I found a similar post registering camera.screen projection problem: http://groups.google.com/group/away3d-dev/browse_thread/thread/2d331c736767ee65
Fabrice or someone else can help here ? Is there a kind of bug with getting screen 2d coords of vertices ? On Wed, Apr 14, 2010 at 9:19 PM, Omar Fouad <[email protected]> wrote: > I'm also trying to set the x of the spot sprite outside the view to > camera.screen(3dObjectInsideTheView).x, but they are not overlaying. > I mean the sprite is not overlaying on the object that is inside the > view3D. > Shouldn't camera.screen(object3D).x return the coinciding coordinate out of > the view3D (translate into screen coords)? > > On Wed, Apr 14, 2010 at 7:54 PM, Fabrice3D <[email protected]> wrote: > >> Perhaps... Glad we could bring you to ideas. >> >> Sent from an iPhone without Flash >> >> On Apr 14, 2010, at 19:08, Omar Fouad <[email protected]> wrote: >> >> Fabrice's talk is too complicated :) >> >> On Wed, Apr 14, 2010 at 7:00 PM, Michael Iv < <[email protected]> >> [email protected]> wrote: >> >>> If you need your hot spots to be in 3d space and relative to camera >>> facing direction this will not help . You should try the approach of Fabrice >>> . >>> >>> >>> On Wed, Apr 14, 2010 at 7:54 PM, Omar Fouad < <http://omarfouad.net> >>> omarfouad.net@ <http://gmail.com>gmail.com> wrote: >>> >>>> Nope! I've tried lots of things. I've been reading somewhere about >>>> camera.screen(object3D). It should return the screen 2D coordinates that >>>> are >>>> relative an object3D inside the view. But I don't know what is missing >>>> here. >>>> I give the screen x and y to it and it moves strangely across the screen. >>>> >>>> >>>> >>>> On Wed, Apr 14, 2010 at 4:42 PM, Omar Fouad < <http://omarfouad.net> >>>> omarfouad.net@ <http://gmail.com>gmail.com> wrote: >>>> >>>>> I was thinking of doing something else. In Away3D there a class called >>>>> MovieClipSprite, which is a "plane" that always faces the camera and >>>>> takes a >>>>> DisplayObject as its material. I was thinking of adding those >>>>> movieClipSprites inside an ObjectContainer3D that also contains the >>>>> cylinder. Those movieClipSprites are the spots I need and they would be on >>>>> top of the cylinder. This way when moving the camera, I should see both >>>>> cylinder and spots rotating in the same positions. The beauty of the >>>>> MovieClipSprite is that it doesn't transform by any means. >>>>> I'll try and keep you updated. >>>>> >>>>> Cordially. >>>>> >>>>> >>>>> On Wed, Apr 14, 2010 at 4:27 PM, Michael Iv < <[email protected]> >>>>> [email protected]> wrote: >>>>> >>>>>> I am still not sure what Omar tries to do . Is that about hotspots >>>>>> deifined directly on constant material areas or these are the hot spots >>>>>> that >>>>>> are always relative to the camera direction? If it is the first then >>>>>> Fabrice's second solution looks really the best approach . >>>>>> >>>>>> >>>>>> On Wed, Apr 14, 2010 at 5:20 PM, Fabrice3D < <[email protected]> >>>>>> [email protected]> wrote: >>>>>> >>>>>>> Using the Ray class you would indeed with the projection of two rays >>>>>>> get your uv's coordinates and via barycentric formula from the faces >>>>>>> hitted >>>>>>> extract a rectangle. The defined rect could then be compared with your >>>>>>> mouse3devent... the hard way. >>>>>>> >>>>>>> Simplest way would certainly be to define 2d rect on map. the >>>>>>> mouseEvent3D returns you the uv's, define a Point from these x,y >>>>>>> extracted >>>>>>> from the uv's and a simple PointInRect would tell you if you have a hit. >>>>>>> >>>>>>> Fabrice >>>>>>> >>>>>>> >>>>>>> On Apr 14, 2010, at 2:55 PM, Omar Fouad wrote: >>>>>>> >>>>>>> Well thanks! This approach is what I've mentioned in the post. >>>>>>> However the dilemma is how to move the spots, according the rotation of >>>>>>> the >>>>>>> camera. I don't need the spots to rotate around the x or the y axes, >>>>>>> the can >>>>>>> be flat, but on the same specific place on the cylinder's material. >>>>>>> BTW thanks for your answers! >>>>>>> >>>>>>> On Wed, Apr 14, 2010 at 2:49 PM, Michael Iv <<[email protected]> >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> Basically it can be made easier: I would create the hot spots as >>>>>>>> billboards like DirSprite3D and make their alpha to zero . Than I >>>>>>>> would >>>>>>>> wrap them with ObjectContainer ,then you can read the rotation angle >>>>>>>> of your >>>>>>>> camera , or if you rotate the cylinder instead then read its rotation >>>>>>>> . And >>>>>>>> after that use that value for angular displacement , I mean move your >>>>>>>> container on the spherical path (basic trigonometry) according to >>>>>>>> that >>>>>>>> rotation . I could write it here but I am at work now , sorry . >>>>>>>> may at the weekend I ll post this case in my >>>>>>>> blog.