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markl78029787
Known Participant
February 5, 2022
Question

changing the depth information in Photoshop render file_

  • February 5, 2022
  • 2 replies
  • 4454 views

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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2 replies

Ussnorway7605025
Ussnorway7605025
Legend
February 6, 2022

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
    Ares HovhannesyanCommunity Expert
    Community Expert
    February 6, 2022

    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
    Ussnorway7605025
    Legend
    February 5, 2022

    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
      February 6, 2022

      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
      davescmCommunity Expert
      Community Expert
      February 7, 2022

      I'm not the sharpest marble in a "happy meal" can you do a short screen capture video of you modifying the depth map and then reapplying it and showing the results of the original output layer?

      ty


      Once again - you don't modify the depth map and "reapply" it.

      The depth map is what it is. It is just a greyscale map representing how close each point in the image is to the camera. It only changes if you move objects around in the scene and re-render. That would output a new depth map because objects in the scene have moved.

       

      You can though use that output depth map, either as it is or with further tweaking, to control a filter or an adjustment layer applied to the rendered image. Effectively you use it as a mask to control effects or adjustments on the 2D rendered image, based on how far away from the camera each pixel in the scene represents. So you could turn far distant objects bluer (just as in nature), you could blur distant objects (to simulate depth of field). Do this using adjustment layers and smart objects so that the original rendered layer is not altered but the composite view of all the adjustments creates the image you want to see.

       

      If I get some time later I'll drop in some demo screenshots

       

      Dave

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