Away3D Forum Cameras from 3dsmax

Embalmer, Newbie
Posted: 15 January 2013 10:02 AM Total Posts: 6

Hi Everyone,

I need to create a 360° rotation tool to show all sides of a building. In fact; the building rotation is only a simulation because I only display HD pictures rendered with 3dsmax according to the mouse position.
However I have to display some interractive wired shapes over certain parts of the building so I tried export camera’s coordinates, rotation and fov from 3dsmax to recreate them into away 3d (and draw a simple cube with the same coordinates as the interractive shapes).
It seems there are problems because I can’t see the cube. I’m completly lost, is it a unit problem ? I use milimeters in my 3dsmax file but I’m not shure what kind of unit away3d uses. Should I use another way to do it ??

Here is my method to setup my camera :

protected function setupCamera(x:Number, y:Number, z:Number, rx:Number, ry:Number, rz:Number, zoom:Number, fov:Number) {
    away3DView.view.camera.position = new Vector3D(x,y,z);
    away3DView.view.camera.rotationX = rx;
    away3DView.view.camera.rotationY = ry;
    away3DView.view.camera.rotationZ = rz;
    away3DView.view.camera.lens = new PerspectiveLens(fov);
   } 

I use : Away3D 4.1 and Starling (to display the static background) on Flex 4.6

Thx

loth, Sr. Member
Posted: 15 January 2013 06:08 PM Total Posts: 236 [ # 1 ]

hello look my tutorial for good unit
http://3dflashlo.wordpress.com/awd-accuracy/

Embalmer, Newbie
Posted: 16 January 2013 01:51 PM Total Posts: 6 [ # 2 ]

Thanks loth for your tutorial. Unfortunatly, after modifying the units to “generic” it doesn’t solve my problem.

Here’s a more detailed explanation of my problem and my goal.

The attached pictures show my 3dsmax scene and how I get the box and camera coordinates

After taking all these measures and put it in my flex application :

// Creation of the box
box = new Mesh(new CubeGeometry(331.05, 236.268, 283), new SkyBoxMaterial(bct));
box.position = new Vector3D(4961.3, -6453.7, 0);
away3DView.view.scene.addChild(box);



 protected function setupCamera(x:Number, y:Number, z:Number, rx:Number, ry:Number, rz:Number, zoom:Number, fov:Number, updateContollers:Boolean=true) {
  away3DView.view.camera.position = new Vector3D(x,y,z);
  //away3DView.view.camera.lookAt(box.position);
  //away3DView.view.camera.lookAt(new Vector3D(4983.4,-6559.2,70.0)); // camera target
  away3DView.view.camera.lens = new PerspectiveLens(fov);
  away3DView.view.camera.rotateTo(rx,ry,rz);
  
  trace("camera rotation "+away3DView.view.camera.rotationX+";"+away3DView.view.camera.rotationY+";"+away3DView.view.camera.rotationZ);
  trace("camera position "+away3DView.view.camera.x+";"+away3DView.view.camera.y+";"+away3DView.view.camera.z);
  away3DView.view.render(); 

Embalmer, Newbie
Posted: 16 January 2013 01:56 PM Total Posts: 6 [ # 3 ]

And here’s the results (of my previous post), no cube at all (the building is a static bitmap background) (look attached file)

If I replace


away3DView.view.camera.rotateTo(rx,ry,rz);

By :

away3DView.view.camera.lookAt(box.position);

the results is the same, I have to increase the size of the box to see a piece of result :

for example :

box = new Mesh(new CubeGeometry(600, 600, 600), new SkyBoxMaterial(bct));

And the results is a cut cube with a weird rotation (look attached file).

Could you help me, because I totally lost;

Thx.

loth, Sr. Member
Posted: 16 January 2013 02:25 PM Total Posts: 236 [ # 4 ]

juste to be sure
3dsmax is Z up axis and away3d is Y up axis
for good fov in away3d you have to test different lens i have not formule

i look more closely you result

Embalmer, Newbie
Posted: 16 January 2013 03:49 PM Total Posts: 6 [ # 5 ]

Thks loth, I’ll look that way.
I also understood why my box was cut, it’s because of the far property of my camera.

I simply put a higher value to correct it (so I put the original box size back).


away3DView.view.camera.lens.far = 10000;

You can see the result in the attached file.

