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80 lines
2.3 KiB
Markdown
80 lines
2.3 KiB
Markdown
# ✨ VueJS 3 + ViteJS + ThreeJS ⚡
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I wanted to try to write a lib similar to [react-three-fiber](https://github.com/react-spring/react-three-fiber) but for VueJS.
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Demos : https://troisjs.github.io/trois/
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I started from scratch... I don't know if I will have time to maintain this, but feel free to participate :)
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*Trois* is a french word, it means *Three*.
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## PoC
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I first made a simple *Proof of Concept*, take a look at [Test1.vue](/src/components/Test1.vue) :
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```html
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<Renderer>
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<PerspectiveCamera :position="{ z: 100 }"></PerspectiveCamera>
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<PhongMaterial id="material1" color="#ff0000"></PhongMaterial>
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<LambertMaterial id="material2" color="#0000ff"></LambertMaterial>
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<Scene>
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<PointLight :position="{ y: 50, z: 50 }"></PointLight>
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<Box ref="box" :size="10" material="material1"></Box>
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<Sphere ref="sphere" :radius="10" :position="{ x: 50 }" material="material2"></Sphere>
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</Scene>
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</Renderer>
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```
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## InstancedMesh
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Take a look at [Test3.vue](/src/components/Test3.vue).
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### Template
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```html
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<Renderer ref="renderer" :orbit-ctrl="{ enableDamping: true, dampingFactor: 0.05 }">
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<Camera :position="{ z: 100 }"></Camera>
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<PhongMaterial id="material" color="#ffffff"></PhongMaterial>
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<Scene id="scene1">
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<PointLight color="#ffffff" :intensity="0.5" :position="{ y: 50, z: 50 }"></PointLight>
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<PointLight color="#ff0000" :intensity="0.5" :position="{ y: -50, z: 50 }"></PointLight>
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<InstancedMesh ref="imesh" material="material" :count="1000">
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<SphereGeometry :radius="2"></SphereGeometry>
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</InstancedMesh>
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</Scene>
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</Renderer>
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```
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### Script : init instanceMatrix
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```js
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const { randFloat: rnd, randFloatSpread: rndFS } = MathUtils;
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const imesh = this.$refs.imesh.mesh;
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const dummy = new Object3D();
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for (let i = 0; i < 1000; i++) {
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dummy.position.set(rndFS(100), rndFS(100), rndFS(100));
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const scale = rnd(0.2, 1);
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dummy.scale.set(scale, scale, scale);
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dummy.updateMatrix();
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imesh.setMatrixAt(i, dummy.matrix);
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}
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imesh.instanceMatrix.needsUpdate = true;
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```
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## GTLF
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Take a look at [TestGLTF.vue](/src/components/TestGLTF.vue).
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```html
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<GLTFViewer src="test.glb" :camera-position="{ z: 1 }">
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<AmbientLight></AmbientLight>
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</GLTFViewer>
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```
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## Test
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git clone https://github.com/troisjs/trois
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cd trois
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yarn
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yarn dev
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