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Question

changing the depth information in Photoshop render file_

Forum|Forum|3 years ago
February 5, 2022
2 replies
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changing the depth information in Photoshop render file_ How do you apply the changes and what is the purpose of the Depth Map info in the Photoshop Dimension render file?

I understand the grayscale depth map controls I think the Depth of Field when the file is rendered, but how can I change it in the Photoshop file and reapply the new info? ty

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Ussnorway7605025

Brainiac

your image is a layer from Photoshop and back in the past you could edit it to re-rendor your image [in Photoshop] but Adobe has dropped 3D from Photoshop now so its use there is limited

Dimension allows maps for Opacity, Roughness, normals, Metallic & Glow [material only] so (without hacking} you can't reenter the map back into Dimension in order to re-rendor the file

I don't use or have Stagger installed

@Ares Hovhannesyan or @davescm may know of a workaround but can I ask why you want to edit this map i.e, what are you hoping to achieve?

p.s, @Colin Holgate does Sketchup have an option to read a depth map?

Ares Hovhannesyan

Community Expert

The value of the gray in Depth Map Layer in Ps file depend on 3d position of your object in perspective that mention the distance value between 3d object. If you will change their position you will be able to change Dept Map layer in rendered file in Ps

Ussnorway7605025

Brainiac

there are two types of depth infomation in a 3D scene and you are asking a bit about each so I think we need to clear things up:

depth information is normally call depth of field and that is a camera control that adds lens blur around a focus point... you can play with this in Dimension by moving the slider tool but be aware that blur has to rendored first before the effect is seen correct

example of depth of field

https://community.adobe.com/t5/dimension-discussions/depth-of-field/td-p/10438486

the other kind of depth information [and the one with gray scale] is called a depth map and is old school normal map that you only see in old copies of Photoshop... most moden software now uses normal maps and Dimension will read a depth map as a normal map if you insert it but the effect will be back to front because depth maps are older

how to use a depth map in Photoshop

M

markl78029787Author

Known Participant

Thanks for gettig back to me...

I want to know how I can utilize/modify the Depth Map Layer in a Adobe Dimension/Stager render file that is part of the Photoshop file from these programs.

How can I modify the grayscale values and then reassign them to the output on the main 'render' layer..thanks

davescm

Community Expert

Hi

You are misunderstanding the purpose of the depth map. It is not an input into the rendering process, it is an output (don't confuse it with a height map which gives surface height variations). Many 3D applications do not just output an RGB coloured render image. They also have the ability to render other render passes such as separating the metallic or roughness components, an ambient occlusion layer, a map of object masks, and of course a depth map.

It's purpose is for use in compositing and with filters to further change the look of the render. As an example it could be used with a lens blur filter to control the apparent depth of field. Another use would be to use it to control layers that introduce haze or colour changes with distance. So by outputting the depth map alongside the RGB layer you have an extra input into the compositing and finishing process

Dave

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