Ampandheaust
6bbf8039e4
Move glTF, picking, camera controls, and conventional handles into addons. Keep camera and material mutations in SIMD-aligned shared SOA rows and synchronize material updates directly into GPU buffers. Amp-Thread-ID: https://ampcode.com/threads/T-01a01380-b478-77d0-84a0-102880a5c5ae Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
12 lines
4.4 KiB
JavaScript
12 lines
4.4 KiB
JavaScript
import test from "node:test";
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import assert from "node:assert/strict";
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import { createCubeGeometry, createMaterialGalleryGlb, createUvSphereGeometry, encodeGeometryGlb, loadDemoLoadout, loadouts } from "../examples/render-graph-studio/demo-loadouts.js";
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function parseGlb(buffer){const view=new DataView(buffer);assert.equal(view.getUint32(0,true),0x46546c67);assert.equal(view.getUint32(4,true),2);assert.equal(view.getUint32(8,true),buffer.byteLength);const length=view.getUint32(12,true);assert.equal(view.getUint32(16,true),0x4e4f534a);const json=JSON.parse(new TextDecoder().decode(new Uint8Array(buffer,20,length)).trim());const bin=20+length;assert.equal(view.getUint32(bin+4,true),0x004e4942);assert.equal(view.getUint32(bin,true),json.buffers[0].byteLength);return json;}
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test("procedural cube and sphere have complete indexed vertex streams",()=>{const cube=createCubeGeometry(),sphere=createUvSphereGeometry();assert.deepEqual([cube.positions.length/3,cube.indices.length],[24,36]);assert.ok(sphere.positions.length/3>300);for(const geometry of [cube,sphere]){assert.equal(geometry.normals.length,geometry.positions.length);assert.equal(geometry.texcoords.length,geometry.positions.length/3*2);assert.ok(geometry.indices.every(i=>i>=0&&i<geometry.positions.length/3));}});
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test("every cube triangle has counter-clockwise outward winding",()=>{const g=createCubeGeometry();for(let i=0;i<g.indices.length;i+=3){const ids=g.indices.slice(i,i+3),p=ids.map(id=>g.positions.slice(id*3,id*3+3)),a=p[1].map((v,j)=>v-p[0][j]),b=p[2].map((v,j)=>v-p[0][j]),cross=[a[1]*b[2]-a[2]*b[1],a[2]*b[0]-a[0]*b[2],a[0]*b[1]-a[1]*b[0]],normal=g.normals.slice(ids[0]*3,ids[0]*3+3);assert.ok(cross.reduce((sum,v,j)=>sum+v*normal[j],0)>0)}});
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test("loadouts return fresh deterministic GLBs with one mesh and nine nodes",async()=>{for(const name of ["cubes","spheres"]){const a=await loadDemoLoadout(name),b=await loadDemoLoadout(name);assert.notStrictEqual(a,b);assert.deepEqual(new Uint8Array(a),new Uint8Array(b));const json=parseGlb(a);assert.equal(json.meshes.length,1);assert.equal(json.nodes.length,9);assert.ok(json.nodes.every(n=>n.mesh===0));assert.deepEqual(json.meshes[0].primitives[0].attributes,{POSITION:0,NORMAL:1,TEXCOORD_0:2});assert.equal(json.accessors[3].componentType,5125);}});
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test("PBR gallery is deterministic and covers the default material shader semantics",async()=>{const a=createMaterialGalleryGlb(),b=await loadDemoLoadout("materials");assert.deepEqual(new Uint8Array(a),new Uint8Array(b));const json=parseGlb(a);assert.equal(json.asset.generator,"yawn-pbr-gallery");assert.deepEqual(json.extensionsUsed,["KHR_materials_ior"]);assert.equal(json.materials.length,16);assert.equal(json.nodes.length,16);assert.equal(json.images.length,3);assert.ok(json.images.every(image=>image.mimeType==="image/png"&&image.bufferView!==undefined));assert.ok(json.meshes.every(mesh=>JSON.stringify(mesh.primitives[0].attributes)===JSON.stringify({POSITION:0,NORMAL:1,TEXCOORD_0:2})));assert.deepEqual(json.materials.slice(0,4).map(x=>x.pbrMetallicRoughness.roughnessFactor),[.08,.3,.6,1]);assert.ok(json.materials.slice(0,4).every(x=>x.pbrMetallicRoughness.metallicFactor===0));assert.ok(json.materials.slice(4,8).every(x=>x.pbrMetallicRoughness.metallicFactor===1));assert.deepEqual(json.materials.slice(8,11).map(x=>x.extensions.KHR_materials_ior.ior),[1,1.5,2]);assert.equal(json.materials[11].normalTexture.index,2);assert.equal(json.materials[12].occlusionTexture.index,1);assert.equal(json.materials[13].emissiveTexture.index,0);assert.equal(json.materials[14].alphaMode,"MASK");assert.equal(json.materials[15].doubleSided,true);assert.ok(json.nodes[15].scale[0]<0);assert.equal(loadouts.materials.label,"PBR material gallery");});
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test("the example offers only self-contained procedural scenes",async()=>{const html=await (await import("node:fs/promises")).readFile(new URL("../examples/render-graph-studio/index.html",import.meta.url),"utf8");assert.deepEqual(Object.keys(loadouts),["cubes","spheres","materials"]);for(const id of Object.keys(loadouts))assert.match(html,new RegExp(`<option value="${id}">`));await assert.rejects(loadDemoLoadout("unknown"),RangeError);});
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test("GLB encoder rejects non-finite and out-of-range geometry",()=>{const valid=createCubeGeometry();assert.throws(()=>encodeGeometryGlb({...valid,positions:[...valid.positions.slice(0,-1),NaN]}),/Invalid/);assert.throws(()=>encodeGeometryGlb({...valid,indices:[...valid.indices,0,1,999]}),/Invalid/)});
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