How to simulate an ultrasound?

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Old 12 December 2012   #1
Smile How to simulate an ultrasound?

I need the realistic appearance of an ultrasound applied to non medical things like landscapes, and vehicles. The fan shape is easy enough but the strange texture is puzzling. Any ideas on how to use Max and/or V-Ray to turn an image into a sonogram?

This is the look I'm going for: http://www.google.com/search?hl=en&...bDYyiqQGxjYCYDA

Last edited by Dangertaz : 12 December 2012 at 11:37 AM.
 
Old 12 December 2012   #2
Hi

Link doesn´t work.
I would try fiddling with the falloff map though...
 
Old 12 December 2012   #3
 
Old 12 December 2012   #4
1) Get some basic shape and movement from 3ds max render. Probably falloff shader or even cell shader.

2) Get the look in comp program(AfterEfffet, Fusion, Nuke). Make an animate noise image and stretch it and warp it to simulate ultra sound noise/grain.
 
Old 01 January 2013   #5
I did one a few months ago, it's was very hard to do! This one in 10% 3d and 90% post in AEF:

http://www.jdbgraphics.nl/portfolio-item/fffff
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Last edited by jonadb : 01 January 2013 at 12:38 PM.
 
Old 01 January 2013   #6
@jonadb

Thats looks very realistic to me. Great work!


Maybe you could animate an electron microscope rendering setup
based from one of these tutorials:-

http://www.xenomorphic.co.uk/doc_microscopic_hair.html
http://www.3d-palace.com/xenomorphi...oc_electron.htm

Just an idea.

Happy new year everyone!
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Old 01 January 2013   #7
Thx!

One part of the trick is that an ultrasound only shows a 'slice' at a certain depth. Slicing a rigged 3d model didn't work to well so I solved it by using a gradient ramp texture on the opacity slot of a standard material.

Then I used a script controller to link a planar UVW gizmo to a camera-target position and another script controller to orientate it perpendicular to the cam. (renaming the camera in attached scene will break this btw)

So by moving the camera and changing the camera target position you can adjust the visible 'slice', this is quite like how a real ultrasounds works.

Scrub the timeline, or move the camera target in attached scene to see it in action.
Attached Files
File Type: zip ultra.zip (45.4 KB, 16 views)
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Old 02 February 2013   #8
Exclamation

I'm really interested in this file but Max2012 won't open it

Can you please reupload? I'm not sure what's wrong.
 
Old 02 February 2013   #9
A 2012 version attached..
Attached Files
File Type: zip ultra_2012.zip (41.5 KB, 17 views)
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Old 02 February 2013   #10
That is pretty sick Jonathan! Congrats.
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Old 02 February 2013   #11
Wow

That's amazing!!

Could you please talk about what you did in post? I only have PShop CS4, will it be possible to get the same kind of look? I only need stills for my art project.


Thanks again

Last edited by Dangertaz : 02 February 2013 at 01:32 PM.
 
Old 02 February 2013   #12
Quote:
Originally Posted by Dangertaz
That's amazing!!
Could you please talk about what you did in post? I only have PShop CS4, will it be possible to get the same kind of look? I only need stills for my art project.
Thanks again


This is not the 'outsource my homework' forum Plenty of reference material on youtube, but basically it's bended noise with a radiant shadow effect.
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Old 02 February 2013   #13
Thumbs up

Fair enough, thanks again
 
Old 02 February 2013   #14
Quote:
Originally Posted by jonadb
One part of the trick is that an ultrasound only shows a 'slice' at a certain depth. Slicing a rigged 3d model didn't work to well so I solved it by using a gradient ramp texture on the opacity slot of a standard material.

Just out of curiosity: why not use the clipping settings in the camera?
 
Old 02 February 2013   #15
Quote:
Originally Posted by Holzi
Just out of curiosity: why not use the clipping settings in the camera?


because I didn't think of that That is pretty smart actually but it will give harsh edges, using a gradient ramp you can make them soft and have a bit more control.
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