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How to save V-ray light cache and irradiance map

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jamesalbert
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How to save V-ray light cache and irradiance map - Page 2 Empty How to save V-ray light cache and irradiance map

Post by Norman Thu Apr 22, 2010 8:51 am

First topic message reminder :

3rd tutorial ko para sa inyo....

para sa lahat ng gustong mapabilis ang final rendering.....one of the SECRET ng vray max. 50 to 80% of rendering time ang pwede mong e-save. i got this tip dun sa mga indonesian friends ko dito....ang laking pasalamat ko kila sakta, joe saka dhedhe kahit hindi sila member dito..wahehe..baka kakilala nyo lang.....

kailangan natin e-save yung computed data information ng vray light cache and irradiance map para magamit natin sa pagrender ng final output. ginagawa natin ito para pag nerender natin yung final hindi na ko-kompyuten ng max yung light cache saka irradiance. dyan kasi minsan tumatagal ang render. and specially yung RAM memory nya na o-optimize ang paggamit since hindi na magko-compute. iwas crash ng PC and 6 hours na rendering sa mga naririnig ko sa ibang member.

subukan ko pong explain lahat sa abot ng aking makakaya kasi medyo komplikado ang procedure. importante makuha nyo muna yung concept para tama nyo magawa.

ito po yung idea ng procedure:

STEP 1: TEST RENDER > SAVE(light cache, irradiance map)
STEP 2: LOAD SAVED(light cache, irradiance map) > FINAL RENDER

ganito po yung procedure

after natin ma-set yung desired lighting, ambiance, environment sa scene natin tapos ready na tayo magpa-final output.

STEP 1: TEST RENDER
set natin yung vray sa pinaka simple settings like, image sampling(anti aliasing)
How to save V-ray light cache and irradiance map - Page 2 LC03
image sampler: FIXED
anti aliasing filter: OFF

tapos sa irradiance map ang light cache
How to save V-ray light cache and irradiance map - Page 2 LC04-1
1. current preset > very low
2. hsph subdivs: 20 or kahit na mga 2 ang value, pati na rin yung interp sample: 20
3 yung light cache value ng subdiv: 20 lang, tpos yung sample size .01

>>>CLICK RENDER<<<
dito sa step na ito di importante yng quality ng rendering since ang kailangan lang natin yung computation ng vray sa mga ilaw.

STEP 2: LOAD SAVED(light cache, irradiance map)
once natapos yung rendering ese-save na natin yung mga light cache and irradiance map.

irradiance map
How to save V-ray light cache and irradiance map - Page 2 LC01
1. click "save to file". the file should be .vrmap
2. change "single frame" to "from file"
3. "browse" the .vrmap you have created


How to save V-ray light cache and irradiance map - Page 2 LC02jpg
samething with light cache
1. click "save to file". the file should be .vrlmap
2. change "single frame" to "from file"
3. "browse" the .vrlmap you have created

after nating magawa yung lahat na ito ready na tayo mag set ng pang final na setting. pwede nyo na e-adjust yung mga value ng lahat ng anti aliasing, irradiance map, light cache values para sa final rendering nyo. wag nyo lang gagalahin ulit yung value ng lighting at iba pang related sa light kasi mawawala yung use ng sinave mong VRMAP at VRLMAP.

NOTE: sa isang angle lang ito applicable. so kung may bago kayong view or angle di na magagamit yung file na ginawa nyo kasi applicable lang sya dun sa angle na yun. try nyong gamitin yung vrmap saka yug vrlmap sa ibang view or camera maiiba ang timpla ng lighting. kasi gagamitin nya yung data ng dating cam/angle dun sa bago mong cam/angle n hindi pareho ng setting ng lighting.

check this discussion -

http://www.cgpinoy.org/cg-discussions-f30/saving-irradiance-map-light-cache-t1112.htm


Last edited by f-fortyone on Fri May 28, 2010 7:40 pm; edited 2 times in total
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Post by Gunther_08 Mon May 03, 2010 11:52 pm

master f-41 thanks for this tips. still exploring max and vray kaya malaking tulong to.

