003 fucking RENDERS models YAAAAAAAAA

README.md

@@ -24,19 +24,24 @@ https://art.mekanoe.com
 
 ### Infrastructure
 
-- The "generator" does
+- **Output generation**
 
-  - Generates a work list from .js files within `html`
-  - Creates this README.md file
-  - Creates the index.html file
-  - Creates individual HTML files for each work
+  - Bun renders TypeScript and GLSL to html/
+  - src/public/ is copied to html/
+    - This doubles as an "archival" system to preserve scuffedness
+  - .ply files are converted to JS typed arrays and Mesh objects
+  - .html files (and README.md) are generated from rendered TypeScript main.ts files.
 
-- The platform supplies
-  - Shader types
-  - Primitive objects
-  - A canvas to draw on
-  - WebGL hooks
-  - Helpers, etc
+- **Platform**
+
+  - WebGLApp provides render loop, canvas, and other stuff
+  - Behavior provides automatic registration of WebGLApp events (like Unity MonoBehaviors)
+  - Shader provides GLSL shader tooling
+  - Mesh is a DTO with vertex position, color, UVs, and faces
+  - MeshRenderer sends WebGL instructions for rendering a Mesh object with a Shader object.
+  - Renderable is a container of a Transform and Renderer (like a Unity GameObject)
+  - Transform is a tuplet of a position vec3, rotation quat, and scale vec3; to be used anywhere needed.
+  - Scene is a group of Renderables
 
 ## License
 

hack/build.ts

@@ -11,6 +11,9 @@ mkdirSync("html");
 
 const works = globSync("src/*/main.ts");
 
+console.log(chalk.green`>> Convert meshes ...`);
+await convertMeshes();
+
 console.log(chalk.green`>> Building ...`);
 console.log(chalk.yellow(`   Found ${works.length} works.`));
 console.log(chalk.yellow(`   Running Bun.build()`));
@@ -44,6 +47,3 @@ const { stdout, stderr, exitCode } = Bun.spawnSync([
   "-c",
   "cp -r src/public/* html/",
 ]);
-
-console.log(chalk.green`>> Convert meshes ...`);
-await convertMeshes();

hack/convert-meshes.ts

@@ -1,6 +1,54 @@
 import chalk from "chalk";
 import { globSync } from "glob";
 
+const w = 1;
+
+type Vertex = {
+  position: {
+    x: number;
+    y: number;
+    z: number;
+  };
+  color?: {
+    r: number;
+    g: number;
+    b: number;
+    a: number;
+  };
+  uv?: {
+    u: number;
+    v: number;
+  };
+  normal?: {
+    nx: number;
+    ny: number;
+    nz: number;
+  };
+};
+
+type Face = {
+  a: number;
+  b: number;
+  c: number;
+};
+
+type Triangle = {
+  a: Vertex;
+  b: Vertex;
+  c: Vertex;
+};
+
+// const vertToArray = ({ x, y, z, w, r, g, b, a, u, v }: Vertex): number[] => {
+//   if (!r) return [x, y, z, u, v];
+//   else return [x, y, z, r, g as number, b as number, a as number, u, v];
+// };
+
+// const triangleToArray = (t: Triangle): number[] => [
+//   ...vertToArray(t.a),
+//   ...vertToArray(t.b),
+//   ...vertToArray(t.c),
+// ];
+
 export const convertMeshes = async () => {
   const meshes = globSync("src/meshes/*.ply");
 
@@ -8,8 +56,47 @@ export const convertMeshes = async () => {
     const ply = await Bun.file(file).text();
 
     const [header, body] = ply.split("end_header");
-    const colorSize = header.includes("red") ? 4 : 0;
+
+    const propertyList: [string, "float" | "uchar"][] = [];
+    const vertexConfig = {
+      colors: false,
+      uvs: false,
+      normals: false,
+    };
     const headerLines = header.split("\n");
+
+    for (const property of headerLines.filter((header) =>
+      header.startsWith("property")
+    )) {
+      const [, propType, name] = property.split(" ");
+
+      if (propType === "list") {
+        continue;
+      }
+
+      propertyList.push([name, propType as any]);
+
+      switch (name) {
+        case "red":
+        case "green":
+        case "blue":
+        case "alpha":
+          vertexConfig.colors = true;
+          break;
+        case "nx":
+        case "ny":
+        case "nz":
+          vertexConfig.normals = true;
+          break;
+        case "s":
+        case "t":
+          vertexConfig.uvs = true;
+          break;
+      }
+    }
+
+    console.log({ propertyList });
+
     const vertexCount = Number(
       headerLines
         .find((header) => header.startsWith("element vertex"))
@@ -20,49 +107,152 @@ export const convertMeshes = async () => {
       throw new Error("couldn't get vertex count...");
     }
 
