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adding shadow to green screen footage issue??

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Sean Morton
adding shadow to green screen footage issue??
on Feb 15, 2012 at 6:39:19 pm

Hi Community

I am working on a 3d enviornment and trying to cast shadow from keyed image onto back wall. Added light and changed material options etc.

When i am looking at 2 views, On the left view which is custom view 1 the shadow shows up perfectly. On the right view which is my active camera the shadow doesn't show up at all.

What am I doing wrong??? Obviously, i need that shadow on the active camera.

Sincerely
Sean


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Tudor "Ted" Jelescu
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 6:44:28 pm

Are you using OpenGl?

Tudor "Ted" Jelescu
Senior VFX Artist


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Sean Morton
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 6:54:56 pm

Yes It is on.. Should it not be on??

And why is it showing up on one side and not the other??

Sean


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Sean Morton
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 6:56:31 pm

Just turned it off... didn't do anything.

Sean


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Tudor "Ted" Jelescu
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 7:03:54 pm

OpenGl should be off - Adobe recommends that as well.
Do a collect and post the project for us to take a look and see if we figure it out.

Tudor "Ted" Jelescu
Senior VFX Artist


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Sean Morton
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 7:32:32 pm

Hi again Ted

I can do that and collect, however its 355 MB. A little high to upload. So when I toggle cast shadows on the keyed image, it works fine on the Custom View view. However, on the active camera view it does nothing. In addition, I am casting a shadow on a Boris continuum 3d text and it works totally fine.(in the active camera view) I am completely stumped.

If i delete the solid layer (continuum 3d text) the shadow casting in the active camera of the keyed image still won't work.

I am keying the image with Primatte Keyer.

Anybody??
Sean


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Tudor "Ted" Jelescu
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 7:35:34 pm

Do you have the keyed footage precomped and that precomp as a 3d layer?

Tudor "Ted" Jelescu
Senior VFX Artist


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Sean Morton
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 7:43:35 pm

Yup

Sean

you see, i could understand it not working at all and having a
mistake somewhere, but why it would work in Custom View and not
Active Camera is baffling to me.


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Tudor "Ted" Jelescu
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 7:52:18 pm

Duplicate your project, replace the footage with stills and see if the problem remains. If so, you can do a collect and post that project up.

Tudor "Ted" Jelescu
Senior VFX Artist


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Sean Morton
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 9:30:01 pm

So I rendered frame out to photoshop file. imported
in and made it a 3D layer. It worked as it should.

Now what??

I am going to render out as an animation codec with alpha to experiment.
I can't imagine this being a codec issue!

the original footage is h.264 file out of a canon5d.

any other guesses as to what is happening?

Sean


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Dave LaRonde
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 9:38:57 pm

[Sean Morton] "I can't imagine this being a codec issue!"

If you don't have AE 10 or higher, you bet it could be!




[Sean Morton] "any other guesses as to what is happening?"

If your custom view and active camera have two different angles, the active camera may not be able to see the shadow. The fix: move the light.

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


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Sean Morton
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 9:47:53 pm

Boys I am going mental here!!!

I am using CS5.5. Just tried the same thing with .mov with animation
with alpha. Exact same issue. Moving light did nothing to the keyed
image. It did move the shadow on the solid layer that is using continuum.

As before, the custom view is correct, the active camera is not showing
shadow from the keyed video image.

I am calling Adobe for all the good it will probably do.

aaarrgghh!!!

I am running a 2011 mac book pro with 16Gb of Ram.

Am I missing a setting somewhere about the active camera??

Sean


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Dave LaRonde
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 9:54:47 pm

A solid layer using continuum... the background, perhaps? What if you precomp it? If it's not the background, is it 2D, which royally screws things up? got any other kinds of layers in there, like shap layers?

Walter Soyka went through a whole litany that can mess up 3D just yesterday in a thread. I'd look for it.

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


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Sean Morton
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 10:07:50 pm

Okay figured out the problem.. Still need advice though! I started from scratch and my layer stack is as follows.

Light1
Camera1
Video- keyed image
adjustment layer - fast blur added - and keyframed to blur more as she moved closer to camera
Solid - 3d text through continuum
Background image.

So when i deleted the adjustment layer. the shadow then showed up
on both views.

So why didn't it work and how do i then do blur out the background
and add the shadow to it??


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Dave LaRonde
Re: adding shadow to green screen footage issue??
on Feb 15, 2012 at 10:41:49 pm

Don't use an adjustment layer. Use blur in individual layers. Welcome to the annoying world of 3D in AE.

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


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Tudor "Ted" Jelescu
Re: adding shadow to green screen footage issue??
on Feb 16, 2012 at 9:24:55 am

Yep, yhat will do it- an Adjustment layer is a 2d layer. If it is sandwiched in between 3d layers is messes up the way 3d space works in AE- basically you have 2 3d setups, one in front of the other, that will not interact. Dave's suggestion to use the blur directly on the layer and eliminate the Adjustment layer is the way to go.

Tudor "Ted" Jelescu
Senior VFX Artist


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