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Post by maq1226 Mon May 03, 2010 11:59 pm

ERICK wrote:
f-fortyone wrote:
maq1226 wrote:kuya ganyan din po ba sa Vray for sketchup? Yung concept?

naku maq, di ako sure..kasi di ako vray SU user.....sana may VRAY SU na sumagot sa tanung mo....

pwede dude... available to sa lahat ng vray plugs

@ norms - ok to dude.. very helpful


Thankyou Sir Erick.
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Post by westcoastwindblow Tue May 04, 2010 2:10 am

ok sana pero parang parehas yung outcome sa draft at final render.,

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Post by Norman Tue May 04, 2010 3:02 am

Gunther_08 wrote:master f-41 thanks for this tips. still exploring max and vray kaya malaking tulong to.

welcome bro.....thumbsup
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Post by lei23 Fri May 21, 2010 5:34 am

gandang tutorial sir..try ko po ito..medyo baguhan pa din ako sa max.. Smile
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Post by Norman Fri May 28, 2010 7:38 pm

westcoastwindblow wrote:ok sana pero parang parehas yung outcome sa draft at final render.,
sir saving irradiance and light cache has nothing to do with the quality of rendering with your draft and final render. it is a pre calculated para sa dalawa. so kung ginamit mo yung procedure na ito then hindi mo naman tanaas yung mga value ng settings mo for final render, im sure shot pareho ng quality yang draft mo saka final render mo but atleast mabilis sya.

lei23 wrote:gandang tutorial sir..try ko po ito..medyo baguhan pa din ako sa max.. Smile

no problem dude!!!

nasagi ko lang meron palang discussion nito since 2008

http://www.cgpinoy.org/cg-discussions-f30/saving-irradiance-map-light-cache-t1112.htm
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Post by reggie0711 Sat Jun 05, 2010 9:53 am

does it wont have a problem if i save IR & LC maps in a very low settings and a very low resolution

then i render final in a very high settings in IR & LC and a high resolution?

iba kase procedure ko... im saving IR & LC maps on a high settings already... but low res
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Post by Norman Sat Jun 05, 2010 10:13 am

reggie0711 wrote:does it wont have a problem if i save IR & LC maps in a very low settings and a very low resolution

then i render final in a very high settings in IR & LC and a high resolution?

iba kase procedure ko... im saving IR & LC maps on a high settings already... but low res

parang baligtad ata ginawa nyo sir reggie. kasi mawawalan din ng sense yung pag save mo ng IR and LC since low res lang naman ang rerender nyo. we are doing this kasi nga to get the pre calculated maps using the low settings then saka nating ea-apply sa high settings di ba? para di na eca-calculate ng vray yung IR and LC maps. so mas magha-half yung rendering time nya sa high res mong render. kung low res lang din naman ang render mo kahit di mo na rin e save yung IR and LC.
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Post by reggie0711 Sat Jun 05, 2010 10:53 am

f-fortyone wrote:
reggie0711 wrote:does it wont have a problem if i save IR & LC maps in a very low settings and a very low resolution

then i render final in a very high settings in IR & LC and a high resolution?

iba kase procedure ko... im saving IR & LC maps on a high settings already... but low res

parang baligtad ata ginawa nyo sir reggie. kasi mawawalan din ng sense yung pag save mo ng IR and LC since low res lang naman ang rerender nyo. we are doing this kasi nga to get the pre calculated maps using the low settings then saka nating ea-apply sa high settings di ba? para di na eca-calculate ng vray yung IR and LC maps. so mas magha-half yung rendering time nya sa high res mong render. kung low res lang din naman ang render mo kahit di mo na rin e save yung IR and LC.

well for instance.. magsasave ako IR & LC then check ko ung dont render final... in a resolution na 200x150.. and very low sa current preset sa IR and 200 subdv lng sa LC
then pag nka produce na ng file.. il render it for final in 4000x3000... then very high sa current preset ng IR and 1500 subdv sa LC...
will the final render will just be good?

