@threlte/extras

<GLTF>

To use DRACO compression, provide a path to the DRACO decoder. To use KTX2 compressed textures, provide a path to the KTX2 transcoder.

Change the property url to load new 3D content. The new content will be swapped as soon as loading is finished.

Use the hook useGltf to reuse a glTF model or to use parts of it.

<script lang="ts">
  import { Canvas } from '@threlte/core'
  import Scene from './Scene.svelte'
</script>

<div>
  <Canvas>
    <Scene />
  </Canvas>
</div>

<style>
  div {
    height: 100%;
  }
</style>

<script lang="ts">
  import { T } from '@threlte/core'
  import { Environment, GLTF, OrbitControls } from '@threlte/extras'
</script>

<Environment
  path="/hdr/"
  files="shanghai_riverside_1k.hdr"
/>

<T.PerspectiveCamera
  makeDefault
  position={[5, 2, 5]}
  fov={25}
>
  <OrbitControls
    autoRotate
    enableDamping
  />
</T.PerspectiveCamera>

<T.AmbientLight />

<GLTF url="/models/helmet/DamagedHelmet.gltf" />

Interaction

The <GLTF> component supports interaction events with the use of interactivity plugin.

<script>
  import { interactivity } from '@threlte/extras'
  interactivity()
</script>

<GLTF
  url="/models/helmet/DamagedHelmet.gltf"
  interactive
  on:click={() => {
    console.log('User clicked!')
  }}
/>

Example

<script>
  import { GLTF } from '@threlte/extras'
</script>

<GLTF
  castShadow
  receiveShadow
  url={'/models/flower.glb'}
  position={{ y: 1 }}
  scale={3}
/>

Compression

The <GLTF> component supports compressed glTF files.

DRACO

You can set useDraco to true to use DRACO compression and Threlte will load a default DRACO decoder from Google servers, specifically https://www.gstatic.com/draco/v1/decoders/.

Or you can set useDraco to your own DRACO decoder path as a string.

Meshopt

You can set useMeshopt to true to use meshopt compression and Threlte will load a default meshopt decoder from Three, specifically https://github.com/mrdoob/three.js/blob/dev/examples/jsm/libs/meshopt_decoder.module.js.