threejs-interaction

To make Three.js objects clickable, use a Raycaster to cast rays from the camera through the mouse coordinates, detecting intersections with 3D meshes for object picking and click selection workflows.

The best way to add touch input and camera controls is implementing OrbitControls, which handles multi-touch events for orbit, pan, and zoom navigation while maintaining responsive interaction across mobile devices.

Yes, raycasting supports hover and drag selection in Three.js by continuously tracking pointer movement against scene objects, enabling interactive highlight states and selection helpers for 3D editors and configurators.

Three.js supports coordinate conversion for interactive 3D applications by translating screen-space mouse and touch input coordinates into normalized device coordinates for accurate raycasting and object manipulation.

Touch events feel unresponsive when event management patterns lack optimization, requiring performant event handling and coordinate conversion techniques to keep raycasting and camera controls smooth during interactive selection.

Yes, you need a Raycaster for drag workflows in Three.js to identify the target object under the pointer, combined with camera controls and selection helpers to maintain accurate object manipulation.