Away3D Forum Sprite3D position problem

sargon, Member
Posted: 18 October 2011 12:26 PM Total Posts: 51

Hi I have some problem with rendering 1000 x Sprites3D.

I have 1000 Sprites in container and when I change tilt/pan angle of my camera which is HovecCamera3D, sprites “change” their position.
When I change tiltangle of camera sprites go up/down and goes back to their position in the view.
Others objects that are in the same container behavior corectly, it doesn’t depend how many Sprites I have.

Any ideas ?

kornwaretm, Newbie
Posted: 18 October 2011 01:58 PM Total Posts: 21 [ # 1 ]

please check where your camera looking at. you have to call lookAt after you move your camera

sargon, Member
Posted: 18 October 2011 03:01 PM Total Posts: 51 [ # 2 ]

but my camera is always looking at (0,0,0) by default and I dont change it… even if I execute camera.lookAt(new Vector3D(0,0,0)) before every camera.render(). it doesnt help

kornwaretm, Newbie
Posted: 18 October 2011 04:15 PM Total Posts: 21 [ # 3 ]

just a curious question, are you looking for orthogonal camera?

sargon, Member
Posted: 18 October 2011 06:28 PM Total Posts: 51 [ # 4 ]

what do you mean by saying orthogonal camera ?

way I do it:

random size,xPos ...

var sp:Sprite3D = new Sprite3D(new ColorMaterial( 0xff0000 ),size,size);
    sp.mouseEnabled = false;
    sp.x = xPos;
    sp.y = yPos;
    sp.z = zPos;
    
OC3D.addChild(sp); 

where OC3D:ObjectContainer3D;

then
scene.addChild(OC3D);

camera is always looking at (0,0,0) ...
problem is:
sprites position behavior depends on camera.tilt/panangle

when camera stays in posision (tween of pan/tilt angle ends) sprites are in corect position.

I do not change sprites,oc3d position…

kornwaretm, Newbie
Posted: 19 October 2011 04:40 AM Total Posts: 21 [ # 5 ]

sorry I’m just guessing. it is hard to understand your need actually.
orthogonal
http://en.wikipedia.org/wiki/Orthographic_projection

perspective
http://en.wikipedia.org/wiki/Perspective_distortion_(photography)

Sprite3D position problem Software: Away3D 4.x

sargon, Member Posted: 18 October 2011 12:26 PM Total Posts: 51 Hi I have some problem with rendering 1000 x Sprites3D. I have 1000 Sprites in container and when I change tilt/pan angle of my camera which is HovecCamera3D, sprites “change” their position. When I change tiltangle of camera sprites go up/down and goes back to their position in the view. Others objects that are in the same container behavior corectly, it doesn’t depend how many Sprites I have. Any ideas ?
kornwaretm, Newbie Posted: 18 October 2011 01:58 PM Total Posts: 21 [ # 1 ] please check where your camera looking at. you have to call lookAt after you move your camera
sargon, Member Posted: 18 October 2011 03:01 PM Total Posts: 51 [ # 2 ] but my camera is always looking at (0,0,0) by default and I dont change it… even if I execute camera.lookAt(new Vector3D(0,0,0)) before every camera.render(). it doesnt help
kornwaretm, Newbie Posted: 18 October 2011 04:15 PM Total Posts: 21 [ # 3 ] just a curious question, are you looking for orthogonal camera?
sargon, Member Posted: 18 October 2011 06:28 PM Total Posts: 51 [ # 4 ] what do you mean by saying orthogonal camera ? way I do it: random size,xPos ... `var sp:Sprite3D = new Sprite3D(new ColorMaterial( 0xff0000 ),size,size); sp.mouseEnabled = false; sp.x = xPos; sp.y = yPos; sp.z = zPos; OC3D.addChild(sp);` where OC3D:ObjectContainer3D; then scene.addChild(OC3D); camera is always looking at (0,0,0) ... problem is: sprites position behavior depends on camera.tilt/panangle when camera stays in posision (tween of pan/tilt angle ends) sprites are in corect position. I do not change sprites,oc3d position…
kornwaretm, Newbie Posted: 19 October 2011 04:40 AM Total Posts: 21 [ # 5 ] sorry I’m just guessing. it is hard to understand your need actually. orthogonal http://en.wikipedia.org/wiki/Orthographic_projection perspective http://en.wikipedia.org/wiki/Perspective_distortion_(photography)

Sprite3D position problem

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