Three.js: Camera rotation to a camera target position

[SideraX]

Hi
I'm actually wirting a Three.js client of IMML ( http://www.vastpark.org/wiki/1/What_is_IMML ).
And by exemple in my XML that describe my 3D scene I have for a camera :

<Camera Name="LeftCamera" Enabled="False" FOV="60" NearPlane="0.01" FarPlane="1000" Rotation="0.7416796,1.606321,0" Position="-12.24768,14.11299,7.066072" />

And I having some issue at converting the rotation to a vector for my camera.target.position

Any idea ?

[mrdoob]

Do you need a target? If not, you can do this:

camera.useTarget = false;
camera.rotation.x = xml_data.rotation.x;
camera.rotation.y = xml_data.rotation.y;
camera.rotation.z = xml_data.rotation.z;

[SideraX]

Oh ! thanks for the tips !
This make things easier :) but I still have a problem, I thinks because of left-handed coordonate system that my xml use.

Do you know what I must be aware of to convert to the right-handed ?

[mrdoob]

Seems like you just need to invert the z.

[heaversm]

What happened to the camera target? I'm trying to use keyboard controls to rotate around an object. I can do this with things like threeX from the three.js boilerplate, or with the trackball controls, but I want constrained movement, only rotating around the Y axis. Is there a way to do this without target?

[mrdoob]

camera.lookAt( object.position );

[heaversm]

Thank you! At the risk of driving you crazy I'll ask one more...any way to constrain the movement of the trackball controls to one or more axis?

[mrdoob]

You just drove me crazy ;)