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129 | import './style.css'
import * as THREE from 'three/webgpu'
import {
positionLocal,
Fn,
length,
sin,
time,
vec3,
pow,
//float,
fract,
max,
uniform,
abs,
uniformArray,
} from 'three/tsl'
import { OrbitControls } from 'three/addons/controls/OrbitControls.js'
import { GUI } from 'three/addons/libs/lil-gui.module.min.js'
const scene = new THREE.Scene()
const camera = new THREE.PerspectiveCamera(
53,
window.innerWidth / window.innerHeight,
0.1,
10
)
camera.position.z = 1
const renderer = new THREE.WebGPURenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
document.body.appendChild(renderer.domElement)
renderer.setAnimationLoop(animate)
window.addEventListener('resize', function () {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
})
const controls = new OrbitControls(camera, renderer.domElement)
controls.target.set(1, -1, 0)
controls.enableDamping = true
const options = {
radius: 0.1,
intensity: 2.0,
zoom: 5.0,
layerZoom: 0.5,
rings: 10,
colours: [
new THREE.Color(1.0, 0.05, 0.3),
new THREE.Color(0.1, 0.4, 1.0),
new THREE.Color(0.2, 1, 0.2),
],
}
const radius = uniform(options.radius)
const intensity = uniform(options.intensity)
const zoom = uniform(options.zoom)
const layerZoom = uniform(options.layerZoom)
const rings = uniform(options.rings)
const colours = uniformArray(options.colours)
const main = Fn(() => {
const p = positionLocal.toVar()
p.mulAssign(zoom)
//const radius = float(0.1)
//const intensity = 2
//const colours = [vec3(1.0, 0.05, 0.3), vec3(0.1, 0.4, 1.0), vec3(0.2, 1, 0.2)]
const finalColour = vec3().toVar()
for (let i = 0; i < 3; i++) {
p.mulAssign(sin(i).add(layerZoom))
p.assign(fract(p).sub(0.5))
const distance = length(p)
distance.assign(sin(distance.mul(rings).sub(time)))
distance.assign(abs(distance))
// glow equation = pow(radius/distance), intensity)
distance.assign(pow(radius.div(distance), intensity))
finalColour.assign(max(finalColour, colours.element(i).mul(distance)))
}
return finalColour
})
// const material = new THREE.NodeMaterial()
// material.fragmentNode = main()
// const mesh = new THREE.Mesh(new THREE.PlaneGeometry(), material)
// scene.add(mesh)
scene.backgroundNode = main()
const gui = new GUI()
gui.add(options, 'radius', 0, 1, 0.01).onChange((v) => {
radius.value = v
})
gui.add(options, 'intensity', 0, 10, 0.01).onChange((v) => {
intensity.value = v
})
gui.add(options, 'zoom', 0.2, 50, 0.01).onChange((v) => {
zoom.value = v
})
gui.add(options, 'layerZoom', 0.1, 2, 0.01).onChange((v) => {
layerZoom.value = v
})
gui.add(options, 'rings', 0, 50, 0.01).onChange((v) => {
rings.value = v
})
gui.addColor(options.colours, 0)
gui.addColor(options.colours, 1)
gui.addColor(options.colours, 2)
function animate() {
controls.update()
renderer.render(scene, camera)
}
|