-    const values: number[] = [];
+    const vertexes: Vertex[] = [];
+    const faces: Face[] = [];
 
     for (const line of body.split("\n")) {
-      // line looks like
-      //  x y z r g b a u v
-      // We need to convert it to
-      // x y z 1 r g b a u v
+      const components = line.split(" ");
 
-      const [x, y, z, r, g, b, a, u, v] = line.split(" ");
-
-      if (!g) {
+      if (!components || !components[0]) {
         continue;
       }
 
-      values.push(
-        parseFloat(x),
-        parseFloat(y),
-        parseFloat(z),
-        1,
-        parseFloat(r),
-        parseFloat(g)
-      );
+      // do we only have 4 components?
+      if (components[0] === "3" || components.length === 4) {
+        const [, a, b, c] = components;
 
-      if (colorSize > 0) {
-        values.push(parseFloat(b), parseFloat(a), parseFloat(u), parseFloat(v));
+        // We do??!?! 🥺👉👈
+        faces.push({ a: Number(a), b: Number(b), c: Number(c) });
+
+        continue;
       }
+
+      const vertex: Required<Vertex> = {
+        position: {
+          x: -1,
+          y: -1,
+          z: -1,
+        },
+        color: {
+          r: 0,
+          g: 0,
+          b: 0,
+          a: 255,
+        },
+        normal: {
+          nx: -1,
+          ny: -1,
+          nz: -1,
+        },
+        uv: {
+          u: -1,
+          v: -1,
+        },
+      };
+
+      for (const idx in components) {
+        const component = components[idx];
+        const [propName, propType] = propertyList[idx];
+
+        const p = parser[propType] ?? parseFloat;
+
+        switch (propName) {
+          case "x":
+            vertex.position.x = p(component);
+            break;
+          case "y":
+            vertex.position.y = p(component);
+            break;
+          case "z":
+            vertex.position.z = p(component);
+          case "s":
+            vertex.uv.u = p(component);
+            break;
+          case "t":
+            vertex.uv.v = p(component);
+            break;
+          case "red":
+            vertex.color.r = p(component);
+            break;
+          case "green":
+            vertex.color.g = p(component);
+            break;
+          case "blue":
+            vertex.color.b = p(component);
+            break;
+          case "nx":
+            vertex.normal.nx = p(component);
+            break;
+          case "ny":
+            vertex.normal.ny = p(component);
+            break;
+          case "nz":
+            vertex.normal.nz = p(component);
+            break;
+        }
+      }
+
+      vertexes.push(vertex);
     }
 
+    const positions: number[] = vertexes.flatMap((v) => [
+      v.position.x,
+      v.position.y,
+      v.position.z,
+    ]);
+    const normals: number[] = vertexConfig.normals
+      ? vertexes.flatMap((v: any) => [v.normal.nx, v.normal.ny, v.normal.nz])
+      : [];
+    const colors: number[] = vertexConfig.colors
+      ? vertexes.flatMap((v: any) => [
+          v.color.r,
+          v.color.g,
+          v.color.b,
+          v.color.a,
+        ])
+      : [];
+    const uvs: number[] = vertexConfig.uvs
+      ? vertexes.flatMap((v: any) => [v.uv.u, v.uv.v])
+      : [];
+
+    const facesArray: number[] = faces.flatMap((f) => [f.a, f.b, f.c]);
+
     const outFile = file.replace(".ply", ".ts");
     const outString = `
 import { Mesh } from "../renderer/mesh";
 
 // prettier-ignore
-const mesh = new Float32Array(${JSON.stringify(values)});
+const positions = new Float32Array(${JSON.stringify(positions)});
 
