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Creating "police car lights" effect

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Creating "police car lights" effect
by lyle Pascoe on May 20, 2008 at 3:19:21 pm

Hi,

i am looking for an old tutorial on creating the light effect that mimics police car lights flashing against a wall.

or if you have an easy way of doing this I would greatly appreciate it.

regards

Lyle

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Re: Creating "police car lights" effect
by Dave LaRonde on May 20, 2008 at 3:56:44 pm

Piece of cake. Work in 3D.


• Create a cube using square, square-pixel black solids top & bottom, and black with red circles on the sides. Use a precomp to make the sides. Set the sides' layer property to Transmits Light, or whatever they call it. Put a null object at the very center of the cube, and parent all the sides of the cube to it.
• Move the null so that the cube surrounds a light... not a spotlight, but the one that shines in all directions.
• Rotate the null.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA

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Re: Creating "police car lights" effect
by John Cuevas on May 20, 2008 at 8:19:47 pm

I'm guessing Dave that you are using the box as a "lighting projector". If so, the all the boxes along with the lighting transmission set to 100% also need the "cast shawdows" property turned to "only", so that the red is projected.

Johnny Cuevas, Editor
www.ckandco.net

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Re: Creating "police car lights" effect
by lyle Pascoe on May 21, 2008 at 8:01:51 am

Well if you say it like that it sounds too easy!

i should have thought of that.

Thanks

:)



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Re: Creating "police car lights" effect
by lyle Pascoe on May 21, 2008 at 9:24:23 am

Ok I made the light box and set the rig up as per your instructions but the "light box" is not casting light onto the background layer.

I am using a point light. If i adjust the layers to cast shadows only that layer (with the red dot) disappears.

And I thought this was going to be easy...



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Re: Creating "police car lights" effect
by lyle Pascoe on May 21, 2008 at 11:00:15 am

Ok, My bad.

I forgot to switch on the background layers 3D on.

It works great.

Thanks




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