot_smooth.png");
     println!("Done.")
 }
 
@@ -45,6 +46,7 @@ fn render_all() {
     render(&RefractionSphereScene{},400, 400, "./img/refraction_sphere_scene.png");
     render(&TeaPotScene{},400, 400, "./img/teapot.png");
     render(&DragonScene { }, 800, 600, "./img/dragon.png");
+    render(&SmoothTeaPotScene{},400, 400, "./img/teapot_smooth.png");
 }
 
 fn render(scene : &dyn Scene, h_size : usize, v_size : usize, file_path: &str) {
diff --git a/ray-tracer-cli/src/scenes/mod.rs b/ray-tracer-cli/src/scenes/mod.rs
index af25f4a..f59c3c2 100644
--- a/ray-tracer-cli/src/scenes/mod.rs
+++ b/ray-tracer-cli/src/scenes/mod.rs
@@ -10,3 +10,4 @@ pub mod stripe_pattern_scene;
 pub mod clover_triangles_scene;
 pub mod teapot_scene;
 pub mod dragon_scene;
+pub mod smooth_teapot_scene;
diff --git a/ray-tracer-cli/src/scenes/smooth_teapot_scene.rs b/ray-tracer-cli/src/scenes/smooth_teapot_scene.rs
new file mode 100644
index 0000000..6f8d4a6
--- /dev/null
+++ b/ray-tracer-cli/src/scenes/smooth_teapot_scene.rs
@@ -0,0 +1,43 @@
+use std::env;
+use std::fs::File;
+use ray_tracer_lib::camera::Camera;
+use ray_tracer_lib::colors::Color;
+use ray_tracer_lib::core::math::PI;
+use ray_tracer_lib::core::transform::{rotation_x, rotation_y, rotation_z, view_transform};
+use ray_tracer_lib::core::tuple::{point, vector};
+use ray_tracer_lib::lights::point_light::PointLight;
+use ray_tracer_lib::obj_reader::ObjReader;
+use ray_tracer_lib::object::Object;
+use ray_tracer_lib::world::World;
+use crate::scene::Scene;
+
+pub struct SmoothTeaPotScene {}
+
+impl Scene for SmoothTeaPotScene {
+    fn get_world(&self) -> World {
+        println!("{}", env::current_dir().unwrap().display());
+        let file_path = r"./obj/teapot.obj";
+        let file = File::open(file_path).unwrap();
+
+        let mut obj_reader = ObjReader::new(file);
+        obj_reader.read();
+
+        let teapot = obj_reader.smooth_models;
+        let teapot_model= teapot.get("Teapot001").unwrap();
+        let mut obj_teapot = Object::new_smooth_triangle(teapot_model.clone());
+        obj_teapot.set_transformation(&rotation_y(-PI/4.0) * &(&rotation_x(-PI/2.0)*&rotation_z(PI/2.0)));
+        let mut world = World::new();
+        world.objects.push(obj_teapot);
+        let lights = vec!(PointLight::new(point(-100.0, 100.0, -100.0), Color::new(1.0, 1.0, 1.0)));
+        world.set_lights(lights);
+        world
+    }
+
+    fn get_camera(&self, h_size: usize, v_size: usize) -> Camera {
+        let mut camera = Camera::new(h_size, v_size, PI / 3.0);
+        camera.set_transform(view_transform(point(-15.0, 15.0, -30.0),
+                                            point(0.0, 1.0, 0.0),
+                                            vector(0.0, 1.0, 0.0)));
+        camera
+    }
+}
\ No newline at end of file
diff --git a/ray-tracer-lib/src/obj_reader.rs b/ray-tracer-lib/src/obj_reader.rs
index f82ca90..ff4923e 100644
--- a/ray-tracer-lib/src/obj_reader.rs
+++ b/ray-tracer-lib/src/obj_reader.rs
@@ -1,19 +1,28 @@
 use std::collections::HashMap;
 use std::io::{BufRead, BufReader};
 use crate::core::math::Float;
-use crate::core::tuple::{point, Tuple};
+use crate::core::tuple::{point, Tuple, vector};
+use crate::shapes::smooth_triangle::SmoothTriangle;
+use crate::shapes::smooth_triangle_model::SmoothTriangleModel;
 use crate::shapes::triangle::Triangle;
 use crate::shapes::triangle_model::TriangleModel;
 