ung ginagwa ko kse ever since.. is high na settings from saving the IR & LC file hanggang magfinal render ako... diff lng is ung reso.. maliit pag nag precalc ako tpos ska malaki sa final... cencya na hirap mag explain sa text..
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Post by Norman Sun Jun 06, 2010 4:54 am

tama din bro yung procedure mo since maliit lang naman yung resolution mo. basta ang importante ma save mo yung Ir saka LC maps mo bago ka mag proceed sa higher resolution.
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Post by whey09 Sun Jun 06, 2010 8:48 pm

@ sir regiie & 41 - i tried both of your procedure but my render turns black when i render it for final,,ano kaya mali?
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Post by Norman Sun Jun 06, 2010 8:54 pm

sir whey, san ba dumilim?nung nag render ka ng final render? dalawa lang ang na experience ko kung bakit dumidilim e. 1. naka off yung lights 2. nakahide yung light.
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Post by whey09 Sun Jun 06, 2010 9:25 pm

dude, eto mga test renders ko,

1. sinundan ko yung procedure mo, with lights on and naka uncheck yung hidden lights
How to save V-ray light cache and irradiance map - Page 2 1-3

2. my normal setup, hindi ko sinave IR and LC ko pero yung lights naka off with g.i. and naka check yung hidden lights.
How to save V-ray light cache and irradiance map - Page 2 2-3

ano kaya mali?,,bakit hindi ko ma achieve yung katulad nung 2nd image ko when i save my IR and LC
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Post by Norman Sun Jun 06, 2010 9:40 pm

WA. bakit ganun talagang nawala yung lighting mo a..hmm......post mo na rin yung setting mo bro kung ok lang...di ko ma pin point bakit ganun ang problem sa file mo...na try mong subukan sa ibang project? baka may setting na nagalaw e.....
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Post by whey09 Sun Jun 06, 2010 9:50 pm

eto settings ko for my 2nd image

How to save V-ray light cache and irradiance map - Page 2 VraysunHow to save V-ray light cache and irradiance map - Page 2 1-4How to save V-ray light cache and irradiance map - Page 2 2-4
How to save V-ray light cache and irradiance map - Page 2 3-2How to save V-ray light cache and irradiance map - Page 2 4-1How to save V-ray light cache and irradiance map - Page 2 5-1How to save V-ray light cache and irradiance map - Page 2 6-1
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Post by Norman Sun Jun 06, 2010 10:48 pm

sir whey wala talaga akong makitang problem sa setting mo. last nalang send mo nalang yung file mo sa email ko kung ok lang. check ko yung file mo. fforty1@yahoo.com
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Post by whey09 Sun Jun 06, 2010 10:50 pm

ok cge, tanggalin ko na yung mga trees para magaan
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Post by Norman Mon Jun 07, 2010 10:20 am

whey, di pa rin ako sure sa solution sa problem mo pero ang nakikita kong possible reason is mali yung nalagay mong save maps ng IR saka LC baka sa ibang files silang maps. nerender ko sya without touching anything from the setting na meron ka ng vray since pareho tayo ng version ng vray kaya wala akong problema nung inopen ko sa akin. normal lahat same ng 2nd image mo na na post mo.

1st render. wala akong ginalaw sa setting,
How to save V-ray light cache and irradiance map - Page 2 01-4-2

2nd render, try kong e-set yung IR saka LC maps "to file" pero missing yung maps nila
How to save V-ray light cache and irradiance map - Page 2 02-4-1

3rd image, ito nilagyan ko ng different maps ng IR and LC. overbright ang lumabas kasi iba nga yung data nya.
How to save V-ray light cache and irradiance map - Page 2 01-4-2

pero yung sayo parang default render ang nangyayare sa kanya e. try mo nalang e merge sa bagong file tapos set mo nalang yung vray ulit. then gawin mo ulit yung procedure.
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Post by whey09 Mon Jun 07, 2010 5:45 pm

thank sir, sige subukan ko yung suggestion mo
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Post by jheteg Sat Jun 12, 2010 1:00 am

sir f-fortyone, ask kolang po. pwedi po bang kahit hindi parehas yung resolution ng first render (for saving LC and IM) at yung final render? example 600X300 for first render and 2000x1000 for final render. salamat po.
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Post by Norman Sat Jun 12, 2010 5:45 am

jheteg wrote:sir f-fortyone, ask kolang po. pwedi po bang kahit hindi parehas yung resolution ng first render (for saving LC and IM) at yung final render? example 600X300 for first render and 2000x1000 for final render. salamat po.

