Selecting Objects with Mouse

Explore how to select and move objects in Three.js scenes using mouse interactions. Learn to use the THREE.Raycaster to detect which 3D object the mouse points to, enabling dynamic selection and dragging within animated scenes.

We'll cover the following...

Selecting and moving objects
Selecting objects
- Example: Selecting objects
The THREE.Raycaster

Selecting and moving objects

Besides animations, an important aspect that we’ll quickly run into when working with Three.js in more complex scenes is the ability to select objects on the screen using the mouse.

Even though not directly related to animations, knowing how to select and move objects is a nice addition to this chapter, considering we’ll also be looking at cameras and animations. Here, we will show how to do the following:

Select an object from a scene using the mouse.
Drag an object around the scene with the ...

1.Introduction to the Course

2.Part 1: Getting Up and Running

3.Creating the First 3D Scene with Three.js

4.The Basic Components That Make Up a Three.js Application

5.Working with Light Sources in Three.js

6.Part 2: Working with the Three.js Core Components

7.Working with Three.js Materials

8.Learning to Work with Geometries

9.Exploring Advanced Geometries

10.Points and Sprites

11.Part 3: Particle Clouds, Loading, and Animating Models

12.Creating and Loading Advanced Meshes and Geometries

13.Animation and Moving the Camera

14.Loading and Working with Textures

15.Part 4: Post-Processing, Physics, and Sounds

16.Render Post-Processing

17.Adding Physics and Sounds to Our Scene

18.Working with Blender and Three.js

19.Three.js: Together with React, TypeScript, and WebXR

20.Conclusion

21.Appendix

Selecting Objects with Mouse

Selecting and moving objects