What is the proper setting for a night rendering?

What is the proper setting for a night rendering?

redhouse.j
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Message 1 of 14

What is the proper setting for a night rendering?

redhouse.j
Enthusiast
Enthusiast

What is the proper lighting setting for a night rendering? I watched a tutorial and it said to use "artificial," however once you do that, it disables "cast shadows" with no way to enable them. Is that just the way it is?

 

Trying this in my project and also in the vanilla template with the same result. No, it's not a view template. As soon as you switch from sunlight to artificial it disables the shadows.

Screenshot 2024-01-01 235805.png

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13 Replies
Replies (13)
Message 2 of 14

barthbradley
Consultant
Consultant

I'm not clear what you are trying to render. Sounds like you want a dust or dawn rendering with artificial and sun.  What are your Sun Settings?  Post a Screenshot of that dialog box.  

 

...or just post your project file here and let us take a look and see.  

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Message 3 of 14

syman2000
Mentor
Mentor

Which version of Revit are you using? If you have Revit 2023, you can use Twin motion for free and it is way better and more accurate than Out of the box Revit Rendering.

Check out my Revit youtube channel - https://www.youtube.com/user/scourdx
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Message 4 of 14

redhouse.j
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I am using RevitLT 2024, unfortunately. I think it just can't do this. Prior to rethinking my subscription, does the full version of Revit allow artificial lights to cast shadows?

 

I would like the artificial light to make the columns cast a shadow on the ground. I don't think that is possible to do. If I switch to a shaded view (from realistic), the artificial light just shuts off (even though the view is still set to sun and artificial). I'm trying the following without success. Maybe there is a toggle somewhere overriding the lighting settings?:

 

1) with lighting set to artificial only, it won't cast shadows. Per the image above the columns do not cast any shadows.

2) with lighting set to sun and artificial, a still setting of 3am in Boston MA, the sun does not turn off or go dark. It's as bright as day. Do I have to adjust a slider somewhere to make it darker? I'm confused why if the sun is set to 3am that would not make the rendering any darker.

 

These settings aren't intuitive (to me anyway). Why is the sun still shining at 3 am?

Screenshot 2024-01-02 102827.png

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Message 5 of 14

barthbradley
Consultant
Consultant
Accepted solution

Revit casts shadows.  

 

Shadows Columns.png

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Message 6 of 14

barthbradley
Consultant
Consultant

Bump up the light wattage

 

Wattage.png

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Message 7 of 14

redhouse.j
Enthusiast
Enthusiast

Oh man that looks good, but it doesn't work in LT. Yet another LT limitation! I have to ponder whether that feature is worth paying 6x more...

 

Thanks guys and Happy New Year

Message 8 of 14

syman2000
Mentor
Mentor

Try checking off this if you have floor object below. If you click this on, the shadow will appear at this level.

 

syman2000_0-1704221831807.png

 

Check out my Revit youtube channel - https://www.youtube.com/user/scourdx
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Message 9 of 14

redhouse.j
Enthusiast
Enthusiast

A good idea, but it doesn't work. This must be an LT limitation.

Screenshot 2024-01-02 110315.png

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Message 10 of 14

barthbradley
Consultant
Consultant

How is the natural light penetrating the room?  Did you remove walls or something?  

 

Here's no walls with your settings:  

 

Light at Night.png

 

...and light intensity bumped up A LOT.  Electric bill will surely bankrupt homeowner. Make sure you get paid before they move in.  😉  

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Message 11 of 14

redhouse.j
Enthusiast
Enthusiast

Ya I can't replicate what you're showing me with LT. The walls are on. Aside from this, I'm also having issues that Generic Models will not block light. I'll go try the full version demo and I bet all the lighting/rendering issues will go away.

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Message 12 of 14

barthbradley
Consultant
Consultant

@redhouse.j wrote:

Ya I can't replicate what you're showing me with LT. The walls are on. Aside from this, I'm also having issues that Generic Models will not block light. I'll go try the full version demo and I bet all the lighting/rendering issues will go away.


 

Well, if the walls are on, those setting don't do squat for me either.  What's are your Rendering results with Artificial only - and the light intensity bumped way up?  

 

 

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Message 13 of 14

redhouse.j
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Enthusiast

That shoots us back to my original settings where I first noticed this. With the lighting set to artificial only, the shadows automatically get toggled off and disabled (greyed out) and well, no shadows are cast on the columns.

so it looks exactly the same as with sun and artificial 🤷‍♂️ 

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Message 14 of 14

barthbradley
Consultant
Consultant

Okay, I missed the LT reference.  So, we're not talking "Rendering", we're talking "Realistic"; right?  I don't have shadows in Realistic either.  

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