КАЛЬЯНЫ НА ДОМ В МОСКВЕ
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class Stage {
constructor() {
this.renderParam = {
clearColor: 0x666666,
width: window.innerWidth,
height: window.innerHeight
};
this.cameraParam = {
left: -1,
right: 1,
top: 1,
bottom: 1,
near: 0,
far: -1
};
this.scene = null;
this.camera = null;
this.renderer = null;
this.geometry = null;
this.material = null;
this.mesh = null;
this.isInitialized = false;
}
init() {
this._setScene();
this._setRender();
this._setCamera();
this.isInitialized = true;
}
_setScene() {
this.scene = new THREE.Scene();
}
_setRender() {
this.renderer = new THREE.WebGLRenderer({
canvas: document.getElementById("webgl-canvas")
});
this.renderer.setPixelRatio(window.devicePixelRatio);
this.renderer.setClearColor(new THREE.Color(this.renderParam.clearColor));
this.renderer.setSize(this.renderParam.width, this.renderParam.height);
}
_setCamera() {
if (!this.isInitialized) {
this.camera = new THREE.OrthographicCamera(
this.cameraParam.left,
this.cameraParam.right,
this.cameraParam.top,
this.cameraParam.bottom,
this.cameraParam.near,
this.cameraParam.far
);
}
const windowWidth = window.innerWidth;
const windowHeight = window.innerHeight;
this.camera.aspect = windowWidth / windowHeight;
this.camera.updateProjectionMatrix();
this.renderer.setSize(windowWidth, windowHeight);
}
_render() {
this.renderer.render(this.scene, this.camera);
}
onResize() {
this._setCamera();
}
onRaf() {
this._render();
}
}
class Mesh {
constructor(stage) {
this.uniforms = {
resolution: { type: "v2", value: [ window.innerWidth, window.innerHeight ] },
time: { type: "f", value: 0.0 },
xScale: { type: "f", value: 1.0 },
yScale: { type: "f", value: 0.5 },
distortion: { type: "f", value: 0.050 }
};
this.stage = stage;
this.mesh = null;
this.xScale = 1.0;
this.yScale = 0.5;
this.distortion = 0.050;
}
init() {
this._setMesh();
this._setGui();
}
_setMesh() {
const position = [
-1.0, -1.0, 0.0,
1.0, -1.0, 0.0,
-1.0, 1.0, 0.0,
1.0, -1.0, 0.0,
-1.0, 1.0, 0.0,
1.0, 1.0, 0.0
];
const positions = new THREE.BufferAttribute(new Float32Array(position), 3);
const geometry = new THREE.BufferGeometry();
geometry.setAttribute("position", positions);
const material = new THREE.RawShaderMaterial({
vertexShader: document.getElementById("js-vertex-shader").textContent,
fragmentShader: document.getElementById("js-fragment-shader").textContent,
uniforms: this.uniforms,
side: THREE.DoubleSide
});
this.mesh = new THREE.Mesh(geometry, material);
this.stage.scene.add(this.mesh);
}
_render() {
this.uniforms.time.value += 0.01;
}
_setGui() {
const parameter = {
xScale: this.xScale,
yScale: this.yScale,
distortion: this.distortion
}
const gui = new dat.GUI();
gui.add(parameter, "xScale", 0.00, 5.00, 0.01).onChange((value) => {
this.mesh.material.uniforms.xScale.value = value;
});
gui.add(parameter, "yScale", 0.00, 1.00, 0.01).onChange((value) => {
this.mesh.material.uniforms.yScale.value = value;
});
gui.add(parameter, "distortion", 0.001, 0.100, 0.001).onChange((value) => {
this.mesh.material.uniforms.distortion.value = value;
});
}
onRaf() {
this._render();
}
}
(() => {
const stage = new Stage();
stage.init();
const mesh = new Mesh(stage);
mesh.init();
window.addEventListener("resize", () => {
stage.onResize();
});
const _raf = () => {
window.requestAnimationFrame(() => {
stage.onRaf();
mesh.onRaf();
_raf();
});
};
_raf();
})();