pwedeng pwede...yan nga yung purpose ng pagsave nun e....then syempre sa final kung ano na yung set up mo. pero advice ko lang bro. ko 2000x1000 ang final mo better save it na mga 800x600. pansin ko kasi pag masyadong maliit yung resoulution na nasave mong file para sa LC at IR maps may effects sya sa final e. parang dapat proportion pa rin yung maliit na resolution sa malaki.
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Post by jheteg Sat Jun 12, 2010 5:58 am

f-fortyone wrote:
pwedeng pwede...yan nga yung purpose ng pagsave nun e....then syempre sa final kung ano na yung set up mo. pero advice ko lang bro. ko 2000x1000 ang final mo better save it na mga 800x600. pansin ko kasi pag masyadong maliit yung resoulution na nasave mong file para sa LC at IR maps may effects sya sa final e. parang dapat proportion pa rin yung maliit na resolution sa malaki.
thanks for that quick reply. other question po. kung sa irradiance map po sinet nyo to very low then save, di po ba yung prepass ng very low 2 times lang. kapag sa final render po, yun po bang prepass ng very low ng IRmap na niload nyo ang magagamit? kasi po sa final render ko, madalas po kasi medium na may 3 prepass or high na may 4 prepass po yung IRmap ang ginagamit ko. pesensya napo at marami akong tanong. sarap po kasing matutu. Very Happy salamat po.
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Post by Norman Sat Jun 12, 2010 6:05 am

wala naman magiging problema yan sir kung sakaling itaaas nyo na nga yung irradiance map mo to medium or higher wala naman akong naging problem. sa quality ng rendering. yun lang sa proportion ng image reso saka final render reso ang napansin ko. personal settings ko, ako di ko tinataas yung iiradiance map ko kahit final na.hehe...low pa rin gamit ko mas mabilis e saka okey naman din yung quality....
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Post by jheteg Sat Jun 12, 2010 7:47 am

f-fortyone wrote:wala naman magiging problema yan sir kung sakaling itaaas nyo na nga yung irradiance map mo to medium or higher wala naman akong naging problem. sa quality ng rendering. yun lang sa proportion ng image reso saka final render reso ang napansin ko. personal settings ko, ako di ko tinataas yung iiradiance map ko kahit final na.hehe...low pa rin gamit ko mas mabilis e saka okey naman din yung quality....

follow up ko lang po dun sa previous question ko....
alin setting po ba ang gagamitin ng vray for final output. yung 1 po ba current preset: high or 2 yung naka saved then loaded na vrmap na current preset: very low. salamat po. pasensya napo sa kakulitan ko. Very Happy
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Post by Norman Sat Jun 12, 2010 8:55 am

tama yan sir....yung number 1, minsan di ko na nilalagay yan na "high" kasi matagal pa lalo yung render..nagiging 4 pass di ba or 5 pass? wala naman akong napansin na difference kahit itaas mo pa into high...sana malinawan pa tayo ng mga master.

yung number 2 tama yan. dapat nakaload na yung na save mong map galing sa una mong pre render na low res...

saka ka mag final render....
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Post by jheteg Sat Jun 12, 2010 9:17 am

f-fortyone wrote:tama yan sir....yung number 1, minsan di ko na nilalagay yan na "high" kasi matagal pa lalo yung render..nagiging 4 pass di ba or 5 pass? wala naman akong napansin na difference kahit itaas mo pa into high...sana malinawan pa tayo ng mga master.

yung number 2 tama yan. dapat nakaload na yung na save mong map galing sa una mong pre render na low res...

saka ka mag final render....
thank you po sir for that very informative answer. dami ko pa po kasing di alam sa 3dmax and vray. learning stage palang po kasi. salamat po. wave
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