threejs-interaction

To add mouse click detection in a Three.js scene, you hook a Raycaster to pointer click events and evaluate intersections against scene objects. This enables interactive object selection directly from user mouse input.

Yes, you can use OrbitControls to handle camera movement and touch input simultaneously. The module maps touch and mouse input events to camera rotation, zoom, and pan controls, enabling real-time interactive 3D navigation.

The best way to implement 3D object selection in Three.js is by utilizing Raycaster. It tracks mouse and touch input coordinates to intersect scene geometry, accurately registering which specific 3D object the user interacted with.

You do not need to manually manage touch input events entirely from scratch. This skill handles input event mapping for both mouse and touch, standardizing interaction logic so you can drive interactive 3D experiences efficiently.

Raycasting returns no intersections on object click when input coordinates are not properly normalized to the canvas or the target objects are excluded from the Raycaster evaluation. Accurate camera and input event mapping are required.