@threlte/extras
<PerfMonitor>
Utility component for monitoring basic rendering statistics using three-perf.
<script lang="ts">
import { Canvas } from '@threlte/core'
import Scene from './Scene.svelte'
import { PerfMonitor } from '@threlte/extras'
</script>
<div>
<Canvas>
<PerfMonitor />
<Scene />
</Canvas>
</div>
<style>
div {
height: 100%;
}
</style><script lang="ts">
import { T } from '@threlte/core'
import { OrbitControls } from '@threlte/extras'
import { DoubleSide } from 'three'
import { DEG2RAD } from 'three/src/math/MathUtils.js'
</script>
<T.PerspectiveCamera
makeDefault
position={[45, 40, -45]}
fov={90}
>
<OrbitControls
autoRotate
autoRotateSpeed={0.1}
target.y={-10}
/>
</T.PerspectiveCamera>
<T.AmbientLight intensity={1} />
<T.DirectionalLight position={[10, 5, 0]} />
<T.Mesh
rotation.x={DEG2RAD * -90}
castShadow
receiveShadow
>
<T.PlaneGeometry args={[1000, 1000]} />
<T.MeshStandardMaterial color={'#fa992a'} />
</T.Mesh>
<T.Mesh>
<T.SphereGeometry args={[400]} />
<T.MeshBasicMaterial
color="#0057fa"
side={DoubleSide}
/>
</T.Mesh>
{#each { length: 120 } as _, x}
{@const distance = Math.abs(Math.sin(x)) * 50 + 10}
{@const height = Math.abs((30 - distance) / 2)}
{@const posX = distance * Math.cos(DEG2RAD * ((360 / 120) * x))}
{@const posY = distance * Math.sin(DEG2RAD * ((360 / 120) * x))}
<T.Mesh
castShadow
receiveShadow
position.x={posX}
position.y={height / 2}
position.z={posY}
>
<T.CapsuleGeometry args={[3, height, 12, 32]} />
<T.MeshStandardMaterial color={'#45c1ff'} />
</T.Mesh>
{/each}Usage
Simply drop in the <PerfMonitor> component as a child of Threlte <Canvas>.
The component starts measuring before mainStage and ends after renderStage.
Learn more about tasks in threlte here
<Canvas>
<PerfMonitor
anchorX={'right'}
logsPerSecond={30}
/>
<Scene />
</Canvas>