film back?

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stenson
Licensed Customer
Posts: 53
Joined: Wed Jun 02, 2010 8:51 pm

What is the film back size in octane?

Feature request:
manually setting the film back.

cheers
Fredrik Stenson

http://www.stenson.tv
modo resource @
http://www.modo.stenson.tv
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[gk]
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Posts: 574
Joined: Sat Jan 16, 2010 12:48 pm
Location: Denmark

What do you need the filmback for?

It cant be for tracking, because when you track footage you dial in your cameras filmback in the tracker and get a cg camera generated automaticly and with that a camera fov and image plane in your host app you can port over to octane automaticly.
Amiga 1000 with 2mb memory card
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radiance
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Joined: Wed Oct 21, 2009 2:33 pm

what's a film back ?

Radiance
Win 7 x64 & ubuntu | 2x GTX480 | Quad 2.66GHz | 8GB
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stenson
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Posts: 53
Joined: Wed Jun 02, 2010 8:51 pm

radiance wrote:what's a film back ?

Radiance
The actual film in the camera, now days the sensor. The size of the media that's capturing the images.

@gk
as far as i know Octane uses the xfov. That's calculated:
xfov = 2*atan(0.5*filmWidth / focallength)
the more unusual fov is the yfov, maybe not that useful, but calculated:
yfov = 2*atan(0.5*filmHeight / focallength)
Fredrik Stenson

http://www.stenson.tv
modo resource @
http://www.modo.stenson.tv
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