pmndrs / Drei
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A growing collection of useful helpers and abstractions for react-three-fiber.
npm install @react-three/drei
👉 this package is now only published under the name @react-three/drei. drei has been deprecated. 👈
Basic usage:
import { PerspectiveCamera, PositionalAudio, ... } from '@react-three/drei'
React-native:
import { PerspectiveCamera, PositionalAudio, ... } from '@react-three/drei/native'
The native route of the library does not export Html or Loader. The default export of the library is web which does export Html and Loader.
Index
Cameras
PerspectiveCamera
A responsive THREE.PerspectiveCamera that can set itself as the default.
<PerspectiveCamera
makeDefault // Registers it as the default camera system-wide (default=false)
{...props} // All THREE.PerspectiveCamera props are valid
>
<mesh />
</PerspectiveCamera>
OrthographicCamera
A responsive THREE.OrthographicCamera that can set itself as the default.
CameraShake
A component for applying a configurable camera shake effect. Currently only supports rotational camera shake. Pass a ref to recieve the ShakeController API.
const config = {
maxYaw: 0.1, // Max amount camera can yaw in either direction
maxPitch: 0.1, // Max amount camera can pitch in either direction
maxRoll: 0.1, // Max amount camera can roll in either direction
yawFrequency: 1, // Frequency of the the yaw rotation
pitchFrequency: 1, // Frequency of the pitch rotation
rollFrequency: 1, // Frequency of the roll rotation
intensity: 1, // initial intensity of the shake
decay: false // should the intensity decay over time
decayRate: 0.65 // if decay = true this is the rate at which intensity will reduce at
additive: false // this should be used when your scene has orbit controls
}
<CameraShake {...config} />
interface ShakeController {
getIntensity: () => number
setIntensity: (val: number) => void
}
CubeCamera
A THREE.CubeCamera that returns its texture as a render-prop. It makes children invisible while rendering to the internal buffer so that they are not included in the reflection.
Using the frames prop you can control if this camera renders indefinitively or statically (a given number of times).
If you have two static objects in the scene, make it frames={2} for instance, so that both objects get to "see" one another in the reflections, which takes multiple renders.
If you have moving objects, unset the prop and use a smaller resolution instead.
<CubeCamera
resolution={256} // Size of the off-buffer (256 by default)
frames={Infinity} // How many frames it should render (Indefinitively by default)
fog={customFog} // Allows you to pass a Fog or FogExp2 instance for a smaller frustrum
near={1}
far={1000}
>
{(texture) => (
<mesh>
<sphereGeometry />
<meshStandardMaterial envMap={texture} />
</mesh>
)}
</CubeCamera>
Controls
If available controls have damping enabled by default, they manage their own updates, remove themselves on unmount, are compatible with the invalidateFrameloop canvas-flag. They inherit all props from their underlying THREE controls.
Drei currently exports OrbitControls 
Every control component can be used with a custom camera using the camera prop:
const myCamera = useResource()
return (
<>
<PerspectiveCamera ref={myCamera} position={[0, 5, 5]} />
<OrbitControls camera={myCamera.current} />
</>
)
PointerLockControls additionally supports a selector prop, which enables the binding of click event handlers for control activation to other elements than document (e.g. a 'Click here to play' button).
Shapes
Buffer-geometry short-cuts for Plane, Box, Sphere, Circle, Cone, Cylinder, Tube, Torus, TorusKnot, Ring, Tetrahedron, Polyhedron, Icosahedron, Octahedron, Dodecahedron, Extrude, Lathe, Parametric.
<Plane args={[2, 2]} />
<Sphere>
<meshBasicMaterial attach="material" color="hotpink" />
</Sphere>
RoundedBox
A box buffer geometry with rounded corners, done with extrusion.
