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Rendering shadows without a surface

New Here ,
Sep 15, 2019 Sep 15, 2019

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Is there a way to render a shadow without the surface the shadow falls onto? The result I want is a transparent PNG of a rendered object with a shadow cast onto an invisible plane so that I can place it, in Photoshop, over any color and it looks great.

If I turn the ground plane off, no shadow gets rendered.

Thanks!

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correct answers 1 Correct answer

Explorer , Sep 15, 2019 Sep 15, 2019

Yes, but do not turn the groundplane off. Just use a color background. Render to PSD. When in PS the groundplane is its own colorfill layer wich you can remove/turn off and there is your render with shadows and/or reflection. 

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Explorer ,
Sep 15, 2019 Sep 15, 2019

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Yes, but do not turn the groundplane off. Just use a color background. Render to PSD. When in PS the groundplane is its own colorfill layer wich you can remove/turn off and there is your render with shadows and/or reflection. 

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New Here ,
Sep 16, 2019 Sep 16, 2019

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That works perfectly. Thanks!

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New Here ,
Dec 05, 2020 Dec 05, 2020

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What if it's not the environment / ground plane you wish to remove / render on a separate layer but an object / plane. If you set an object a base color that will be redered in the image. And if you make a fully transparent png image and set that as a base color that will render as white. I wish to use this technique for interior design / photo mapping and make planes to cast a shadow to but still retain the original background image. Could this be done?

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New Here ,
Mar 10, 2021 Mar 10, 2021

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This.

The ground plane trick works perfectly - when it's the ground you want to get rid of. But I have the same need, that is placing objects against a wall, instead of sitting on the ground (or a flat surface like a table).

It's so close to providing this feature...something as simple as changing the orientation of the ground plane would go a long way, so that it's a wall instead of the ground.

I suppose you could rotate your image 90 degrees so that the "wall" in the image is the floor in the app...and then just work sideways. But a control to flip the surface in the app would be so much easier and more logical.

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LEGEND ,
Mar 10, 2021 Mar 10, 2021

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you can vote for it https://feedback.adobedimension.com/ but yes just turning your camera 90O is what I do

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