Vray - direct light or vray sun?

[Sketchrender]

Watched a video recently on lighting set ups in vray.

I have always used the vray sun ie compass ect as get the accurate set up for accurate lighting on site.

 

The direct light is more flexible but again not accurate time wise.

 

What do most people use generally in day to day work ?

 

Areas there a time saving with using the direct lighting set up?

 

Thanks

 

Phil

[D@VE]

it really depends on you, there is no set rule

people i know often used Vray Sun + HDRI Environment

And there is people i know that use direct light with Vray Sky (manual sun)

 

it also depends if you use max camera or vray camera..

 

i guess it comes down to what you want to achieve, and which option can help you achieve the most

 

sometimes i use the day light system, when the image requires me to provide correct time and shadow for the image

[Sketchrender]

Great thank you.

I have never found the Hdri system to work correctly, have you a link to a scene where the Hdri is set up , so I can get it to work correctly.

I generally only use vray sun, as most of the world has to be Accurate.

 

Thank you

 

Phil

[D@VE]

i don't have one exactly..

but usually just for testing i would HDRI for background

and then most is spherical

and then give it gamma 1.8 to 2.2..

 

that would usually good for your environment lighting

[Corey Beaulieu]

I usually use the Vray sun for just about everything, but as d@ve said there is an occasional need to be exact which needs a daylight system.

 

About the hdri though, there are surely different ways to do it, but as further advice, I never change the gamma on it, just leave it 1.0. Spherical is a must, but the real adjustment comes in the output multiplier. I usually have it up higher than 1.0which is default. Usually 3.5 or so. Just start a new map in the slate editor by right clicking the art board and then go to maps, standard, vrayhdri. Load your image at the top and set the environment mapping, the environment multiplier, and then the horizontal rotate will place your light source where you want it. Either the same map or a dumbed down version (8bit) usually get aced in the reflection and Gi overrides in the Vray environment roll of the render settings and then place your vrayhdri into the map input of a sky dome and figure out which camera exposure works best for your image. It's a little daunting at first because you aren't using a light object light a sun, but the colorrichness is great and it is ultimately easy.

[RyderSK]

i don't have one exactly..

but usually just for testing i would HDRI for background

and then most is spherical

and then give it gamma 1.8 to 2.2..

 

that would usually good for your environment lighting

 

 

No, HDRi should not be gamma adjusted to this, it already is in linear space,etc. with gamma at 1. For sharper shadows, a trick with lowering the gamma as low as to 0.6 works, but not the other direction.

 

For quick tutorials on how to correctly set it up:

 

http://www.ronenbekerman.com/hdr-image-based-lighting-3d-scene-setup/

 

And this :

 

http://www.cgskies.com/resources.php

[Sketchrender]

Sorry for not getting back to you all.

 

Thank you I appreciate the replies.

 

Phil