-export default new Mesh({ 
-  mesh, 
-  positionSize: 4, 
-  colorSize: ${colorSize}, 
-  uvSize: 2,
-  vertexCount: ${vertexCount},
-  stride: ${4 + colorSize + 2},
-  name: ${JSON.stringify(file)}
+// prettier-ignore
+const colors = ${
+      vertexConfig.colors ? `new Uint8Array(${JSON.stringify(colors)})` : "null"
+    };
+
+// prettier-ignore
+const uvs = ${
+      vertexConfig.uvs ? `new Float32Array(${JSON.stringify(uvs)})` : "null"
+    };
+
+    
+// prettier-ignore
+const normals = ${
+      vertexConfig.normals
+        ? `new Float32Array(${JSON.stringify(normals)})`
+        : "null"
+    };
+    
+// prettier-ignore
+const faces = new Uint32Array(${JSON.stringify(facesArray)});
+
+export default new Mesh({
+  colors,
+  faces,
+  name: ${JSON.stringify(file)},
+  normals,
+  positions,
+  uvs,
+  vertexCount: ${vertexCount}
 });
 `;
 
@@ -70,3 +260,8 @@ export default new Mesh({
     console.log(chalk.yellow(`  -> ${file}...`));
   }
 };
+
+const parser = {
+  float: (x: string) => parseFloat(x),
+  uchar: (x: string) => Number(x),
+};

hack/templates/README.md.txt

@@ -22,19 +22,24 @@ https://art.mekanoe.com
 
 ### Infrastructure
 
-- The "generator" does
+- **Output generation**
 
-  - Generates a work list from .js files within `html`
-  - Creates this README.md file
-  - Creates the index.html file
-  - Creates individual HTML files for each work
+  - Bun renders TypeScript and GLSL to html/
+  - src/public/ is copied to html/
+    - This doubles as an "archival" system to preserve scuffedness
+  - .ply files are converted to JS typed arrays and Mesh objects
+  - .html files (and README.md) are generated from rendered TypeScript main.ts files.
 
-- The platform supplies
-  - Shader types
-  - Primitive objects
-  - A canvas to draw on
-  - WebGL hooks
-  - Helpers, etc
+- **Platform**
+
+  - WebGLApp provides render loop, canvas, and other stuff
+  - Behavior provides automatic registration of WebGLApp events (like Unity MonoBehaviors)
+  - Shader provides GLSL shader tooling
+  - Mesh is a DTO with vertex position, color, UVs, and faces
+  - MeshRenderer sends WebGL instructions for rendering a Mesh object with a Shader object.
+  - Renderable is a container of a Transform and Renderer (like a Unity GameObject)
+  - Transform is a tuplet of a position vec3, rotation quat, and scale vec3; to be used anywhere needed.
+  - Scene is a group of Renderables
 
 ## License
 

package.json

@@ -4,13 +4,14 @@
   "main": "./hack/build.ts",
   "scripts": {
     "build": "bun $BUNFLAGS .",
-    "build:watch": "BUNFLAGS=--watch bun run build",
+    "build:watch": "nodemon -e ts,js,frag,vert,glsl,ply",
     "serve": "serve ./html",
     "dev": "run-p serve build:watch"
   },
   "devDependencies": {
     "bun-types": "latest",
     "npm-run-all2": "^6.1.1",
+    "nodemon": "^3.0.1",
     "prettier": "^3.0.3"
   },
   "peerDependencies": {
@@ -23,5 +24,14 @@
     "glob": "^10.3.10",
     "serve": "^14.2.1",
     "typescript": "^5.2.2"
+  },
+  "nodemonConfig": {
+    "ignore": [
+      "html/",
+      "README.md",
+      "src/meshes/*.ts"
+    ],
+    "delay": 1000,
+    "exec": "bun run . --"
   }
 }

src/001-platform-provenance/main.ts

@@ -1,20 +1,20 @@
-// This one is archived.
+// // This one is archived.
 
-import { Shader } from "./shader";
-import { BasicPlane } from "./basic-plane";
-import { App } from "./app";
-import fragment from "./fragment.glsl";
-import vertex from "./vertex.glsl";
+// import { Shader } from "./shader";
+// import { BasicPlane } from "./basic-plane";
+// import { App } from "./app";
+// import fragment from "./fragment.glsl";
+// import vertex from "./vertex.glsl";
 
-const app = new App({ fov: 20 });
-const gl = app.gl;
+// const app = new App({ fov: 20 });
+// const gl = app.gl;
 
-const shader = new Shader(app)
-  .attach(gl.VERTEX_SHADER, vertex)
-  .attach(gl.FRAGMENT_SHADER, fragment)
-  .link();
+// const shader = new Shader(app)
+//   .attach(gl.VERTEX_SHADER, vertex)
+//   .attach(gl.FRAGMENT_SHADER, fragment)
+//   .link();
 
