If you have both the interocular and the convergence distance, then you can
set up your second camera as just a position & rotation offset to your main
camera. Create a new Camera node, connect your main Camera to it, and then
just work out the offsets in your new camera.
You'll need an offset in translate.x, and rotate.y. Translate.x should just
be your interocular distance. Rotate.y is the angle of the right triangle
defined by the two given sides (IO and convergence). You already have the
two sides of that triangle, so you can solve for "angle =
degrees(atan(IO/convergence))"
Make sure your new camera has the same projection parameters as your main
camera (link them if necessary). Also, a good way to check that your
expressions are working correctly is to link the "focal_point" of both
cameras to your convergence distance (meaning the crosshair handle in the 3D
view should then overlap for the 2 cameras)
Here's a quick example:
set cut_paste_input [stack 0]
version 6.1 v5
push $cut_paste_input
Camera2 {
translate {20 9 -53}
rotate {-17 -41 0}
focal_point {{Camera4.convergence}}
name Camera3
label "MAIN (left eye)"
selected true
xpos 647
ypos 468
}
set N74b5be0 [stack 0]
Camera2 {
translate {{interOcular} 0 0}
rotate {0 {degrees(atan(interOcular/convergence))} 0}
focal {{parent.Camera3.focal}}
haperture {{parent.Camera3.haperture}}
vaperture {{parent.Camera3.vaperture}}
near {{parent.Camera3.near}}
far {{parent.Camera3.far}}
win_translate {{parent.Camera3.win_translate}
{parent.Camera3.win_translate}}
win_scale {{parent.Camera3.win_scale} {parent.Camera3.win_scale}}
winroll {{parent.Camera3.winroll}}
focal_point {{convergence}}
name Camera4
label "RIGHT EYE"
selected true
xpos 812
ypos 468
addUserKnob {20 User}
addUserKnob {7 interOcular}
interOcular 1
addUserKnob {7 convergence}
convergence 28
}
push $N74b5be0
JoinViews {
inputs 2
name JoinViews2
selected true
xpos 722
ypos 621
viewassoc "lt\nrt"
}
Cheers,
Ivan
On Thu, Apr 28, 2011 at 8:53 AM, Oliver Armstrong wrote:
> Hi there.
>
> Does anyone know a way to generate the "other eye" camera in nuke. I have a
> shot camera and the interocular distance as well as the distance of the
> convergence plane.
>
> Thanks,
>
>
>
>
> --
> US: +1 (646) 229-5388
> UK: +44 7899 893 541
> Skype: oliverarmstrong
>
>
>
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