 pub struct ObjReader<T> {
     pub source : T,
     pub vertices : Vec<Tuple>,
+    pub normals : Vec<Tuple>,
     pub triangles : Vec<Triangle>,
+    pub smooth_triangles : Vec<SmoothTriangle>,
     pub models: HashMap<String, TriangleModel>,
+    pub smooth_models: HashMap<String, SmoothTriangleModel>,
 }
 
 impl<T> ObjReader<T> where T: std::io::Read {
-    pub fn new(source : T) -> Self  { Self{source, vertices: vec![], triangles: vec![], models: HashMap::new() } }
+    pub fn new(source : T) -> Self  {
+        Self{source, vertices: vec![], normals: vec![],
+            triangles: vec![], smooth_triangles: vec![],
+            models: HashMap::new(), smooth_models: HashMap::new(),
+        } }
 
     pub fn read(&mut self) {
         let reader = BufReader::new(&mut self.source);
@@ -30,6 +39,13 @@ impl<T> ObjReader<T> where T: std::io::Read {
                         let z = items[3].parse::<Float>().unwrap();
                         self.vertices.push(point(x, y, z));
                     }
+                    if line.starts_with("vn ") {
+                        let items : Vec<&str> = line.split(' ').collect();
+                        let x = items[1].parse::<Float>().unwrap();
+                        let y = items[2].parse::<Float>().unwrap();
+                        let z = items[3].parse::<Float>().unwrap();
+                        self.normals.push(vector(x, y, z));
+                    }
                     if line.starts_with("f ") {
                         let items: Vec<&str> = line.split(' ').filter(|item| ! item.is_empty()).collect();
                         for i in 1..items.len()-2 {
@@ -42,24 +58,46 @@ impl<T> ObjReader<T> where T: std::io::Read {
                             let v1 = &self.vertices[i1];
                             let v2 = &self.vertices[i2];
                             let v3 = &self.vertices[i3];
-                            let triangle = Triangle::new(*v1, *v2, *v3);
-                            self.triangles.push(triangle);
+                            if s1.len() == 3 {
+                                let i_n1 = s1[2].parse::<usize>().unwrap() - 1;
+                                let i_n2 = s2[2].parse::<usize>().unwrap() - 1;
+                                let i_n3 = s3[2].parse::<usize>().unwrap() - 1;
+                                let n1 = self.normals[i_n1];
+                                let n2 = self.normals[i_n2];
+                                let n3 = self.normals[i_n3];
+                                let smooth_triangle = SmoothTriangle::new(*v1, *v2, *v3, n1, n2, n3);
+                                self.smooth_triangles.push(smooth_triangle);
+                            } else {
+                                let triangle = Triangle::new(*v1, *v2, *v3);
+                                self.triangles.push(triangle);
+                            }
                         }
                     }
                     if line.starts_with("g ") {
                         let items: Vec<&str> = line.split(' ').collect();
                         let name = String::from(items[1]);
-                        let triangle_model = TriangleModel::new(self.triangles.clone());
-                        self.models.insert(current_name.to_string(), triangle_model);
-
+                        if self.triangles.len() > 0 {
+                            let triangle_model = TriangleModel::new(self.triangles.clone());
+                            self.models.insert(current_name.to_string(), triangle_model);
+                            self.triangles = vec![];
+                        } else {
+                            let smooth_triangle_model = SmoothTriangleModel::new(self.smooth_triangles.clone());
+                            self.smooth_models.insert(current_name.to_string(), smooth_triangle_model);
+                            self.smooth_triangles = vec![];
+                        }
                         current_name = name;
-                        self.triangles = vec![];
                     }
                 }
             }
         }
-        let triangle_model = TriangleModel::new(self.triangles.clone());
-        self.models.insert(current_name.to_string(), triangle_model);
-        self.triangles = vec![];
+        if self.triangles.len() > 0 {
+            let triangle_model = TriangleModel::new(self.triangles.clone());
+            self.models.insert(current_name.to_string(), triangle_model);
+            self.triangles = vec![];
+        } else {
+            let smooth_triangle_model = SmoothTriangleModel::new(self.smooth_triangles.clone());
+            self.smooth_models.insert(current_name.to_string(), smooth_triangle_model);
+            self.smooth_triangles = vec![];
+        }
     }
 }
\ No newline at end of file
diff --git a/ray-tracer-lib/src/shapes/smooth_triangle.rs b/ray-tracer-lib/src/shapes/smooth_triangle.rs
index 6359a1f..7bf04ff 100644
--- a/ray-tracer-lib/src/shapes/smooth_triangle.rs
+++ b/ray-tracer-lib/src/shapes/smooth_triangle.rs
@@ -23,10 +23,6 @@ impl SmoothTriangle {
         let b=  self.n3 * intersection.v;
         let c = self.n1 * (1.0 - intersection.u - intersection.v);
         let n = a+b+c;
-        print!("{} {} {}", a.x, a.y, a.z);
-        print!("{} {} {}", b.x, b.y, b.z);
-        print!("{} {} {}", c.x, c.y, c.z);
-        print!("{} {} {}", n.x, n.y, n.z);
         n.normalize()
     }
 
