Interior Lightning

[andrelongo]

Hello everyone!

 

I hope you can help me out with this one. I have a little problem when it comes out to lightning in Vray... Everytime I try to do a regular illumination (Vray Sun (sometimes HDRI) + Skylight portals) my room gets too dark. So the trick I have been taught was tweaking the Vray Camera setting. On these two images all that I have changed was the f-number from the default 8 to 1.8 or 1.6. Now my room have perfet ilumination but if I want to take a shot seeing the window the outside (and not only the outside, see for exemple the ceiling) everything it's just too blown out. I tried using the GI Overide and changing my background, but the results were not so good... Tried messing with the Sky Environment Map too, solves my problem about the background but my ceiling and walls stay the same way. For color mapping I mostly use Reinhard, but even changing to Exponential don't solve my problem. What am I gonna do?

 

Thank you very much.

 

[Ismael]

http://www.workshop.mintviz.com/tutorials/light-and-render-an-interior-day-and-night-scene-using-3ds-max-and-v-ray/

[dhammikaherath]

If you are a beginner I believe first you start by applying a normal camera. Then you have to tune lights only. Gradually you can learn the behavior of the Vray Cam with lights..

[Chris MacDonald]

Use the VRayPhysicalCam.

 

Use one for indoor, and one for outdoor. It's the same as the real world; when you go outside with your camera you don't turn the sun down, you change your camera settings instead.

[andrelongo]

 

 

I'm not really a begginer. Those two images are mine (the Loft is inspired into Matheus Passos work, the kitchen is my project, I'm an architect), but recently I've discovered a little option under the Color Mapping tab that says "Don't affect colors (Adaptation Only)" and that gives me a really good result, because the raw renders usually have a very desaturated feeling, but I just can't tune in my lightning with this option, because the whole scene becomes a lot more darker and I just can't solve the problem.

[dhammikaherath]

Did you set your gamma flow correctly?

 

http://www.davidfleet.com/tutorials/linear-workflow

 

Above link gives a great idea about Linear Workflow in 3Ds Max VRay.

[andrelongo]

 

Sure! I always use VFB and Gamma 2.2! This one is one of my latest experiments... Notice how dark the room is and how bright the outside is. I notice I have curtains, but even excluding them in the sun proprertis my lightning it's just not a good and clear lightning... I did read the tutorial that Izamel Orosco (thank you very much, btw) posted and I noticed that the clear render it's because he have lots of openings in the ceiling and windows, but and in real situations as my room? I know he is not going to be as dark as it is in the 3D. I don't want to add a lot of Vray Lights. Changing the f-number and ISO sometimes solves my problem but the exterior is so bright that the window completly disappears

[dhammikaherath]

1. Are you using any material to the window? If you don’t want to see any material just delete the window glass.

 

2. Reduce the Sun multiplier (really low. Something around 0 .5 - 0.01 – Depend on your camera settings) and place a Vray Plane light inside of the room (In front of window – make it smaller than the window). Tick invisible.

[hassankhalid]

i dint understand the behavior thing u said? please be more clear bcoz i always face problem in camera settings please reply

If you are a beginner I believe first you start by applying a normal camera. Then you have to tune lights only. Gradually you can learn the behavior of the Vray Cam with lights..

[aaronrumple]

...adjust exposure for interior. Then set colors space to Reinhard and pull the burn value down to compensate for the overexposed exterior - maybe quite low. (Typically I like to work linear with a burn of 1 when possible and work with the exr image in PS)

 

Sometimes on images with significant range between interior and exterior, I'll run separate exposures for interior and exterior and composite in PS. (A manual HRDI image sort of.) You have to use care so it doesn't look fake.

[Ismael]

Read this: http://www.photocentric.net/too_dark_solutions.htm

 

Solution A: Lower the Outside Light, "You can't turn down the sun, ...". "Or shoot near dawn or dusk when daylight levels are closer to interior lighting levels."

Yet, consider that in Vray you can make the sun be twice the interior lamp intensity if you so desire. Do that perhaps...

 

Solution B: Turn on the Lights. Also add lighting.

This is the opposite of bringing the sun's intensity down as suggested in Solution A.

 

Solution C: Use flash

Akin to solution B.

 

 

My approach:

 

Light the interior however I like and adjust the camera to capture that illumination.

Reduce the sun intensity that the outside geometry viewed through same camera looks lit as I desire and the direct light hiiting interior geometry appears Not as it would but As I Would that it looks like.

 

Remember you are the owner of the Camera, the Lights and the Action. Do as you please.