twilight render with image

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lucadentone2
Posts: 2
Joined: Thu Feb 13, 2020 12:31 pm

twilight render with image

Post by lucadentone2 » Thu Feb 13, 2020 12:43 pm

Dears I have a simple question. I have in sketchup an image png insert in a scene and a model of a house insert on the image. When I am trying to use twilight render 2 , the render is done only for the model in sketchup but not for the image in the background. Someone can help me to resolve this problem?
My objective is to do a render of a model realized in sketchup and the image where the model is overlapped

Thanks

Luca

Chris
Posts: 5047
Joined: Sun Mar 08, 2009 3:00 am
OS: Win10
SketchUp: 2016

Re: twilight render with image

Post by Chris » Thu Feb 13, 2020 2:21 pm

It sounds like you are talking about a "Photo Match". If so, Twilight Render doesn't render the Photo Match backgrounds. You could create a plane and place the image on it and then position and size it appropriately in the background. Then Twilight Render would render it.

Fletch
Posts: 10895
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OS: PC 64bit
SketchUp: 2013-20
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Re: twilight render with image

Post by Fletch » Thu Feb 13, 2020 4:11 pm

  1. Render image at exact ratio to match the original background photo
  2. Render Alpha mask at 2x resolution of final rendering, resize down in photo editor
  3. Use photo editor program (like Photoshop or The Gimp)
  4. Use Alpha Mask to overlay Rendered image on top of Background photo
    :>: :>: :>: Tutorial: How to use the Alpha Mask / Alpha Channel

Image

Image

lucadentone2
Posts: 2
Joined: Thu Feb 13, 2020 12:31 pm

Re: twilight render with image

Post by lucadentone2 » Fri Feb 14, 2020 5:48 am

Dear Chris and Fletch for the answer. I am very new twilight render. Can you please explain better what I have to do because I didn't understand your suggestion.

Just to clarify my problem is very basic and I think it is a basic tool of every rendering software.

a have a picture PNG. I imported this image in sketchup. I create my model. I used the tool of sketchup to overload the model on the picture. I use twilight render to render the totality. It is not working on the picture but only in the model.

How the render can work even in the picture?

Thanks

Luca

Fletch
Posts: 10895
Joined: Fri Mar 20, 2009 2:41 pm
OS: PC 64bit
SketchUp: 2013-20
Contact:

Re: twilight render with image

Post by Fletch » Fri Feb 14, 2020 5:26 pm

Twilight Render does not load the background picture in automatically.
You can set sky in the Environment Settings to "Background Image" and "Fit" and choose the same image to be rendered with your model.

Fergos
Posts: 2
Joined: Sun Feb 16, 2020 10:15 am
OS: win 10
SketchUp: 2020

Re: twilight render with image

Post by Fergos » Sun Feb 16, 2020 10:36 am

Hi!

I think I have the same problem: Black renders in SU 2020 & 2019 (but not 2018)

After importing png¨'s and jpg's they renders in Twilight v2 to black only - despite default settings (and no matter how many threads...) in versions tried out here, SU 2019 & SU 2020:
SU 2019.JPG
model made in 2018, rendered in SU 2019
SU 2019.JPG (466.87 KiB) Viewed 9 times
SU 2020.JPG
model made in 2018, rendered in SU 2020
SU 2020.JPG (441.54 KiB) Viewed 9 times

In SU 2018 everything works OK, though
SU 2018.JPG
model made in 2018, rendered in SU 2018
SU 2018.JPG (489.72 KiB) Viewed 9 times
Any help would do..

Fergos

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