Don’t pay attention to the material, which used a BitmapCubeTexture with a box which is no longer a cube

Cameras from 3dsmax Software: Away3D 4.x

Embalmer, Newbie Posted: 15 January 2013 10:02 AM Total Posts: 6 Hi Everyone, I need to create a 360° rotation tool to show all sides of a building. In fact; the building rotation is only a simulation because I only display HD pictures rendered with 3dsmax according to the mouse position. However I have to display some interractive wired shapes over certain parts of the building so I tried export camera’s coordinates, rotation and fov from 3dsmax to recreate them into away 3d (and draw a simple cube with the same coordinates as the interractive shapes). It seems there are problems because I can’t see the cube. I’m completly lost, is it a unit problem ? I use milimeters in my 3dsmax file but I’m not shure what kind of unit away3d uses. Should I use another way to do it ?? Here is my method to setup my camera : `protected function setupCamera(x:Number, y:Number, z:Number, rx:Number, ry:Number, rz:Number, zoom:Number, fov:Number) { away3DView.view.camera.position = new Vector3D(x,y,z); away3DView.view.camera.rotationX = rx; away3DView.view.camera.rotationY = ry; away3DView.view.camera.rotationZ = rz; away3DView.view.camera.lens = new PerspectiveLens(fov); }` I use : Away3D 4.1 and Starling (to display the static background) on Flex 4.6 Thx
loth, Sr. Member Posted: 15 January 2013 06:08 PM Total Posts: 236 [ # 1 ] hello look my tutorial for good unit http://3dflashlo.wordpress.com/awd-accuracy/
Embalmer, Newbie Posted: 16 January 2013 01:51 PM Total Posts: 6 [ # 2 ] Thanks loth for your tutorial. Unfortunatly, after modifying the units to “generic” it doesn’t solve my problem. Here’s a more detailed explanation of my problem and my goal. The attached pictures show my 3dsmax scene and how I get the box and camera coordinates After taking all these measures and put it in my flex application : // Creation of the box box = new Mesh(new CubeGeometry(331.05, 236.268, 283), new SkyBoxMaterial(bct)); box.position = new Vector3D(4961.3, -6453.7, 0); away3DView.view.scene.addChild(box); protected function setupCamera(x:Number, y:Number, z:Number, rx:Number, ry:Number, rz:Number, zoom:Number, fov:Number, updateContollers:Boolean=true) { away3DView.view.camera.position = new Vector3D(x,y,z); //away3DView.view.camera.lookAt(box.position); //away3DView.view.camera.lookAt(new Vector3D(4983.4,-6559.2,70.0)); // camera target away3DView.view.camera.lens = new PerspectiveLens(fov); away3DView.view.camera.rotateTo(rx,ry,rz); trace("camera rotation "+away3DView.view.camera.rotationX+";"+away3DView.view.camera.rotationY+";"+away3DView.view.camera.rotationZ); trace("camera position "+away3DView.view.camera.x+";"+away3DView.view.camera.y+";"+away3DView.view.camera.z); away3DView.view.render();
Embalmer, Newbie Posted: 16 January 2013 01:56 PM Total Posts: 6 [ # 3 ] And here’s the results (of my previous post), no cube at all (the building is a static bitmap background) (look attached file) If I replace `away3DView.view.camera.rotateTo(rx,ry,rz);` By : away3DView.view.camera.lookAt(box.position); the results is the same, I have to increase the size of the box to see a piece of result : for example : box = new Mesh(new CubeGeometry(600, 600, 600), new SkyBoxMaterial(bct)); And the results is a cut cube with a weird rotation (look attached file). Could you help me, because I totally lost; Thx.
loth, Sr. Member Posted: 16 January 2013 02:25 PM Total Posts: 236 [ # 4 ] juste to be sure 3dsmax is Z up axis and away3d is Y up axis for good fov in away3d you have to test different lens i have not formule i look more closely you result
Embalmer, Newbie Posted: 16 January 2013 03:49 PM Total Posts: 6 [ # 5 ] Thks loth, I’ll look that way. I also understood why my box was cut, it’s because of the far property of my camera. I simply put a higher value to correct it (so I put the original box size back). `away3DView.view.camera.lens.far = 10000;` You can see the result in the attached file. Don’t pay attention to the material, which used a BitmapCubeTexture with a box which is no longer a cube

Cameras from 3dsmax

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