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Author Topic: Replacing background with a real image  (Read 8982 times)

3D-Vizual

    Reputation: 1
Replacing background with a real image
« on: January 16, 2012, 02:21:03 pm »
January 16, 2012, 02:21:03 pm
Is it possible to change the background image with a real photo. (Save a file with an alpha channel).?

Re: Replacing background with a real image
« Reply #1 on: January 16, 2012, 02:33:33 pm »
January 16, 2012, 02:33:33 pm
Do you mean a custom background/sky in Lumion? If so, the answer is yes (background images with a 1-bit alpha channel also work):
http://lumion3d.com/forum/index.php?topic=2091.0

Or do you mean saving images in Lumion with an alpha channel, so that the sky could be cut out in 3rd party compositing software? If so, the anwer is no.
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3D-Vizual

    Reputation: 1
Re: Replacing background with a real image
« Reply #2 on: January 16, 2012, 02:37:47 pm »
January 16, 2012, 02:37:47 pm
Hi Morten

It was the last you wrote. But I can see that there is a workaround with a black background. But you don't get reflections in windows etc. by this method do you.?

Re: Replacing background with a real image
« Reply #3 on: January 17, 2012, 11:41:12 am »
January 17, 2012, 11:41:12 am
If you mean turning the sky black, so that you can cut this part out in your compositing software, reflective materials will reflect the black sky. And this will not look as good as when the sky is blue.
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