I've got a camera somewhere in a 3d space. I need to calculate angle between camera and a given point .
I can't use lookAt()
method (nor any built-in Controller
), because I'm also rotating camera on mousemove and want to animate the rotation.
In a word: how to change camera.rotation
to make it look at specified point?
The typical approach for rotating a 3D object towards a target is the usage of Quaternion.rotateTowards() . It's usage is demonstrated in the official example webgl_math_orientation_transform .
The important bit of this approach is:
camera.quaternion.rotateTowards( targetQuaternion, step );
targetQuaternion
represents the target orientation whereas step
represents the angular step in radians. This value should honor the time delta for a correct animation.
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