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R
Raymond Herrera
Known Participant
February 15, 2020
Answered

Forensic Case: How to generate a virtual X-ray with Photoshop?

  • February 15, 2020
  • 2 replies
  • 1501 views

Notice the image below:

 

 

It is a virtual cranium with injuries (done in Autodesk 3ds Max) and I would like to to use Photoshop in order to generate X-rays as similar as possible to the ones from the real patient's autopsy:

 

 


TIA,

 

-Ramon F Herrera


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This topic has been closed for replies.
Correct answer davescm

Import it to Photoshop.

Unless the density has been mapped you will not get a true X-Ray. All you will get is a simulated effect based on making the model translucent and assigning a density to it.

For the materials set Glow 0 , Metallic 0%, Roughness 0% Opacity 100% Refraction 1.0 , Density (You will need to play with this) , Translucence 100%

Set the infinite light to shine from behind the object (at very high intensity ) and the camera to orthographic.

Then put an invert adjustment layer above the 3D layer.

 

Dave

 

 

2 replies

davescm
Community Expert
davescmCommunity ExpertCorrect answer
Community Expert
February 15, 2020

Import it to Photoshop.

Unless the density has been mapped you will not get a true X-Ray. All you will get is a simulated effect based on making the model translucent and assigning a density to it.

For the materials set Glow 0 , Metallic 0%, Roughness 0% Opacity 100% Refraction 1.0 , Density (You will need to play with this) , Translucence 100%

Set the infinite light to shine from behind the object (at very high intensity ) and the camera to orthographic.

Then put an invert adjustment layer above the 3D layer.

 

Dave

 

 

    R
    Raymond HerreraAuthor
    Known Participant
    February 15, 2020

    [davescm:] "For the materials set Glow 0 , Metallic 0%, Roughness 0% Opacity 100% Refraction 1.0 , Density (You will need to play with this) , Translucence 100%"

     

    To be sure, are those Photoshop settings? The reason I ask is because I am somewhat familiar with 3ds Max (and related apps: Maya, Cinema 4D, Blender, etc.). They have parameters like those above: metallic, etc.

     

    Thanks!

     

    -Ramon F. Herrera

     

    [Personal information is not allowed and was removed by moderator.]

     

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    davescm
    Community Expert
    davescmCommunity Expert
    Community Expert
    February 15, 2020

    Yes they are settings in the Photoshop 3D properties

    Dave

    R
    Raymond HerreraAuthor
    Known Participant
    February 15, 2020

    Let's elaborate. I am convinced that taking the screenshot from 3ds Max as seen above directly to Photoshop is a poor workflow. The problem is that the frontal osseous material completely obscures the posterior one.

     

    I don't know about the internals of 3ds Max transparency implementation but I hope (Autodesk folks: consider this a feature request) that two layers of bone would be denser than a single layer.

     

    The current virtual cranium has uniform bone thickness. Future versions will be more realistic, incorporating varying thickness:

    (a) Provided by mother nature

    (b) Provided by the projectile.

     

    TIA,

     

    -Ramon F. Herrera

     

    [Personal information is not allowed and was removed by moderator.]

     

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