Using HDRI in Vray SketchUp

Ok here is the tutorial on how to use HDRI in Vray SketchUp.



You can download it on my Blogsite.
http://nomeradona.blogspot.com/2011/04/nomeradonas-tutorial-using-hdri-in-vray.html

slamat sir...

very useful tutorial master nomer..maraming salamat

thanks sir...laking tulong toh..

good to know... ang dami kasing tanung nga dito...

sir nomer para saan po ung specular map? at ung normal map paano po gamitin ang mga ito bakit po blue lang siya? newbie lang po ako pasensya na sa simple questions

bakit may normal map at specular map na tanong ka dito bro.. hehehe. hdri to. can you place this sa vraysketchup Q and A.. dun nalang natin answerin.

sir nomer tanong ko lang po, bakit po nung sinubukan ko gawin yung nasa HDRI tutorial, parang masyado po malaki yung nagiging reflection ng HDRI? di n po makita yung buong image, part lang ng image yung nrereflect? pwede po b mascale yung reflection nun?

sir nomer, how would I know if the HDRI I'm using is Shperical, Cylindrical or Boxed type?
I just got my HDRI files from a friend, and when I asked him, he didn't know either.

sir nomer my tanong lang po ako about sa hdri, kasi yung tutorial mo is for interior, ask ko lang po kung panu siya iapply sa exterior na nakablend sa sun. kasi yung hdri pag inapply sa environment yung shadows niya smooth at di distinct, pero pag sun yung gamit defined na defined yung shadows. panu po yun sir? hehe.. Thanks po sir in advance!

arki_jezs wrote:sir nomer tanong ko lang po, bakit po nung sinubukan ko gawin yung nasa HDRI tutorial, parang masyado po malaki yung nagiging reflection ng HDRI? di n po makita yung buong image, part lang ng image yung nrereflect? pwede po b mascale yung reflection nun?

i think this is about the relationship of the zoom at scale ng model.

agm65 wrote:sir nomer, how would I know if the HDRI I'm using is Shperical, Cylindrical or Boxed type?
I just got my HDRI files from a friend, and when I asked him, he didn't know either.

it depends sa hdri file mo. i cant answer since i dont have your hdri file. what you can do is try to test it. i load mo yung hdri duon s aslot at ilagay mo as spherical or cylindrical. tapos tingna mo sa preview window.

darzie080808 wrote:sir nomer my tanong lang po ako about sa hdri, kasi yung tutorial mo is for interior, ask ko lang po kung panu siya iapply sa exterior na nakablend sa sun. kasi yung hdri pag inapply sa environment yung shadows niya smooth at di distinct, pero pag sun yung gamit defined na defined yung shadows. panu po yun sir? hehe.. Thanks po sir in advance!

pwedeng gamitin mo ang blend type material (first slot ay sky, second slot ay yung hdri.)

tinry ko na po yun sir pero yung shadow di parin defined talaga, at binabaan ko yung intensity ng sky kasi malakas. kelangan ba nakaoff ang physical camera nun sir?

sir nomer my way pu ba para maging detailed yung shadow kung gagamit ka ng hdri? kasi laging smooth yung nagagawa ko. hehe.. my tips po ba kayo how? thanks sir!!

darzie listen carefully ok. this is what you have to do.

1. click M sa setting ng environment GI color
2. Click Blend map (not sky)
3. Texture A (select SKy map.. sun lang sya)
4. Texture B (select sky. this time load mo yung hdri)

ngayon you are using both HDRI and sun.

Hehe.. thanks s lot sir!!! gets ko na po! thank you!! dami ko talaga natututunan dito sa'yo at iba master dito.. more power sir!

darzie080808 wrote:Hehe.. thanks s lot sir!!! gets ko na po! thank you!! dami ko talaga natututunan dito sa'yo at iba master dito.. more power sir!

hehehehehe

please help, I really cant get the background to work. I did the blend (sky+hrdi) then added hdri for the background and its still dark (picked a bright dosch hdri for the test) If I turn off camera its super bright. sorry if this is a dumb question but really having trouble with this one, please help me with the right settings, thanks in advance.
[img]https://img.photobucket.com/albums/v231/mel3dx/vrayrender.jpg[/img]
[img]https://img.photobucket.com/albums/v231/mel3dx/vraysettings.jpg[/img]

when you are using the blend map automatically the sun. you have to remember that the sun is a big powerful omni light. therefore you have to decrease its intensity if you are using it together with HDRI.

