I get all of that Michael, except the part about using the relation between magnitude of the position vector of the cone around the sphere and its scale...can you go into a bit more detail on what that means?
Thank you!! =) On May 24, 9:55 am, Michael Iv <[email protected]> wrote: > Make the torus pick in its local space to look forward , then make it > lookAt() = center of the sphere .Then use relation between magnitude of the > position vector of the cone around the sphere and it's scale . I don't think > there is much trig here . May be I did not get you right > > > > > > On Mon, May 24, 2010 at 7:45 PM, dyc <[email protected]> wrote: > > Hey guys, > > > So I have this sphere sitting at 0,0,0 in my View. I want to allow a > > user to click anywhere on the sphere, and have a Torus appear where > > they clicked, and as they drag, it would get bigger or smaller > > depending on how far from the initial click they moved their mouse. > > > I have this part all figured out and its working perfectly...however, > > I need the torus to "hug" the sphere as it get bigger or smaller, > > literally moving closer to the center of the sphere as it gets bigger, > > or further away as it gets smaller, so it seems that the torus is a > > ring around the sphere at different places as you drag. For this to > > happen, the torus will need to rotate on its axis' to keep "pointing" > > directly at the center of the sphere. > > > This is way over my head, and my boss really needs this to get > > finished this week, and there are tons of other parts to getting this > > done. I could sure use some ideas. > > > Thanks SO much for all your help in advance! You guys always save my > > butt! > > > `Scott > > > p.s. im trying to place this torus like this so I can use the data > > from it in some crazy trig functionality I need to do to get the > > proper distances between thing & the right FOV & angle from the > > distances & angles that are there... > > -- > Michael Ivanov ,Programmer > Neurotech Solutions Ltd. > Flex|Air > |3D|Unity|www.neurotechresearch.comhttp://blog.alladvanced.nethttp://www.meetup.com/GO3D-Games-Opensource-3D/ > Tel:054-4962254 > [email protected] > [email protected]
