I finally figured it out. This tutorial helped me understand it.
http://blog.tartiflop.com/2008/08/understanding-zoom-focus-and-field-of-view-in-papervision3d/ I got the screen position of the pipe and then used the formula on that page to figure out how I need to rotate it. Thanks On Jun 23, 7:48 pm, Peter Kapelyan <[email protected]> wrote: > Have you tried the default zoom+focus, and can you see down the pipe then? > > Also, can you please put your test online so we can see, and possibly have > some sort of slider or textbox so you can change and see what happens when > you change the zoom/focus, if that's what you think is causing your > problems? > > Thanks > -Peter > > > > > > On Wed, Jun 23, 2010 at 6:45 PM, abowman <[email protected]> wrote: > > When I use lookAt for the pipe to point at other objects it rotates > > correctly. > > > The problem seems to be that I'm having an issue wrapping my brain > > around the focus and zoom properties of the camera. When I place a > > cube at the camera position, I can see the cube on the screen as > > though it were in front of the camera. I thought that if I placed a > > cube at the camera position that it would completely obstruct my > > view. How can I determine that position? The position that I would > > place the cube to block my view. I think if I knew that, I could use > > it to rotate the pipe to the correct angle. > > > On Jun 23, 5:10 pm, Peter Kapelyan <[email protected]> wrote: > > > Try putting it inside it's own ObjectContainer3D (like a group), and use > > > lookAt on the ObjectContainer3D instead. You will have to rotate the > > pipe > > > (not the ObjectContainer3D ) until it's correct. > > > > Once you figured the correct rotation for your pipe, you might be able to > > > applyRotations() to the pipe and then you won't need that > > ObjectContainer3D, > > > since applyRotations will lock in the correct rotation. > > > > Hope it makes sense > > > > -Pete > > > > On Wed, Jun 23, 2010 at 4:43 PM, abowman <[email protected]> wrote: > > > > Yeah, like a hollow cylinder. > > > > > On Jun 23, 4:38 pm, Peter Kapelyan <[email protected]> wrote: > > > > > pipes? > > > > > > On Wed, Jun 23, 2010 at 4:36 PM, abowman <[email protected]> wrote: > > > > > > How can I get a pipe to rotate so that I can look straight through > > it? > > > > > > > I tried using the pipes lookAt function with the camera position, > > but > > > > > > it doesn't work correctly unless it's toward the center of the > > > > > > screen. I get different results depending on what the camera's > > focus > > > > > > and zoom are set to. Is there a way I can get the correct position > > to > > > > > > pass to the pipes lookAt function or is there a better way to go > > about > > > > > > doing this? > > > > > > > Thanks > > > > > > -- > > > > > ___________________ > > > > > > Actionscript 3.0 Flash 3D Graphics Engine > > > > > > HTTP://AWAY3D.COM > > > > -- > > > ___________________ > > > > Actionscript 3.0 Flash 3D Graphics Engine > > > > HTTP://AWAY3D.COM > > -- > ___________________ > > Actionscript 3.0 Flash 3D Graphics Engine > > HTTP://AWAY3D.COM