the vray physical camera was design to act as counter balance on the sun bright exposure. you used the camera so its underexposed your lighitng. so you need to read the manual how to adjsut hte camera exposure how to brighten up the image. also you need to increase far far high the multiplier of your HDRI in order to appear. both can work but you need to first understand the above and second all your with experimentation.

pero kung hindi ka pa sanay, i will be advising you to just adjust the intensity of your sun ( siguro umpisa ka sa .01 instead of 1) ngayon tingan mo kung anu ang magiging epekto.

cheers...

Thanks Nomeradona sa advice, basahin ko nga ulit yung manual... bago lang ako sa hdri, kla ko easy route ang pag gamit ng hdri pra wla ka na masyado ina-adjust. I think nakarating na ako sa point na masaya ako sa intensity ng sun ang hindi ko ma control yung background, hindi nag ma-map yung sky (wala yung horizon), then kung hindi madilim sobrang liwanag. most of my models panaman na ginagawa ko puro may storefronts or big windows thats why big deal sa akin yung lumabas ng maayos yung sky background. Thanks for the info and will continue to explore the plugin.

actually if you are not using sun and only hdri super strightforward lang sya. pero since you are using blend map ng sun at hdri so medyo kakapain mo yan.

mga sir try nyo tong inexperiment kong setting sa ENVIRONMENT with default subdivs para mabilis ang render:
GI-multiplier=.8-.5, Sun (you may lessen its intensity for lighter shadow)
BG-multiplier=3, HDR bitmap [environment-spherical (kung gusto nyo yung reflection at UVchannel pag marami kayong reflection source)]
CAMERA SETTING=
shutter-100 (lessen kung dark)
Fstop-6 (babaan kung dark)
ISOspeed-150 (lessen kung sobra ang exposure)
make sure na naka tick yung exposure right next sa ISOspeed mo.

ito kasi ginamit kong setting sa Fourth Post ko habang pinag aaralan ko ang HDR lighting ng exterior sa SU at comparison ng raw HDR at combi ng HDR at vraysun.

http://www.cgpinoy.org/first-5-post-practice-3d-wip-f15/fourth-post-hdr-vraysun-update-t15776.htm

qnald wrote:mga sir try nyo tong inexperiment kong setting sa ENVIRONMENT with default subdivs para mabilis ang render:
GI-multiplier=.8-.5, Sun (you may lessen its intensity for lighter shadow)
BG-multiplier=3, HDR bitmap [environment-spherical (kung gusto nyo yung reflection at UVchannel pag marami kayong reflection source)]
CAMERA SETTING=
shutter-100 (lessen kung dark)
Fstop-6 (babaan kung dark)
ISOspeed-150 (lessen kung sobra ang exposure)
make sure na naka tick yung exposure right next sa ISOspeed mo.

ito kasi ginamit kong setting sa Fourth Post ko habang pinag aaralan ko ang HDR lighting ng exterior sa SU at comparison ng raw HDR at combi ng HDR at vraysun.

http://www.cgpinoy.org/first-5-post-practice-3d-wip-f15/fourth-post-hdr-vraysun-update-t15776.htm

sir, how to make the shadows solid? kasi soft shadows po ang na pro produce ng hdr, i tried blending hdr and vray sun pero ganun parin,

adjust mo ang size multiplier mo ng sun/sky under environment/GI (skylight)/size multiplier/default = 1....habang lumalaki ang value mo faded ang drop shadow mo habang lumiliit ang value sharp ang shadow mo.try lang...

Mga sir, para po ba ma-acquire yung gustong area ng hdri map na maging background,
irorotate lang yung model to certain angle? Kapa-kapa style? and then adjust the angle of north?

Is there any easier way to achieve yung gustong part ng HDR map sa BG?
medyo relevant din po ito sa question about scaling nung map.
TIA po mga guru.

this is a bit difficult to achieve harry, kase it depends sa scale ng hdri, scale ng model at siempre yung layun ng FOV. there is no easy way. but vray works in inches.