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 Post subject: Parisian Restaurant
PostPosted: Wed Apr 02, 2014 6:12 pm 
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Ewok
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Location: Kolkata
I have been experimenting with Vray for a few months now. Interior shots are always tricky because we need to balance out both natural and artificial lights. Here I have tried to keep lights simple and as natural as possible. Rendered with Vray and 3ds Max 2013.
https://farm8.staticflickr.com/7087/13565719343_628d493a8d_h.jpg


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 Post subject: Re: Parisian Restaurant
PostPosted: Thu Apr 03, 2014 11:16 am 
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Balance of light is strange.
The image outside the window is darker than the light coming into the scene.
When you take a photograph looking at a window you need to expose for EITHER the interior, or the exterior. It's very hard to take a photograph of an interior, and keep the outside from over exposing. so your picture seems weird, because the outside is relatively underexposed.
I also think the balance of light - the amount of back light should be stronger on those chairs that are closer to the window.

The image outside the windows is:
very blurry - more than the depth of field on your render. actually seems low-res in places.
Too saturated - particularly the yellows and greens.

The table cloth in the foreground seems to have a lot of artifacts on it - possibly from an under sampled gi or fg component.

overall saturation is really high. the tables and chairs seem untextured.

I keep getting distracted by the exceedingly blue LCD TV hanging nearly in the middle of frame. being the only cool colour it steals a LOT of attention.

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 Post subject: Re: Parisian Restaurant
PostPosted: Thu Apr 03, 2014 5:41 pm 
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actually the room is lit with both natural and artificial lights. As such, its is bound to look more brighter than the exterior. The blurriness of the exterior can be lowered down. I deliberately kept this image saturated because I like the colours generated through saturation. The artifacts on the front table cloth are due to ao. I need to raise the sample size. Thanks for the feedback Dr Chops.

Regards,
Renegade


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 Post subject: Re: Parisian Restaurant
PostPosted: Thu Apr 03, 2014 6:03 pm 
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Ummm... no.

Exterior light: specifically natural, day light. Is going to be stronger than any artificial interior lighting.
We're talking light bulbs, candles vs THE SUN.

If you expose for the interior, the exterior will be brighter.


Here's a picture I found on google of a restaurant interior, daytime shot, with additional interior artificial lighting.
I've indicated the areas where I see problems in your render. mostly they are to do with the exterior image you are using. but there is a little bit of balancing you could do the make your image stronger.

the bottom most image is a quick photoChop of where you could go with this.
Saturation is a personal artistic choice. But high saturation is a calling card of CG, lowering it will pretty much always make your CG better.


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 Post subject: Re: Parisian Restaurant
PostPosted: Thu Apr 03, 2014 6:05 pm 
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quick note.
The arrow indicating the chair. is about the value. because the back of the chair faces away from the window, its primary light source is bounce light. and is therefore one of the darker things in the photo. In your render the backs of the chairs are quite bright.

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 Post subject: Re: Parisian Restaurant
PostPosted: Thu Apr 03, 2014 10:20 pm 
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Listen to SplattR, he knows his stuff!

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 Post subject: Re: Parisian Restaurant
PostPosted: Fri Apr 04, 2014 1:50 am 
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I got your point SplattR. I am starting my render again and will follow your guidelines this time.


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 Post subject: Re: Parisian Restaurant
PostPosted: Sat Apr 05, 2014 2:01 am 
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Hi,
I am posting an update. Awaiting feedback.


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 Post subject: Re: Parisian Restaurant
PostPosted: Mon Apr 07, 2014 11:09 pm 
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Your depth of field needs fixing. You have 'some' things blurred near the back of the restaurant, but outside the windows everything is in focus. Also most of the restaurant interior is in focus, but then the blurring is sudden and heavy, which doesn't seem right. It should be more gradual, and probably a lot less blurry.

I'm not a lighting expert, but looks better than before!

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 Post subject: Re: Parisian Restaurant
PostPosted: Tue Apr 08, 2014 4:14 pm 
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I am posting another light setup. Feedback please.
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 Post subject: Re: Parisian Restaurant
PostPosted: Tue Apr 08, 2014 5:11 pm 
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Can we see some of your reference images?

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 Post subject: Re: Parisian Restaurant
PostPosted: Tue Apr 08, 2014 5:35 pm 
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Sorry, I dont have any reference images. I am just doing it from my imagination. It is an old project which I never completed. Now I have time so I am rendering all sorts of possiblities.


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 Post subject: Re: Parisian Restaurant
PostPosted: Tue Apr 08, 2014 6:21 pm 
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Hmmm... I think that's what went wrong last time! Last time it looked like you were trying to make a picture look real, but it fell short. Which is why your feedback was referenced against the 'real world'.

Again, in this image, it seems like you're trying to make it look real, but again it's not quite correct. I think if you keep going from your imagination, you'll keep ending up in the same position - almost right, but not quite there. And the part that makes it 'right' is knowledge of how the real world works. You won't get that from your imagination, but from looking at reference images.

It'd be great to see you have another go at rendering that after doing some research into sunset + interior lighting. I'll bet afterwards you'll have a much stronger image.


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