V-Ray Interior Daytime Lighting Help  Topic is solved

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V-Ray Interior Daytime Lighting Help

Postby StudioMinimale » Fri Mar 22, 2019 6:16 pm

Hi! This is my first forum post ever, so I apologize if I do something wrong or the formatting looks odd. I just have a question about interior lighting for V-Ray.

I've been using this software for a while now, and I feel like I have a pretty good understanding of how to use it, however, there's just one thing I can't seem to get a grasp on and I'm hoping someone is able to help me.

How do you achieve a day time render without the sunlight being so harsh with noticeable lines? I feel like I've played around with the sunlight settings for ages, as well as even rectangle lights but I can never achieve what I have in mind.

If I'm not making sense, here are a couple of pictures of what I'm talking about:
https://www.behance.net/gallery/2986170 ... Br-bedroom
https://www.instagram.com/p/Brh5JMGlXTB ... m6er95abik
(I think they might both be a different rendering software, but I still think you would be able to achieve the same daytime lighting look in V-Ray, but I could be wrong?)

You can clearly see the sunlight hitting the floor, but it's very soft, and again, no harsh lines from the window frame.

Like I've said, I've played around in the sunlight settings, I've tried rectangle lights but I always end up with the harsh lines. I've never tried a dome light, so maybe this could be it?

Any advice would be really appreciated! If you need more info or clarity, please let me know! Thank you so much if you're able to offer any help!

For reference, I've been using V-Ray 3.6 with SketchUp 2017.
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Re: V-Ray Interior Daytime Lighting Help  Topic is solved

Postby Robby_GF » Thu Mar 28, 2019 7:47 pm

I understand that you don't want to get sharp shadows from the objects which are casting them.

Basically, you need to simulate the real lighting situation with the lighting tools you have.

If you want an atmosphere of a hazy overcast day, don't use sharp directional Sunlight, or just make sure that it is a little percent of the overall lighting. For light falling to the room from outside, use Dome instead, preferably with some HDRI sky map.

You can try to put a square light outside the window as well, but then make it bigger and place it in some distance. But dome light is the best shot. You can also use color in environment settings of older versions of V-Ray ( I don't know if they are still present in render settings ), but they will give you lower quality shadows because they use GI to be calculated.

This way you will get a soft key light\shadows and you can add some artificial lighting inside, with lower temperature and less intensity.
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Re: V-Ray Interior Daytime Lighting Help

Postby StudioMinimale » Thu Mar 28, 2019 8:38 pm

Wow! Thank you for this reply. That is a lot of great and useful information! I didn't think about trying these settings or using a dome light. I look forward to applying these in my next model. Thank you, again!
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Re: V-Ray Interior Daytime Lighting Help

Postby majid » Sat Mar 30, 2019 10:46 pm

in recent versions when using Dome light , just activate the "Adaptive option" for dome light and this way there is no rectangular light on the windows and also would have faster (up to 7 times) render.
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Re: V-Ray Interior Daytime Lighting Help

Postby StudioMinimale » Tue Apr 02, 2019 9:32 pm

majid wrote:in recent versions when using Dome light , just activate the "Adaptive option" for dome light and this way there is no rectangular light on the windows and also would have faster (up to 7 times) render.

Thank you so much for this useful information! I look forward to trying it out on my newest model! Thank you again!
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Re: V-Ray Interior Daytime Lighting Help

Postby rv1974 » Wed Apr 03, 2019 6:30 am

To get soft shadows with default Vray sun increase sun disc (x5+)
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