<RoundedBox
args={[1, 1, 1]} // Width, Height and Depth of the box
radius={0.05} // Border-Radius of the box
smoothness={4} // Optional, number of subdivisions
{...meshProps} // All THREE.Mesh props are valid
>
<meshPhongMaterial attach="material" color="#f3f3f3" wireframe />
</RoundedBox>
ScreenQuad
<ScreenQuad>
<myMaterial />
</ScreenQuad>
A triangle that fills the screen, ideal for full-screen fragment shader work (raymarching, postprocessing). 👉 Why a triangle? 👉 Use as a post processing mesh
Abstractions
Text
Hi-quality text rendering w/ signed distance fields (SDF) and antialiasing, using troika-3d-text. All of troikas props are valid!
<Text
color="black" // default
anchorX="center" // default
anchorY="middle" // default
>
hello world!
</Text>
Line
Renders a THREE.Line2.
<Line
points={[[0, 0, 0], ...]} // Array of points
color="black" // Default
lineWidth={1} // In pixels (default)
dashed={false} // Default
vertexColors={[[0, 0, 0], ...]} // Optional array of RGB values for each point
{...lineProps} // All THREE.Line2 props are valid
{...materialProps} // All THREE.LineMaterial props are valid
/>
QuadraticBezierLine
Renders a THREE.Line2 using THREE.QuadraticBezierCurve3 for interpolation.
<QuadraticBezierLine
start={[0, 0, 0]} // Starting point
end={[10, 0, 10]} // Ending point
mid={[5, 0, 5]} // Optional control point
color="black" // Default
lineWidth={1} // In pixels (default)
dashed={false} // Default
vertexColors={[[0, 0, 0], ...]} // Optional array of RGB values for each point
{...lineProps} // All THREE.Line2 props are valid
{...materialProps} // All THREE.LineMaterial props are valid
/>
CubicBezierLine
Renders a THREE.Line2 using THREE.CubicBezierCurve3 for interpolation.
<CubicBezierLine
start={[0, 0, 0]} // Starting point
end={[10, 0, 10]} // Ending point
midA={[5, 0, 0]} // First control point
midB={[0, 0, 5]} // Second control point
color="black" // Default
lineWidth={1} // In pixels (default)
dashed={false} // Default
vertexColors={[[0, 0, 0], ...]} // Optional array of RGB values for each point
{...lineProps} // All THREE.Line2 props are valid
{...materialProps} // All THREE.LineMaterial props are valid
/>
PositionalAudio
A wrapper around THREE.PositionalAudio. Add this to groups or meshes to tie them to a sound that plays when the camera comes near.
<PositionalAudio
url="/sound.mp3" // Url of the sound file
distance={1} // Camera distance (default=1)
loop // Repat play (default=true)
{...props} // All THREE.PositionalAudio props are valid
/>
Billboard
Adds a <Plane /> that always faces the camera.
<Billboard
follow={true} // Follow the camera (default=true)
lockX={false} // Lock the rotation on the x axis (default=false)
lockY={false} // Lock the rotation on the y axis (default=false)
lockZ={false} // Lock the rotation on the z axis (default=false)
/>
GizmoHelper
Used by widgets that visualize and control camera position.
Two example gizmos are included: GizmoViewport and GizmoViewcube, and useGizmoContext makes it easy to create your own.
<GizmoHelper
alignment="bottom-right" // widget alignment within scene
margin={[80, 80]} // widget margins (X, Y)
onUpdate={/* called during camera animation */}
onTarget={/* return current camera target (e.g. from orbit controls) to center animation */}
>
<GizmoViewport axisColors={['red', 'green', 'blue']} labelColor="black" />
{/* alternative: <GizmoViewcube /> */}
</GizmoHelper>
Environment
Sets up a global cubemap, which affects the default scene.environment, and optionally scene.background, unless a custom scene has been passed. A selection of presets from HDRI Haven are available for convenience.
<Environment
background={false} // Whether to affect scene.background
files={['px.png', 'nx.png', 'py.png', 'ny.png', 'pz.png', 'nz.png']} // Array of cubemap files OR single equirectangular file
path={'/'} // Path to the above file(s)
preset={null} // Preset string (overrides files and path)
scene={undefined} // adds the ability to pass a custom THREE.Scene
/>
Effects
Abstraction around threes own EffectComposer.
