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I think it's because you're using MeshLambertMaterial, which calculates lighting on each vertex, instead of calculating on each face pixel. When the light hits a vertex (wide angle) it illuminates. But when the light only hits the face and doesn't touch a vertex (on narrower angles), the plane face doesn't show the light. Also, shining a yellow light on a blue box won't show anything due to the nature of light: #ffff00 * #0000ff = #000000.

Try changing to MeshPhongMaterial, and you'll see your lights and shadows being calculated more accurately. Run the code snippet below to see it in action.

The component that useLoader() is called from ( in this case) needs to be wrapped in a , a suspense fallback cannot be specified from within the component.

Earth.js:

In order to move things in three.js you use TransformControls. Check out https://threejs.org/docs/#examples/en/controls/TransformControls for its documentation and https://github.com/mrdoob/three.js/blob/master/examples/misc_controls_transform.html for implementation example.

Here you can set the mode to "translate" and scale to "XY" to restrict the movement in X and Y direction only.

One way to achieve your intended result is to work with shadows. So you have to set Object3D.castShadow and Object3D.receiveShadow to true for your spheres and your ground like in the following live example:

https://jsfiddle.net/85q3sfeg/

Also keep in mind that three.js does not support selective lighting so far. This issue was already discussed at github right here: https://github.com/mrdoob/three.js/issues/5180

Assuming all objects of your scene have a lit material applied, you can't define what light sources should affect what objects.

three.js R103

Found a way to deal with it. Actually I just specified the full relative path to the style file

You can't have a uppercase letter in the component name, a-frame will try to make it lowercase, (...) in the end it won't work.

Try naming it lightsout or lights_out. Throw in a console.log() when clicked, to be sure it's properly working.

Also You need to refresh the raycaster manually, using raycaster.refreshObjects(), it's a bug, which is fixed by december 2017 in the master build.