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Creating an Invisible Object to Cast Shadows

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Shaun KnappCreating an Invisible Object to Cast Shadows
by on Sep 28, 2010 at 2:15:59 am

Been searching to find something on this, nothing evident in my searches yet, so I'll pose it quickly here.

In After Effects, how can I create an object that will cast a shadow, yet won't render to the camera's view, only it's shadow will render?

Any quick direction someone can point me would be greatly appreciated.

Shaun K.

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"It is, in fact, nothing short of a miracle that the modern methods of instruction have not yet entirely strangled the holy curiosity of inquiry; for this delicate little plant, aside from stimulation, stands mainly in need of freedom; without this it goes to rack and ruin without fail. It is a very grave mistake to think that the engagement of seeing and searching can be promoted by means of coercion and a sense of duty." --- Albert Einstien


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Chris ButtacoliRe: Creating an Invisible Object to Cast Shadows
by on Sep 28, 2010 at 2:48:28 am

A 3d layer has under its material options a choice of "cast shadows" turned either on, off, or only. That last one is the one you are looking for.


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Shaun KnappRe: Creating an Invisible Object to Cast Shadows
by on Sep 28, 2010 at 2:52:41 am

So can I create 3D layers that are invisible to the camera that cast shadows?

How do I make them invisible, just simply turn opacity to zero? Will that then essentially disable the shadow from interacting or being made?

I know 3D layers can cast shadows, I'm just wanting to find out how to make objects invisible and still cast shadows. Any thoughts there?

Thanks.

Shaun K.

************************************

"It is, in fact, nothing short of a miracle that the modern methods of instruction have not yet entirely strangled the holy curiosity of inquiry; for this delicate little plant, aside from stimulation, stands mainly in need of freedom; without this it goes to rack and ruin without fail. It is a very grave mistake to think that the engagement of seeing and searching can be promoted by means of coercion and a sense of duty." --- Albert Einstien


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Tudor "Ted" JelescuRe: Creating an Invisible Object to Cast Shadows
by on Sep 28, 2010 at 6:48:39 am

You have the answer from Chris.
Turn on the "Only" option for cast shadows- that will turn off the layer and show only the shadow.

Tudor "Ted" Jelescu
Senior Compositor/VFX Artist


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Shaun KnappRe: Creating an Invisible Object to Cast Shadows
by on Sep 29, 2010 at 5:01:36 am

Oh, great you guys. Thanks to both of you. Sorry for not understanding Chris's reply.

Shaun K.

************************************

"It is, in fact, nothing short of a miracle that the modern methods of instruction have not yet entirely strangled the holy curiosity of inquiry; for this delicate little plant, aside from stimulation, stands mainly in need of freedom; without this it goes to rack and ruin without fail. It is a very grave mistake to think that the engagement of seeing and searching can be promoted by means of coercion and a sense of duty." --- Albert Einstien


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