<Effects
multisamping={8} // Default, uses WebGL2 multisamping if available
renderIndex={1} // Default
disableGamma={false} // Default, would switch off the gamma-correction-pass
disableRenderPass={false} // Default, would remove the first scene-render-pass
>
{/* Generic passes go here ... */}
<lUTPass attachArray="passes" lut={texture3D} />
</Effects>
useAnimations
A hook that abstracts AnimationMixer.
const { nodes, materials, animations } = useGLTF(url)
const { ref, mixer, names, actions, clips } = useAnimations(animations)
useEffect(() => {
actions.jump.play()
})
return (
<mesh ref={ref} />
Shaders
MeshWobbleMaterial
This material makes your geometry wobble and wave around. It was taken from the threejs-examples and adapted into a self-contained material.
<mesh>
<boxBufferGeometry attach="geometry" />
<MeshWobbleMaterial
attach="material"
factor={1} // Strength, 0 disables the effect (default=1)
speed={10} // Speed (default=1)
/>
</mesh>
MeshDistortMaterial
This material makes your geometry distort following simplex noise.
<mesh>
<boxBufferGeometry attach="geometry" />
<MeshDistortMaterial
attach="material"
distort={1} // Strength, 0 disables the effect (default=1)
speed={10} // Speed (default=1)
/>
</mesh>
Sky
Adds a sky to your scene.
<Sky
distance={450000} // Camera distance (default=450000)
sunPosition={[0, 1, 0]} // Sun position normal (defaults to inclination and azimuth if not set)
inclination={0} // Sun elevation angle from 0 to 1 (default=0)
azimuth={0.25} // Sun rotation around the Y axis from 0 to 1 (default=0.25)
{...props} // All three/examples/jsm/objects/Sky props are valid
/>
Stars
Adds a blinking shader-based starfield to your scene.
<Stars
radius={100} // Radius of the inner sphere (default=100)
depth={50} // Depth of area where stars should fit (default=50)
count={5000} // Amount of stars (default=5000)
factor={4} // Size factor (default=4)
saturation={0} // Saturation 0-1 (default=0)
fade // Faded dots (default=false)
/>
ContactShadows
A contact shadow implementation.
<ContactShadows
opacity={1}
width={1}
height={1}
blur={1} // Amount of blur (default=1)
far={10} // Focal distance (default=10)
resolution={256} // Rendertarget resolution (default=256)
/>
softShadows
Injects percent closer soft shadows (pcss) into threes shader chunk.
softShadows({
frustum: 3.75, // Frustum width (default: 3.75) must be a float
size: 0.005, // World size (default: 0.005) must be a float
near: 9.5, // Near plane (default: 9.5) must be a float
samples: 17, // Samples (default: 17) must be a int
rings: 11, // Rings (default: 11) must be a int
})
shaderMaterial
Creates a THREE.ShaderMaterial for you with easier handling of uniforms, which are also automatically declared as setter/getters on the object.
import { extend } from 'react-three-fiber'
import glsl from 'babel-plugin-glsl/macro'
const ColorShiftMaterial = shaderMaterial(
{ time: 0, color: new THREE.Color(0.2, 0.0, 0.1) },
// vertex shader
glsl`
varying vec2 vUv;
void main() {
vUv = uv;
gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);
}
`,
// fragment shader
glsl`
uniform float time;
uniform vec3 color;
varying vec2 vUv;
void main() {
gl_FragColor.rgba = vec4(0.5 + 0.3 * sin(vUv.yxx + time) + color, 1.0);
}
`
)
extend({ ColorShiftMaterial })
// in your component
<mesh>
<colorShiftMaterial attach="material" color="hotpink" time={1} />
</mesh>
Misc
useContextBridge
Allows you to forward contexts provided above the <Canvas /> to be consumed from within the <Canvas /> normally
function SceneWrapper() {
// bridge any number of contexts
const ContextBridge = useContextBridge(ThemeContext, GreetingContext)
return (
<Canvas>
<ContextBridge>
<Scene />
</ContextBridge>
</Canvas>
)
}
function Scene() {
// we can now consume a context within the Canvas
const theme = React.useContext(ThemeContext)
const greeting = React.useContext(GreetingContext)
return (
//...
