Hey Ben,
the farther offset the null is off center to the center of the camera view
the more "off" the DOF would be because the DOF effect is sets in respect
to the viewplane of the camera and it would take some Pythagorean theorem
(http://en.wikipedia.org/wiki/Hypotenuse) to get the desired major cathetus,
which is the Distance between Camera Center and a "Plane" from the shorter
cathetus.
To avoid that, it´s easier to constraint the camera to "look at" the null,
then the hypothenuse "snaps back into" the longer cathetus and there is
no offset anymore to worry about.
Cheers,
tim
On 29.03.2013 10:06, Ben Davis wrote:
It looks like "Distance to Output Camera" from the viewport options is
spitting out the info from a plane in front of the camera based on the
distance from the null if it were in the center of your camera's view. If
your null is centered, the values are the same from the ICETree and the
viewport info.
The ICE info from the "Get Distance Between" is exactly the distance from
center to center (global.kine to global.kine). I don't see a problem with
using the info from ICE to feed into your DOF, you're probably going to get
a more precise focus placement (I'll accept being refuted by the
photographers out there :)
Hope that helps!
Ben
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Ben Davis
www.moondog-animation.com
+33 6 88 48 54 50
On Fri, Mar 29, 2013 at 9:20 AM, Emilio Hernandez <emi...@e-roja.com> wrote:
Hello I am trying to rig the camera DOF so I can attach the distance to a
null. I am the ICE distance between node. But when I turn on the distance
to output camera from the viewer, it gives me a different result.
So the Distance to output camera from the viewport options is different
than the Distance between node in the ICE tree using the kine.global.pos
from the camera and the null.
I will appreciate any help on this issue.
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