当前示例源码github地址:

https://github.com/vilyLei/voxwebgpu/blob/feature/rendering/src/voxgpu/sample/FogTest.ts

当前示例运行效果:

此示例基于此渲染系统实现，当前示例TypeScript源码如下：

export class FogTest {private mRscene = new RendererScene();initialize(): void {this.mRscene.initialize({ canvasWith: 512, canvasHeight: 512, rpassparam: { multisampleEnabled: true } });this.initScene();this.initEvent();}private initScene(): void {this.initEntities();}private initEntities(): void {this.initTexDisp();}private initTexDisp(): void {let rc = this.mRscene;let textures0 = this.createBaseTextures();let textures1 = this.createTextures("plastic");let position = new Vector3(0, 0, 0);let materials = this.createMaterials(position, textures0, 'front');let box = new CubeEntity({cubeSize: 1550.0,normalScale: -1.0,materials,transform: { position }});rc.addEntity(box);position = new Vector3(-580, 280, -580);materials = this.createMaterials(position, textures1);let sphere = new SphereEntity({radius: 150.0,materials,transform: { position }});rc.addEntity(sphere);position = new Vector3(0, 0, 280);materials = this.createMaterials(position, textures1);sphere = new SphereEntity({radius: 150.0,materials,transform: { position }});rc.addEntity(sphere);position = new Vector3(0, 0, -380);materials = this.createMaterials(position, textures1, 'back', [8, 1]);let torus = new TorusEntity({axisType: 2,materials,transform: { position }});rc.addEntity(torus);}private createMaterials(position: Vector3, textures: WGTextureDataDescriptor[], faceCullMode = 'back', uvParam?: number[]): BasePBRMaterial[] {let material0 = this.createMaterial(position, textures, faceCullMode, ["solid"]);let ppt = material0.property;ppt.fogExp2Enabled = true;ppt.fogColor.value = [0.3, 0.7, 0.2];this.applyMaterialPPt(material0);let list = [material0];if (uvParam) {for (let i = 0; i < list.length; ++i) {list[i].property.uvParam.value = uvParam;}}return list;}private applyMaterialPPt(material: BasePBRMaterial): void {let property = material.property;property.ambient.value = [0.0, 0.2, 0.2];property.albedo.value = [0.7, 0.7, 0.3];property.arms.roughness = 0.8;property.armsBase.value = [0, 0, 0];// property.uvParam.value = [2, 2];property.param.scatterIntensity = 32;}private mLightParams: LightShaderDataParam[] = [];private createMaterial(position: Vector3DataType, textures: WGTextureDataDescriptor[], faceCullMode = 'back', blendModes?: string[], depthCompare = 'less', lightParam?: LightShaderDataParam): BasePBRMaterial {if (!lightParam) {lightParam = this.createLightData(position);}let pipelineDefParam = {depthWriteEnabled: true,faceCullMode,blendModes,depthCompare};let material = new BasePBRMaterial({ pipelineDefParam });material.setLightParam(lightParam);material.addTextures(textures);return material;}private hdrEnvtex = new SpecularEnvBrnTexture();private createBaseTextures(): WGTextureDataDescriptor[] {const albedoTex = { albedo: { url: `static/assets/pbrtex/rough_plaster_broken_diff_1k.jpg` } };const normalTex = { normal: { url: `static/assets/pbrtex/rough_plaster_broken_nor_1k.jpg` } };const armTex = { arm: { url: `static/assets/pbrtex/rough_plaster_broken_arm_1k.jpg` } };let textures = [this.hdrEnvtex,albedoTex,normalTex,armTex] as WGTextureDataDescriptor[];return textures;}private createTextures(ns: string): WGTextureDataDescriptor[] {const albedoTex = { albedo: { url: `static/assets/pbr/${ns}/albedo.jpg` } };const normalTex = { normal: { url: `static/assets/pbr/${ns}/normal.jpg` } };const aoTex = { ao: { url: `static/assets/pbr/${ns}/ao.jpg` } };const roughnessTex = { roughness: { url: `static/assets/pbr/${ns}/roughness.jpg` } };const metallicTex = { metallic: { url: `static/assets/pbr/${ns}/metallic.jpg` } };const emissiveTex = { emissive: { url: `static/assets/color_07.jpg` } };let textures = [this.hdrEnvtex,albedoTex,normalTex,aoTex,roughnessTex,metallicTex,emissiveTex] as WGTextureDataDescriptor[];return textures;}private createLightData(position: Vector3DataType): LightShaderDataParam {let pos = new Vector3().setVector4(position);let pv0 = pos.clone().addBy(new Vector3(0, 200, 0));let pv1 = pos.clone().addBy(new Vector3(200, 0, 0));let pv2 = pos.clone().addBy(new Vector3(0, 0, 200));let pv3 = pos.clone().addBy(new Vector3(-200, 0, 0));let pv4 = pos.clone().addBy(new Vector3(0, 0, -200));let posList = [pv0, pv1, pv2, pv3, pv4];let c0 = new Color4(0.1 + Math.random() * 13, 0.1 + Math.random() * 13, 0.0, 0.00002);let c1 = new Color4(0.0, 0.1 + Math.random() * 13, 1.0, 0.00002);let c2 = new Color4(0.0, 0.1 + Math.random() * 13, 0.1 + Math.random() * 13, 0.00002);let c3 = new Color4(0.1 + Math.random() * 13, 1.0, 0.1 + Math.random() * 13, 0.00002);let c4 = new Color4(0.5, 1.0, 0.1 + Math.random() * 13, 0.00002);let colorList = [c0, c1, c2, c3, c4];let pointLightsTotal = posList.length;let j = 0;let lightsData = new Float32Array(4 * pointLightsTotal);let lightColorsData = new Float32Array(4 * pointLightsTotal);for (let i = 0; i < lightsData.length;) {const pv = posList[j];pv.w = 0.00002;pv.toArray4(lightsData, i);const c = colorList[j];c.toArray4(lightColorsData, i);j++;i += 4;}let param = { lights: lightsData, colors: lightColorsData, pointLightsTotal };this.mLightParams.push(param);return param;}private initEvent(): void {const rc = this.mRscene;rc.addEventListener(MouseEvent.MOUSE_DOWN, this.mouseDown);new MouseInteraction().initialize(rc, 0, false).setAutoRunning(true);}private mouseDown = (evt: MouseEvent): void => { };run(): void {this.mRscene.run();}
}