)
}
useFBO
Creates a THREE.WebGLRenderTarget or THREE.WebGLMultisampleRenderTarget.
const target = useFBO(
// width: 500, height: 500,
// width and height are optional and defaulted to the viewport size
// multiplied by the renderer pixel ratio, and recalculated whenever the
// viewport size changes.
{
multisample: true, // if the renderer supports webGL2, it will return a WebGLMultisampleRenderTarget
stencilBuffer: false, // you can pass any options supported by THREE.WebGLRenderTarget
}
)
The rendertarget is automatically disposed when unmounted.
Html
Allows you to tie HTML content to any object of your scene. It will be projected to the objects whereabouts automatically.
<Html
prepend // Project content behind the canvas (default: false)
center // Adds a -50%/-50% css transform (default: false) [ignored in transform mode]
fullscreen // Aligns to the upper-left corner, fills the screen (default:false) [ignored in transform mode]
distanceFactor={10} // If set (default: undefined), children will be scaled by this factor, and also by distance to a PerspectiveCamera / zoom by a OrthographicCamera.
zIndexRange={[100, 0]} // Z-order range (default=[16777271, 0])
portal={domnodeRef} // Reference to target container (default=undefined)
transform // If true, applies matrix3d transformations (default=false)
sprite // Renders as sprite, but only in transform mode (default=false)
calculatePosition={(el: Object3D, camera: Camera, size: { width: number; height: number }) => number[]} // Override default positioning function. May be removed in the future (default=undefined) [ignored in transform mode]
{...groupProps} // All THREE.Group props are valid
{...divProps} // All HTMLDivElement props are valid
>
<h1>hello</h1>
<p>world</p>
</Html>
Reflector
Easily add reflections and/or blur to a planar surface. This reflector can also blur and takes surface roughness into account for a more realistic effect.
<Reflector
blur={[0, 0]} // Blur ground reflections (width, heigt), 0 skips blur
mixBlur={1.0} // How much blur mixes with surface roughness
mixStrength={0.5} // Strength of the reflections
resolution={256} // Off-buffer resolution, lower=faster, higher=better quality
args={[1, 1]} // PlaneBufferGeometry arguments
mirror={0.5} // Mirror environment, 0 = texture colors, 1 = pick up env colors
minDepthThreshold={0.9} // Lower edge for the depthTexture interpolation (default = 0)
maxDepthThreshold={1} // Upper edge for the depthTexture interpolation (default = 0)
depthScale={1} // Scale the depth factor (0 = no depth, default = 0)
depthToBlurRatioBias={0.25} // Adds a bias factor to the depthTexture before calculating the blur amount [blurFactor = blurTexture * (depthTexture + bias)]. It accepts values between 0 and 1, default is 0.25. An amount > 0 of bias makes sure that the blurTexture is not too sharp because of the multiplication with the depthTexture
debug={0} /* Depending on the assigned value, one of the following channels is shown:
0 = no debug
1 = depth channel
2 = roughness channel
3 = base channel
4 = blur channel
*/
>
{(Material, props) => <Material {...props}>}
</Reflector>
Shadow
A cheap canvas-texture-based circular gradient.
<Shadow
color="black" // Color (default:black)
colorStop={0} // First gradient-stop (default:0)
opacity={0.5} // Alpha (default:0.5)
fog={false} // Reacts to fog (default=false)
/>
Stats
Adds stats to document.body. It takes over the render-loop!
