[Papervision3D] Peter Kapelyan: Moving camera in Ninja Demo

[laurent]

Thanks a lot,
I just moved for happy hour, I'll read, ...understand that tomorrow.!

cheers
L

Peter Kapelyan a écrit :
> It can be done many ways,
> I tried first with one onject (for a game), then with two.
> Obviously my case is specific because I needed it for a game.
> If all you need is to look at two objects smooth the code is simpler.
> If you need three objects - harder? etc..
> I can try to explian here - but if that is not good enough I'll need 
> to know more what you want to do or just do it for you :)
>  
> #1 need to add some null objects - nulls help control the camera 
> behind the scenes
>
> #2 If you just want to look at two (more) objects - first make sure 
> you lookAt something that is in the exact middle of them. For instance 
> (with two):
>    ZcenterZ.x=(NinjAX.x+NinjA.x)/2;
>    ZcenterZ.y=mainYVAR;//locks Y but can be like above...
>    ZcenterZ.z=(NinjAX.z+NinjA.z)/2;
>
> #3 Now you have to look at that object but from a 90 degree angle 
> (ALWAYS!!!) , and moveBackwards enough to see both with a NULL, then 
> finally tween the
yes my plane looks 90 degree twisted
> camera into that null.
> Other wise instead of the null looking at the center - you can use 
> camera if you don't want smoothing/tweened movment)...
>  
> #4 Use Tweener or a simple smooth function between the null your 
> camera...or in any fasion to create a smooth motion somthing easy? like=
>
> camera.x-=(camera.x-Zcamm.x)/9;//Zcamm is my null
> camera.y-=((camera.y-Zcamm.y)/9);
> camera.z-=(camera.z-Zcamm.z)/9;
>
> where 9 is how smooth it moves= 1 should stick to object or something 
> like 120 would take forever to get to the null :)
>
> Hope any of this makes sense....or helps!
> -pete
>
>  
>  
>  
>  
> On 7/1/07, *laurent* <laurent at logiquefloue.org 
> <mailto:laurent at logiquefloue.org>> wrote:
>
>
>     It can be more clear perhaps.
>     I looked in your panorama code, will get the movethecam() first. Then
>     it's the idea of always having some object in the view of the cam that
>     interest me.
>
>     thx
>     L
>
>
>     laurent a écrit :
>     > Hey Peter,
>     >
>     > I'm trying my first none tutorial scene in PV, that needs some
>     smooth
>     > camera movement.
>     > Zeh's bezier tweener lib sounds the tool to use as soon as
>     possible to
>     > master it.
>     > But perhaps there's a simple way to have one camera always
>     showing the
>     > scene as in your Ninja Demo, perhaps I can use the tween class
>     mixed
>     > with your code to have that camera movement.
>     >
>     > Can you make a piece of code available or the path to a tutorial
>     about
>     > this basic camera movement ?
>     >
>     > thank you!
>     > Laurent
>     >
>     >
>     >
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