-const plane = new BasicPlane(app);
-plane.attachShader(shader);
+// const plane = new BasicPlane(app);
+// plane.attachShader(shader);
 
-app.loop();
+// app.loop();

src/002-webgl-engine/main.ts

@@ -1,42 +1,43 @@
-// This one is archived.
-import { MeshRenderer } from "../renderer/mesh-renderer";
-import plane from "../meshes/plane";
-import { WebGLApp } from "../renderer/webgl";
-import { Renderable } from "../renderer/renderable";
-import { Transform } from "../renderer/transform";
-import { uvRainbow } from "../common-shaders/uv-rainbow";
-import { quat } from "gl-matrix";
-import torus from "../meshes/torus";
+// // This one is archived.
 
-const app = new WebGLApp({ fov: 45 });
+// import { MeshRenderer } from "../renderer/mesh-renderer";
+// import plane from "../meshes/plane";
+// import { WebGLApp } from "../renderer/webgl";
+// import { Renderable } from "../renderer/renderable";
+// import { Transform } from "../renderer/transform";
+// import { uvRainbow } from "../common-shaders/uv-rainbow";
+// import { quat } from "gl-matrix";
+// import torus from "../meshes/torus";
 
-const camera = new Transform(
-  [0, 0, -6],
-  quat.fromEuler(quat.create(), 15, 0, 0)
-);
+// const app = new WebGLApp({ fov: 45 });
 
-const modelTransform = new Transform([0, 0, 4]);
+// const camera = new Transform(
+//   [0, 0, -6],
+//   quat.fromEuler(quat.create(), 15, 0, 0)
+// );
 
-app.onUpdate((time: number) => {
-  const cameraStride = 3;
-  const x = Math.sin(time * 0.0001) * (cameraStride * 2 - cameraStride * 0.5);
+// const modelTransform = new Transform([0, 0, 4]);
 
-  camera.rotation = quat.fromEuler(quat.create(), x, 0, 0);
-  // modelTransform.rotation = quat.fromEuler(quat.create(), x, 0, 0);
-});
+// app.onUpdate((time: number) => {
+//   const cameraStride = 3;
+//   const x = Math.sin(time * 0.0001) * (cameraStride * 2 - cameraStride * 0.5);
 
-new Renderable(
-  app,
-  modelTransform,
-  new MeshRenderer(app, torus, uvRainbow(app), camera, {
-    drawMode: app.gl.TRIANGLE_FAN,
-  })
-);
+//   camera.rotation = quat.fromEuler(quat.create(), x, 0, 0);
+//   // modelTransform.rotation = quat.fromEuler(quat.create(), x, 0, 0);
+// });
 
 // new Renderable(
 //   app,
-//   new Transform([1, 0, 0]),
-//   new MeshRenderer(app, plane, uvRainbow(app))
+//   modelTransform,
+//   new MeshRenderer(app, torus, uvRainbow(app), camera, {
+//     drawMode: app.gl.TRIANGLE_FAN,
+//   })
 // );
 
-app.start();
+// // new Renderable(
+// //   app,
+// //   new Transform([1, 0, 0]),
+// //   new MeshRenderer(app, plane, uvRainbow(app))
+// // );
+
+// app.start();

src/003-scene/main.ts

@@ -4,13 +4,27 @@ import { Renderable } from "../renderer/renderable";
 import { Transform } from "../renderer/transform";
 import torus from "../meshes/torus";
 import { errorShader } from "../common-shaders/error";
+import plane from "../meshes/plane";
+import { uvRainbow } from "../common-shaders/uv-rainbow";
+import uvsphere from "../meshes/uvsphere";
+import { quat } from "gl-matrix";
+import trianglething from "../meshes/trianglething";
+import teapot from "../meshes/teapot";
 
 const app = new WebGLApp({ fov: 45 });
 
+const camera = new Transform([0, -2, -6]);
+
 new Renderable(
   app,
   new Transform(),
-  new MeshRenderer(app, torus, errorShader(app))
+  new MeshRenderer(app, trianglething, uvRainbow(app), camera).configure({})
 );
 