<Stats
showPanel={0} // Start-up panel (default=0)
className="stats" // Optional className to add to the stats container dom element
{...props} // All stats.js props are valid
/>
You can choose to mount Stats to a different DOM Element - for example, for custom styling:
const node = useRef(document.createElement('div'))
useEffect(() => {
node.current.id = 'test'
document.body.appendChild(node.current)
return () => document.body.removeChild(node.current)
}, [])
return <Stats parent={parent} />
Center
Calculates a boundary box and centers its children accordingly.
<Center>
<mesh />
</Center>
useCamera
A hook for the rare case when you are using non-default cameras for heads-up-displays or portals, and you need events/raytracing to function properly (raycasting uses the default camera otherwise).
<mesh raycast={useCamera(customCamera)} />
useHelper
A hook for a quick way to add helpers to existing nodes in the scene. It handles removal of the helper on unmount and auto-updates it by default.
const mesh = useRef()
useHelper(mesh, BoxHelper, 'cyan')
useDetectGPU
This hook uses DetectGPU by @TimvanScherpenzeel to determine what tier should be assigned to the user's GPU.
👉 This hook CAN be used outside the react-three-fiber Canvas.
const GPUTier = useDetectGPU()
// show a fallback for mobile or lowest tier GPUs
return (
{(GPUTier.tier === "0" || GPUTier.isMobile) ? <Fallback /> : <Canvas>...</Canvas>
useAspect
This hook calculates aspect ratios (for now only what in css would be image-size: cover is supported). You can use it to make an image fill the screen. It is responsive and adapts to viewport resize. Just give the hook the image bounds in pixels. It returns an array: [width, height, 1].
const scale = useAspect(
"cover", // Aspect ratio: cover | ... more to come, PR's welcome ;)
1024, // Pixel-width
512, // Pixel-height
1 // Optional scaling factor
)
return (
<mesh scale={scale}>
<planeBufferGeometry />
<meshBasicMaterial map={imageTexture} />
Modifiers
CurveModifier
Given a curve will replace the children of this component with a mesh that move along said curve calling the property moveAlongCurve on the passed ref. Uses three's Curve Modifier
const curveRef = useRef()
const curve = React.useMemo(() => new THREE.CatmullRomCurve3([...handlePos], true, 'centripetal'), [handlePos])
return (
<CurveModifier ref={curveRef} curve={curve}>
<mesh>
<boxBufferGeometry args={[10, 10]} />
</mesh>
</CurveModifier>
)
useEdgeSplit
This hook mutates a mesh geometry using three's Edge Split modifier. The first parameter is the cut-off angle, and the second parameter is a tryKeepNormals flag (default true).
const meshRef = useEdgeSplit(Math.PI / 2)
return (
<mesh ref={meshRef}>
<boxBufferGeometry args={[10, 10]} />
</mesh>
)
useSimplification
This hook mutates a mesh geometry using three's Simplification modifier.
👉 The simplification code is based on this algorithm.
const meshRef = useSimplification(0.5) // the vertices will be halved
return (
<mesh ref={meshRef}>
<octahedronBufferGeometry args={[2, 5]} />
</mesh>
)
useTessellation
This hook mutates a mesh geometry using three's Tessellation modifier. It will break-up faces withe edge longer than the maxEdgeLength parameter.
const meshRef = useTessellation(
2, // passes - number of times the geometry will be subdivided
8 // maxEdgeLength - faces with edges longer than this number will be broken up
)
return (
<mesh ref={meshRef}>
<octahedronBufferGeometry args={[2, 2]} />
</mesh>
)
Loading
Loader
A quick and easy loading overlay component that you can drop on top of your canvas. It's intended to "hide" the whole app, so if you have multiple suspense wrappers in your application, you should use multiple loaders. It will show an animated loadingbar and a percentage.
<Canvas>
<Suspense fallback={null}>
<AsyncModels />
</Suspense>
</Canvas>
<Loader />
You can override styles, too.
