LIGHTING AND RENDERING BY VRAYBi tutorial ny hng dn nhng bc c bn
trong chiu sng ni tht bng Vray. C th bn ngh rng 1 setting v 1 cch t
nh sng c th s dng lun m khng cn thay i, nhng ti cha bao gi dng li 1
cch lm, v y cng ch l mt cch lm c bn. Hi vng cc bn c th bit c nhiu
phng php tt hn. Scene ny l c KT_Max s dng trong bi v chiu sng ni
tht trong scanline, ti s dng lun bn c so snh u v nhc im ca tng loi.
Trong bi ti dng Max 7 v Vray 1.47.03. bt u, chuyn t scanline sang
Vray.
Ta cn test nh sng trc khi gn vt liu, bc ny rt quan trng v s tit
kim c thi gian cho bn. To vt liu Vray mu xm RGB =210,210,210, ri gn
cho tt c cc i tng, render th. Nhn khng khc g scanline.
Tip n, ta to 2 Vraylight ca s, m phng nh sng mi trng chiu sng
qua ca s. Setting chng ging nhau. Bn cng c th ch to 1 light cho ton
b ca, nhng ti lm th ny v c th s lm nh p hn, nhng ng ngha vi vic tng
rendertime.
Render th
Qu ti. Bc tip theo ta s bt GI ln, bc ny Vray s tnh ton s phn x
nh sng ca cc ngun sng c s dng. Vray lun c nh gi l motor c tnh GI
render nhanh nht. Bc ny bn nn chn setting nh cho nhanh.
Cng tm n ri. By gi ta to nh sng mt tri chiu qua ca s bng 1
Directlight ri render li.
Mi th nhn cng c mc d vn cn li. Bc tip theo, gn vt liu cho scene.
Render li
Ti hn so vi nh m ta ch render vi vt liu mu trng. iu l v mu trng
l mu nhn v pht ra nh sng mnh hn, do lm nh sng ln. By gi bn c th c
nhiu la chn: _ Chnh li cng light. _ Tng h s Dark mutil v Bright
mutil trong bng "G-buffer/Color mapping", ri render li cho n khi ng
. _ Dng Photoshop sa li (cch ny rt hay mt cng render li). _ Cch cui
ti mi s dng, thc t trong cc bi tt rt t nhc n n v n cng mi xut hin
trong cc phin bn Vray gn y. Nhng ti thy n thc s hu ch. l dng Vray
frame buffer sa li. Trc ht kch hot, bn chn theo hnh di, khi lc
render nh s c hin trong bng Vray frame buffer.
Render, by gi ta s sa nhng ch b ti. Bn bm vo , ri chnh li sao
cho ng vi thc t nht, y ch l cm nhn ca bn thi. Trong trng hp ny ti
chnh theo hnh di y.
nh sng kh tt, vi ti th l t yu cu. Finish c ri.
Tng subdiv ca Vraylight ln 20 gim noise. Setting render nh
final:
Ti render cho kh 1200x900, ht 16 pht trn my Pen IV 3G, 1G Ram.
Save sang file .tga Open with Photoshop, hon thin phn mi trng, chnh
li 1 cht nh sng, tng phn cho ng .
nh final
bt u, download scene. y l nhng bc c bn trong render bng Vray. Cc
bn c th thy u im ca Vray l kh d s dng, nhng phi nh i bng thi gian.
Nu bn s dng tt scanline th l u im rt ln ca bn. Chc cc bn thnh
cng.