(<http://blog.alladvanced.net/> >>>>>>>> http://blog.alladvanced.net) >>>>>>>> >>>>>>>> >>>>>>>> On Wed, Apr 14, 2010 at 3:39 PM, Omar Fouad <<http://omarfouad.net/> >>>>>>>> omarfouad.net@ <http://gmail.com/>gmail.com> wrote: >>>>>>>> >>>>>>>>> No :) I missed yours >>>>>>>>> >>>>>>>>> On Wed, Apr 14, 2010 at 2:23 PM, Michael Iv <<[email protected]> >>>>>>>>> [email protected]> wrote: >>>>>>>>> >>>>>>>>>> What? I missed your point or you missed mine? >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On Wed, Apr 14, 2010 at 3:16 PM, Omar Fouad <<http://omarfouad.net/> >>>>>>>>>> omarfouad.net@ <http://gmail.com/>gmail.com> wrote: >>>>>>>>>> >>>>>>>>>>> huh? >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> On Wed, Apr 14, 2010 at 2:12 PM, Michael Iv <<[email protected]> >>>>>>>>>>> [email protected]> wrote: >>>>>>>>>>> >>>>>>>>>>>> If you want to set the hot spots that will be located always >>>>>>>>>>>> relative to the camera direction you can set directional sprites >>>>>>>>>>>> facing the >>>>>>>>>>>> camera with zer0 alpha.And copying camera transformation matrix and >>>>>>>>>>>> direction (can cast a Ray) you can figure out where to move these >>>>>>>>>>>> objects >>>>>>>>>>>> >>>>>>>>>>>> On Wed, Apr 14, 2010 at 2:56 PM, Omar Fouad >>>>>>>>>>>> <<http://omarfouad.net/> >>>>>>>>>>>> omarfouad.net@ <http://gmail.com/>gmail.com> wrote: >>>>>>>>>>>> >>>>>>>>>>>>> Hi, >>>>>>>>>>>>> >>>>>>>>>>>>> I have a cylinder that has applied to it a BitmapMaterial, >>>>>>>>>>>>> which is the panorama image (landscape 360). I've zoomed the >>>>>>>>>>>>> camera properly >>>>>>>>>>>>> so it looks great while panning left, right, up, and down. >>>>>>>>>>>>> What I really need to do now is to set a hot-spot on that view. >>>>>>>>>>>>> in this example (link: >>>>>>>>>>>>> <http://www.egypt.travel/?flashinstalled=2> >>>>>>>>>>>>> http://www.egypt.travel/?flashinstalled=2 ) i believe the >>>>>>>>>>>>> spots are not movieclip materials placed on top of the bitmap >>>>>>>>>>>>> material (or >>>>>>>>>>>>> their rotationY angle would change with the camera rotation). I >>>>>>>>>>>>> believe, >>>>>>>>>>>>> that is a layer placed on the stage on top of the View3D, that >>>>>>>>>>>>> moves >>>>>>>>>>>>> according the camera panAngle. >>>>>>>>>>>>> But how can I give the spots x and y props and then, update >>>>>>>>>>>>> them while panning the camera? >>>>>>>>>>>>> >>>>>>>>>>>>> Thanks in advance. >>>>>>>>>>>>> >>>>>>>>>>>>> Cordially. >>>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> -- >>>>>>>>>>>> Michael Ivanov ,Programmer >>>>>>>>>>>> Neurotech Solutions Ltd. >>>>>>>>>>>> Flex|Air |3D|Unity| >>>>>>>>>>>> <http://www.neurotechresearch.com/>www.neurotechresearch.com >>>>>>>>>>>> Tel:054-4962254 >>>>>>>>>>>> <[email protected]>[email protected] >>>>>>>>>>>> <[email protected]>[email protected] >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Michael Ivanov ,Programmer >>>>>>>>>> Neurotech Solutions Ltd. >>>>>>>>>> Flex|Air |3D|Unity| >>>>>>>>>> <http://www.neurotechresearch.com/>www.neurotechresearch.com >>>>>>>>>> Tel:054-4962254 >>>>>>>>>> <[email protected]>[email protected] >>>>>>>>>> <[email protected]>[email protected] >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Michael Ivanov ,Programmer >>>>>>>> Neurotech Solutions Ltd. >>>>>>>> Flex|Air |3D|Unity| >>>>>>>> <http://www.neurotechresearch.com/>www.neurotechresearch.com >>>>>>>> Tel:054-4962254 >>>>>>>> <[email protected]>[email protected] >>>>>>>> <[email protected]>[email protected] >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Michael Ivanov ,Programmer >>>>>> Neurotech Solutions Ltd. >>>>>> Flex|Air |3D|Unity| >>>>>> <http://www.neurotechresearch.com>www.neurotechresearch.com >>>>>> Tel:054-4962254 >>>>>> <[email protected]>[email protected] >>>>>> <[email protected]>[email protected] >>>>>> >>>>>> >>>>> >>>> >>> >>> >>> -- >>> Michael Ivanov ,Programmer >>> Neurotech Solutions Ltd. >>> Flex|Air |3D|Unity| >>> <http://www.neurotechresearch.com>www.neurotechresearch.com >>> Tel:054-4962254 >>> <[email protected]>[email protected] >>> <[email protected]>[email protected] >>> >>> >> > -- Michael Ivanov ,Programmer Neurotech Solutions Ltd. Flex|Air |3D|Unity| www.neurotechresearch.com Tel:054-4962254 [email protected] [email protected] -- To unsubscribe, reply using "remove me" as the subject.
