Matching Camera Angle

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Old 01 January 2013   #1
Matching Camera Angle

Anyone know of good tutorials for camera matching in 3Ds Max? I have a photo from a helicopter of a street corridor; I need to match it for some modeling. Any guidance appreciated.

Thanks!
 
Old 01 January 2013   #2
Please don't post software-specific threads in General Discussions.
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leighvanderbyl.com
 
Old 01 January 2013   #3
Okidoke

Sorry...seemed a sufficient location.

Quote:
Originally Posted by leigh
Please don't post software-specific threads in General Discussions.
 
Old 01 January 2013   #4
MAX is not a good tool for this kind of tasks.
Photomodeler is the best (but you need to know some features of the camera).
The old school geometry is the best option to do it manually (in max or whatever)
If the corridor has a constant height floor, create a plane at ground level and the same width, longer than the original.
Use the photo as Image background (never crop the image) with the same image aspect (change render setting).
Then create a target camera with the same EQUIVALENT focal length (MAX use 35 MM camera lens).
Align it manually following these steps:
1- Set camera height (approx.)
2- Move camera target to align the perspective (check the viewport grid and the lines of the the street bounds).
a tip: always keep the center of the photo in the center of the viewport (this helps to add a mark in the center of the picture)
3- Move camera in XY plane.
Repeat these steps to refine the result
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Fernando Ferro
www.reconstruccionvirtual.com
 
Old 01 January 2013   #5
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