Yes it's working with the null centered. But what if I want the focus on some moving object that is not always in the center of the camera and coming near? It is like a follow focus rig.
2013/3/29 Ben Davis <[email protected]> > Makes sense, thanks Tim! > > That means that the info from the "Distance to Output Camera" is doing > exactly what you need Emilio, since when centered the ICETree info matches > perfectly. > > -- > Ben Davis > > www.moondog-animation.com > > +33 6 88 48 54 50 > > > On Fri, Mar 29, 2013 at 10:31 AM, Tim Leydecker <[email protected]> wrote: > >> 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<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, itæ„€ 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 >>> >>> -- >>> Ben Davis >>> >>> www.moondog-animation.com >>> >>> +33 6 88 48 54 50 >>> >>> >>> On Fri, Mar 29, 2013 at 9:20 AM, Emilio Hernandez <[email protected]> >>> 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. >>>> >>>> -- >>>> >>>> >>>> >>> > --