<Loader
containerStyles={...container} // Flex layout styles
innerStyles={...inner} // Inner container styles
barStyles={...bar} // Loading-bar styles
dataStyles={...data} // Text styles
dataInterpolation={(p) => `Loading ${p.toFixed(2)}%`} // Text
initialState={(active) => active} // Initial black out state
>
useProgress
A convenience hook that wraps THREE.DefaultLoadingManager's progress status.
function Loader() {
const { active, progress, errors, item, loaded, total } = useProgress()
return <Html center>{progress} % loaded</Html>
}
return (
<Suspense fallback={<Loader />}>
<AsyncModels />
</Suspense>
)
If you don't want your progress component to re-render on all changes you can be specific as to what you need, for instance if the component is supposed to collect errors only. Look into zustand for more info about selectors.
const errors = useProgress((state) => state.errors)
👉 Note that your loading component does not have to be a suspense fallback. You can use it anywhere, even in your dom tree, for instance for overlays.
useGLTF
A convenience hook that uses useLoader and GLTFLoader, it defaults to CDN loaded draco binaries (https://www.gstatic.com/draco/v1/decoders/) which are only loaded for compressed models.
// Loads model, uses CDN draco when needed
useGLTF(url)
// Use local draco binaries from a custom path
useGLTF(url, '/draco-gltf')
// Preload asset (you would do this in global space, not inside a component!)
useGLTF.preload(url)
useFBX
A convenience hook that uses useLoader and FBXLoader:
useFBX(url)
function SuzanneFBX() {
let fbx = useFBX('suzanne/suzanne.fbx')
// wrap fbx in primitive.
return <primitive object={fbx} dispose={null} />
}
useTexture
A convenience hook that uses useLoader and TextureLoader
const texture = useTexture(url)
const [texture1, texture2] = useTexture([texture1, texture2])
useCubeTexture
A convenience hook that uses useLoader and CubeTextureLoader
const envMap = useCubeTexture(['px.png', 'nx.png', 'py.png', 'ny.png', 'pz.png', 'nz.png'], { path: 'cube/' })
Prototyping
useMatcapTexture
Loads matcap textures from this repository: https://github.com/emmelleppi/matcaps
(It is a fork of this repository: https://github.com/nidorx/matcaps)
const [matcap, url] = useMatcapTexture(
0, // index of the matcap texture https://github.com/emmelleppi/matcaps/blob/master/matcap-list.json
1024 // size of the texture ( 64, 128, 256, 512, 1024 )
)
return (
...
<meshMatcapMaterial matcap={matcap} />
...
)
👉 You can also use the exact name of the matcap texture, like so:
const [matcap] = useMatcapTexture('3E2335_D36A1B_8E4A2E_2842A5')
👉 Use the url to download the texture when you are ready for production!
useNormalTexture
Loads normal textures from this repository: https://github.com/emmelleppi/normal-maps
const [normalMap, url] = useNormalTexture(
1, // index of the normal texture - https://github.com/emmelleppi/normal-maps/blob/master/normals.json
// second argument is texture attributes
{
offset: [0, 0],
repeat: [normRepeat, normRepeat],
anisotropy: 8
}
)
return (
...
<meshStandardMaterial normalMap={normalMap} />
...
)
Performance
Detailed
A wrapper around THREE.LOD (Level of detail).
<Detailed
distances={[0, 10, 20]} // Camera distances, correspends to the # of the children
{...props} // All THREE.LOD props are valid
>
<mesh geometry={highDetail} />
<mesh geometry={mediumDetail} />
<mesh geometry={lowDetail} />
</Detailed>
Preload
The WebGLRenderer will compile materials only when they hit the frustrum, which can cause jank. This component precompiles the scene using gl.compile which makes sure that your app is responsive from the get go.
By default gl.compile will only preload visible objects, if you supply the all prop, it will circumvent that. With the scene and camera props you could also use it in portals.
If you have async models you can drop it into the same suspense boundary in concurrent mode.
<Canvas concurrent>
<Suspense fallback={null}>
<Model />
<Preload all />
meshBounds
A very fast, but often good-enough bounds-only raycast for meshes. You can use this if performance has precidence over pointer precision.
<mesh raycast={meshBounds} />