3d/html/002-webgpu-instead/main.js

import{a as o,b as k} from"../chunk-c8239659df5e5cce.js";class C{v;canvas;_adapter;_device;_context;telemetry;registry={onBeforeUpdate:[],onAfterUpdate:[],onUpdate:[],onStart:[]};constructor(v={}){this.config=v;this.config={fov:45,...v},this.canvas=document.querySelector("canvas"),this.canvas.width=window.innerWidth,this.canvas.height=window.innerHeight,this.telemetry=new k(this),this.init().catch((S)=>{const x=document.querySelector("main");if(x)x.innerHTML="<div><i>your browser didn't let me set up webgpu. firefox nightly or enable <code>dom.webgpu.enable</code>.</i></div>";throw new Error("Unable to initialize WebGPU. Your browser or machine may not support it.",S)})}async init(){if(!navigator.gpu)throw new Error("WebGPU not supported");if(this._adapter=await navigator.gpu.requestAdapter(),!this._adapter)throw new Error("No GPU adapter found");if(this._device=await this.adapter.requestDevice(),!this._device)throw new Error("No GPU device found");this._context=this.canvas.getContext("webgpu"),this.context.configure({device:this.device,format:"bgra8unorm",alphaMode:"premultiplied",...this.config.context})}get context(){if(!this._context)throw new Error("WebGPU context not initialized");return this._context}get adapter(){if(!this._adapter)throw new Error("WebGPU adapter not initialized");return this._adapter}get device(){if(!this._device)throw new Error("WebGPU device not initialized");return this._device}onBeforeUpdate(v){this.registry.onBeforeUpdate.push(v)}onAfterUpdate(v){this.registry.onAfterUpdate.push(v)}onUpdate(v){this.registry.onUpdate.push(v)}onStart(v){this.registry.onStart.push(v)}doUpdate(v){this.registry.onBeforeUpdate.forEach((S)=>S(v,this)),this.registry.onUpdate.forEach((S)=>S(v,this)),this.registry.onAfterUpdate.forEach((S)=>S(v,this))}doStart(v=0){this.registry.onStart.forEach((S)=>S(this,v))}async oneShot(v=0){this.doStart(v),this.doUpdate(v)}start(){this.doStart();const v=(S)=>{this.doUpdate(S),requestAnimationFrame(v)};requestAnimationFrame(v)}}class _ extends o{v;S;depthTexture;uniformBuffer;texture;sampler;uniformBindGroup;renderPassDescriptor;constructor(v,S){super(v);this.app=v;this.mesh=S}onStart(){console.log("hello from meshrenderer!"),console.log(`i've got a ${this.mesh.constructor.name}`)}onUpdate(v){}}class c{v;constructor(v){this.config=v}buffer(v){const S=v.device.createBuffer({size:this.config.mesh.byteLength,usage:GPUBufferUsage.VERTEX,mappedAtCreation:!0});return new Float32Array(S.getMappedRange()).set(this.config.mesh),S.unmap(),S}pipeline(v,S,x){const j=S.module(v);return v.device.createRenderPipeline({layout:"auto",vertex:{module:j,entryPoint:"main",buffers:[{arrayStride:4,attributes:[{shaderLocation:0,offset:0,format:"float32x4"},{shaderLocation:2,offset:this.config.positionSize,format:"float32x4"},{shaderLocation:1,offset:this.config.positionSize+this.config.colorSize,format:"float32x4"}]}]},fragment:{module:j,entryPoint:"main",targets:[{format:"rgba8unorm"}]},primitive:{topology:"triangle-list",cullMode:x.cullMode??"back"},depthStencil:x.stencil&&{depthWriteEnabled:!0,depthCompare:"less",format:"depth24plus"}})}}var E=new Float32Array([-1,-1,0,1,1,1,1,1,0,0,1,-1,0,1,1,1,1,1,1,0,-1,1,0,1,1,1,1,1,0,1,1,1,0,1,1,1,1,1,1,1]),q=new c({mesh:E,positionSize:16,colorSize:16,uvSize:8});var z="fn rgb2hsv(vec3f c)->vec3f{vec4f K=vec4f(0.0,-1.0/3.0,2.0/3.0,-1.0);vec4f p=mix(vec4f(c.bg,K.wz),vec4f(c.gb,K.xy),step(c.b,c.g));vec4f q=mix(vec4f(p.xyw,c.r),vec4f(c.r,p.yzx),step(p.x,c.r));f32 d=q.x-min(q.w,q.y);f32 e=1.0e-10;return vec3f(abs(q.z+(q.w-q.y)/(6.0*d+e)),d/(q.x+e),q.x);}fn hsv2rgb(vec3f c)->vec3f{vec4f K=vec4f(1.0,2.0/3.0,1.0/3.0,3.0);vec3f p=abs(fract(c.xxx+K.xyz)*6.0-K.www);return c.z*mix(K.xxx,clamp(p-K.xxx,0.0,1.0),c.y);}struct Uniforms{modelViewProjectionMatrix:mat4x4<f32>,time:f32,}@group(0)@binding(0)var<uniform> uniforms:Uniforms;struct v2f{@builtin(position)position:vec4f,@location(0)color:vec4f,@location(1)uv:vec2f,}@vertex fn main(@builtin(position)position:vec4f,@location(0)color:vec4f,@location(1)uv:vec2f,)->v2f{return v2f(uniforms.modelViewProjectionMatrix*position,color,uv);}@fragment fn main(@location(0)uv:vec2f,)->@location(0)vec4f{f32 z=sin(uniforms.time)*0.001*0.5+0.5;vec3f hsv=vec3f(uv.x,uv.y,z);hsv.x+=uniforms.time*0.0001;hsv.y=1.0;hsv.z=1.0;vec3f rgb=hsv2rgb(hsv);return saturate(vec4f(rgb,1.0));}";var D=new C({fov:20}),$=new _(D,q);console.log({rainbowPlane:z});D.start();