Hi Beatbrother...
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Originally Posted by
beatbrother_bw 
I'm from Belgium and I'm having my HT build at this moment.
My first idea was to go with a fiber star ceiling until I came onto this topic.
Now I think I would like to go with a combination of fiber and paint.
I think that it would be a nice combination. There will definitely be times when the fiber optic stars will be better than the painted mural... like if you want to see stars shining when there is light in the room.
And, there will be times, when the room is dark, that you would get a much more realistic night sky scene with the painted mural. So, why not go for both if you can?
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Originally Posted by
beatbrother_bw The thing is that I really would like to have a nightsky even when the lights are on (dimmed), because when you are going to watch a movie. As soon as you turn off the lights and you start the movie, you can't enjoy the stars right ?
Because you really can't see much of the stars when the lights are on and the stars are also dimmed when the projector is on.
So you can only enjoy it to the fullest when it's pitch black without playing a movie.
Yes and no. If you have a good sized soffit running around the room, including above the screen (that would block some of the light bouncing off of the screen and up to the ceiling)... and if the paint has a good charge to it... then you could actually see the painted stars for most of the movie. Now, it won't be all of the stars, like you would see if the room were totally black, but it would be more like you were at a drive-in movie and were to look up. You wold see stars, but not like you do when you go camping.
You could also turn on a black light while the movie is playing. My Home Theater paint is made to fluoresce under a black light.... just for home theater situations. But, then you have the black light on in the room and the room isn't dark. So, yes you could see the stars for the entire movie with the black lights on, but is it what you want to do. And, yes, with the right soffit design and a good charge for the paint... you could see a good amount of stars for the duration of the movie.
But, you were correct in stating that the best effect for the mural is to have a pitch black room. No questions.
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Originally Posted by
beatbrother_bw What about regular white paint or combination of regular white paint and glow in the dark paint ?
So when people are entering the room in a lighted environment, you can see the white painted stars and as you turn off the lights, you still can see some glow in the dark stars ?
That is possible. But I would probably suggest painting the constellation stars with the white paint first, then painting on top of that with the glow paint. You want the glow paint to not have any colored paint on top of it to block any light hitting it. After the constellation stars, I would suggest painting another hundred, or so, smaller stars and also painting smaller stars on those. Then, I would just paint the night sky as normal and if any of the smaller stars (painted only with glow paint) showed up, it would look like it was supposed to be there. Does that make sense?
If I were to paint a night sky mural first in paint and then with glow paint on top of the white paint... it would take me months because of how I paint. A typical home theater mural that I paint has probably 6,000 to 10,000 stars in it, and to do every star twice would not be worth it. But, by doing in the way I suggested above, you could probably come out with a nice dual mural.
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Originally Posted by
beatbrother_bw;22019756[I ]I'm having a rockwool acoustic tiled ceiling.
What about the ceiling construction frame ? Do you paint over it ?
I'm a bit afraid the frame will take away the effect.[/i]
No, don't paint the frames. Leave those alone. That will just add to the 3D effect of the mural. It will look like you are looking through small windows. It will look nice if you leave the frames, but you will have to be sure to add enough stars that the frames are visible as a silhouette. Trust me on that one. ;-)
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Originally Posted by
beatbrother_bw Any plans about going to europe ? Belgium maybe ? hehe ? 
Have passport, will travel. I go to Canada and have plans to go to Australia, the Cayman, Islands... and possibly Dubai. Why not Belgium? Send the plane ticket and I'm on my way. :-)
I can always try and help you do a DIY project or help you find a decent painter over there. But, you really need to be careful who you have do one of these murals. It's almost better to DIY than have some painters come in. Let me know how I can help.
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Have a new BBQ appetizer... Bacon Wrapped Jumbo Shrimp!! So good! 
