[Papervision3D] camera rotation

[dizy]

Thanks Tim for taking your time to reply to me.

I understand the difference between the two cameras. But I guess Im just
used to the idea that if you target the camera at some object.. you can
still roll around that target line while continuing to point at the target.
Which is the way it works in after effects at least :/

So heres an example...

			var container : Sprite = new Sprite();
			container.x = stage.stageWidth * 0.5;
			container.y = stage.stageHeight * 0.5;
			addChild(container);
			
			var scene:MovieScene3D = new MovieScene3D(container);
					
			var p : Plane = new Plane(null, 240, 240, 2, 2);
			p.x = 500;
			p.y = 0;
			p.z = 0;
			p.rotationZ = 45;
			scene.addChild(p);
			
			/* I guess I can't use Camera3D 
			var camera:Camera3D = new Camera3D();			
			camera.x = 0;
			camera.y = 0;
			camera.z = -500;
			camera.target.x = p.x;
			camera.target.y = p.y;
			camera.target.z = p.z;
			camera.target.rotationZ = p.rotationZ; // doesn't work
			camera.rotationZ = p.rotationZ; // doesn't work
			camera.roll(p.rotationZ); // doesn't work
			*/

			var camera:FreeCamera3D = new FreeCamera3D();			
			camera.x = 0;
			camera.y = 0;
			camera.z = -500;
			camera.lookAt(p);
			camera.roll(p.rotationZ); //OK, works the way expected
				
			scene.renderCamera(camera);


Ok.... so it seems I can't use Camera3D to do what I want.... so then the
question is... how do I go about animating the FreeCamera "lookAt"?

Or perhaps theres a better way to approach this problem all together?

Any thoughts?

TIA

Danny




Tim Knip-2 wrote:
> 
> Hi Dizy,
> 
> Here's the list's archive:
> http://osflash.org/pipermail/papervision3d_osflash.org/
> 
> About the camera's:
> Camera3D is camera with a 'target', whilst FreeCamera3D is, well, a
> free camera :-)
> 
> You position your camera anywhere in space by:
> camera.x = ...
> camera.y = ...
> camera.z = ...
> 
> Call camera.lookAt( someObject ) to make the camera look somewhere.
> Or you can do 'by hand' using camera.yaw / camera.pitch.
> 
> Also note that in Papervision3D the Y-axis is 'up'.
> 
> So, say you have an object which lies in the XZ-plane and you would
> want to see the 'right side' of the object, you would do something
> like this:
> 
> camera.x = 1000;
> camera.y = 0;
> camera.z = 0;
> camera.lookAt( myObj );
> 
> Tim
> 
> 
> Tim
> 
> 2007/11/26, dizy <dizy at dizy.cc>:
>> First let me say that this is my first post, and I'm not sure if theres
>> anyway to search through previous posts for possible answers. So if there
>> is
>> a way, please let me know so I can search before asking.
>>
>> I'm new to papervision.. and I've been checking out the examples.  So
>> after
>> playing around with the PaperCloud example I have a question...
>>
>> Is there anyway to tilt Camera3D?   Something like rotationZ only seems
>> to
>> be working for me with  FreeCamera3D
>>
>> Basically I was trying to get the current example's camera to not only
>> goto
>> and target the clicked object... but to also match the object's rotation
>> so
>> that the  artwork is viewed right side up and straight.
>>
>> Any help is appreciated
>>
>> TIA
>>
>> Danny
>>
>>
>>
>>
>> _______________________________________________
>> Papervision3D mailing list
>> Papervision3D at osflash.org
>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>
>>
> 
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> 

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