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Alotoffish.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - decal splatter</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
</head>
<style>
body {
margin: 0
}
</style>
<body>
<div id="container"></div>
<script type="importmap">
{
"imports": {
"three": "./three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import Stats from 'three/addons/stats.module.js';
import { GUI } from 'three/addons/lil-gui.module.min.js';
import { OBJLoader } from 'three/addons/OBJLoader.js';
import { GLTFLoader } from 'three/addons/GLTFLoader.js';
import { OrbitControls } from 'three/addons/OrbitControls.js';
let objUniforms, stats
let shaderChunk, shaderChunk2
let texDataCurve,birdUniforms
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(60, innerWidth / innerHeight, 0.1, 11500);
camera.position.set(0, -25, 50);
const renderer = new THREE.WebGLRenderer({ antialias: false });
renderer.setClearColor(0x181005);
renderer.setSize(innerWidth, innerHeight);
document.body.appendChild(renderer.domElement);
stats = new Stats();
document.body.appendChild(stats.dom);
const controls = new OrbitControls(camera, renderer.domElement);
controls.enableDamping = true;
const axesHelper = new THREE.AxesHelper(5);
scene.add(axesHelper);
const light = new THREE.AmbientLight( 0x404040,10 ); // soft white light
scene.add( light );
const texture = new THREE.TextureLoader().load('textures/atlas.png' );
const loader = new GLTFLoader();
loader.load("/models/dragon_u.glb", (obj) => {
let objGeom = obj.scene.children[0].geometry;
objGeom.center();
objGeom.rotateX(Math.PI * 0.5);
birdUniforms = {
'texturePosition': { value: null },
'textureVelocity': { value: null },
'time': { value: 1.0 },
'delta': { value: 0.0 }
};
let mat2 = new THREE.MeshBasicMaterial({map:texture})
mat2.onBeforeCompile = (shader) => {
shader.uniforms.texturePosition = birdUniforms.texturePosition;
shader.uniforms.textureVelocity = birdUniforms.textureVelocity;
shader.vertexShader = `
uniform sampler2D texturePosition;
uniform sampler2D textureVelocity;
uniform float time;
uniform float delta;
` + shader.vertexShader;
shader.vertexShader = shader.vertexShader.replace(
`#include <begin_vertex>`,
`#include <begin_vertex>
`
);
shaderChunk = shader
console.log(shader)
}
const cInstancedMesh = new THREE.InstancedMesh(objGeom,mat2, 2024);
scene.add(cInstancedMesh);
});
const clock = new THREE.Clock();
renderer.setAnimationLoop(() => {
stats.update();
controls.update();
const t = clock.getElapsedTime();
renderer.render(scene, camera);
});
</script>
</body>
</html>