How to efficiently manage multiple objects as a unified entity in Three.js

Question

How to efficiently manage multiple objects as a unified entity in Three.js

Hello, I am new to the world of three.js and I am facing a challenge. I want to combine multiple objects into one single entity, essentially creating a bas-relief effect. Specifically, I need to render the following elements:

A box geometry serving as the base.
An extruded image placed on top of the base.
Some text integrated into the composition.

Each object should have its own unique material, but they should behave as one cohesive unit in terms of location and rotation.

As a beginner in three.js, I am unsure about the best approach to achieve this composite pattern. Should I use groups, join geometries, or merge meshes? What would be the most efficient way?

Currently, I have everything grouped together, but I have noticed some performance issues. Is there a better solution for optimizing the rendering process?

javascript three.js

Answer 1

Answer №1

If you want to organize your objects, consider nesting them within an Object3D instance.

container = new THREE.Object3D(); //creating a container
container.add( object1 ); //include an object with geometry
container.add( object2 );
scene.add( container ); //adding the container to the scene

UPDATE:
In Release 69, the THREE.Group class was introduced and it is recommended to use this instead of Object3D whenever possible. However, detailed documentation on this change is not readily available.
https://github.com/mrdoob/three.js/releases

group = new THREE.Group(); //create a container
group.add( mesh1 ); //add a mesh with geometry to it
group.add( mesh2 );
scene.add( group ); //add the group to the scene

Answer 2

If you want to organize your objects, consider nesting them within an Object3D instance.

container = new THREE.Object3D(); //creating a container
container.add( object1 ); //include an object with geometry
container.add( object2 );
scene.add( container ); //adding the container to the scene

UPDATE:
In Release 69, the THREE.Group class was introduced and it is recommended to use this instead of Object3D whenever possible. However, detailed documentation on this change is not readily available.
https://github.com/mrdoob/three.js/releases

group = new THREE.Group(); //create a container
group.add( mesh1 ); //add a mesh with geometry to it
group.add( mesh2 );
scene.add( group ); //add the group to the scene

How to efficiently manage multiple objects as a unified entity in Three.js

Answer №1

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