diff --git a/ray-tracer-lib/src/tests/obj_reader_tests.rs b/ray-tracer-lib/src/tests/obj_reader_tests.rs
index c404a97..668b067 100644
--- a/ray-tracer-lib/src/tests/obj_reader_tests.rs
+++ b/ray-tracer-lib/src/tests/obj_reader_tests.rs
@@ -1,6 +1,6 @@
 #[cfg(test)]
 mod tests {
-    use crate::core::tuple::point;
+    use crate::core::tuple::{point, vector};
     use crate::obj_reader::ObjReader;
 
     #[test]
@@ -113,4 +113,49 @@ f 1 3 4
         assert_eq!(t2.p2, obj_reader.vertices[2]);
         assert_eq!(t2.p3, obj_reader.vertices[3]);
     }
+
+    #[test]
+    fn vertex_normal_records_test() {
+        let str = "
+vn 0 0 1
+vn 0.707 0 -0.707
+vn 1 2 3
+";
+        let mut obj_reader = ObjReader::new(str.as_bytes());
+        obj_reader.read();
+        assert_eq!(obj_reader.normals[0], vector(0.0, 0.0, 1.0));
+        assert_eq!(obj_reader.normals[1], vector(0.707, 0.0, -0.707));
+        assert_eq!(obj_reader.normals[2], vector(1.0, 2.0, 3.0));
+    }
+
+    #[test]
+    fn faces_with_normals_test() {
+        let str = "
+v 0 1 0
+v -1 0 0
+v 1 0 0
+vn -1 0 0
+vn 1 0 0
+vn 0 1 0
+f 1//3 2//1 3//2
+f 1/0/3 2/102/1 3/14/2
+";
+
+        let mut obj_reader = ObjReader::new(str.as_bytes());
+        obj_reader.read();
+        let t1 = &obj_reader.smooth_triangles[0];
+        assert_eq!(t1.triangle.p1, point(0.0, 1.0, 0.0));
+        assert_eq!(t1.triangle.p2, point(-1.0, 0.0, 0.0));
+        assert_eq!(t1.triangle.p3, point(1.0, 0.0, 0.0));
+        assert_eq!(t1.n1, vector(0.0, 1.0, 0.0));
+        assert_eq!(t1.n2, vector(-1.0, 0.0, 0.0));
+        assert_eq!(t1.n3, vector(1.0, 0.0, 0.0));
+        let t2 = &obj_reader.smooth_triangles[1];
+        assert_eq!(t2.triangle.p1, point(0.0, 1.0, 0.0));
+        assert_eq!(t2.triangle.p2, point(-1.0, 0.0, 0.0));
+        assert_eq!(t2.triangle.p3, point(1.0, 0.0, 0.0));
+        assert_eq!(t2.n1, vector(0.0, 1.0, 0.0));
+        assert_eq!(t2.n2, vector(-1.0, 0.0, 0.0));
+        assert_eq!(t2.n3, vector(1.0, 0.0, 0.0));
+    }
 }
\ No newline at end of file