+// new Renderable(
+//   app,
+//   new Transform(),
+//   new MeshRenderer(app, torus, uvRainbow(app), camera).configure({})
+// );
+
 app.start();

src/common-shaders/uv-rainbow.frag

@@ -1,10 +1,12 @@
+#version 300 es
 precision highp float;
 
 uniform float uTime;
 uniform float uSinTime;
 uniform float uCosTime;
 
-varying highp vec2 vTextureCoord;
+in vec2 vTextureCoord;
+out vec4 fragColor;
 
 vec3 rgb2hsv(vec3 c) {
   vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
@@ -30,6 +32,6 @@ void main() {
   hsv.z = 1.0;
   vec3 rgb = hsv2rgb(hsv);
 
-  gl_FragColor = vec4(rgb, 1.0);
-  gl_FragColor = clamp(gl_FragColor, 0.0, 1.0);
+  fragColor = vec4(rgb, 1.0);
+  fragColor = clamp(fragColor, 0.0, 1.0);
 }

src/common-shaders/uv-rainbow.vert

@@ -1,10 +1,11 @@
-attribute vec4 aVertexPosition;
-attribute vec2 aTextureCoord;
+#version 300 es
+layout(location = 0) in vec4 aVertexPosition;
+layout(location = 1) in vec2 aTextureCoord;
 
 uniform mat4 uModelViewMatrix;
 uniform mat4 uProjectionMatrix;
 
-varying highp vec2 vTextureCoord;
+out vec2 vTextureCoord;
 
 void main() {
   gl_Position = uProjectionMatrix * uModelViewMatrix * aVertexPosition;

src/meshes/plane.ply

@@ -0,0 +1,18 @@
+ply
+format ascii 1.0
+comment Created in Blender version 3.6.4
+element vertex 4
+property float x
+property float y
+property float z
+property float s
+property float t
+element face 2
+property list uchar uint vertex_indices
+end_header
+1 -1 0 1 0
+-1 1 0 0 1
+-1 -1 0 0 0
+1 1 0 1 1
+3 0 1 2
+3 0 3 1

src/meshes/plane.ts

@@ -1,20 +1,28 @@
+
 import { Mesh } from "../renderer/mesh";
 
 // prettier-ignore
-const mesh = new Float32Array([
-  // f4 position,   f4 color,     f2 uv
-  -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,
-]);
+const positions = new Float32Array([1,-1,0,-1,1,0,-1,-1,0,1,1,0]);
+
+// prettier-ignore
+const colors = null;
+
+// prettier-ignore
+const uvs = new Float32Array([1,0,0,1,0,0,1,1]);
+
+    
+// prettier-ignore
+const normals = null;
+    
+// prettier-ignore
+const faces = new Uint32Array([0,1,2,0,3,1]);
 
 export default new Mesh({
-  mesh,
-  positionSize: 4,
-  colorSize: 4,
-  uvSize: 2,
-  vertexCount: 4,
-  stride: 10,
-  name: "plane",
+  colors,
+  faces,
+  name: "src/meshes/plane.ply",
+  normals,
+  positions,
+  uvs,
+  vertexCount: 4
 });

src/meshes/trianglething.ply

@@ -0,0 +1,76 @@
+ply
+format ascii 1.0
+comment Created in Blender version 3.6.4
+element vertex 31
+property float x
+property float y
+property float z
+property float nx
+property float ny
+property float nz
+property uchar red
+property uchar green
+property uchar blue
+property uchar alpha
+property float s
+property float t
+element face 26
+property list uchar uint vertex_indices
+end_header
+0 2.609 0 0 -1 8.3803394e-07 0 1 255 255 0.00013659838 0.8180941
+-0.368004 2.9959495 0.50652 -0.5257306 -0.44721383 0.723607 0 1 255 255 0.15755458 0.7272099
+-0.595448 2.9959495 -0.19346951 -0.8506533 -0.44721213 -0.2763879 0 1 255 255 0.1575546 0.9089782
+0 2.609 0 0 -1 8.3803394e-07 0 1 255 255 0.00013659043 0.6363257
+0.368004 2.9959495 0.50652 0.5257306 -0.4472139 0.723607 0 1 255 255 0.15755458 0.54544157
+0 2.609 0 0 -1 8.3803394e-07 0 1 255 255 0.0001365666 0.09102075
+-0.595448 2.9959495 -0.19346951 -0.8506533 -0.44721213 -0.2763879 0 1 255 255 0.15755455 0.00013656964
+0 2.9959495 -0.6260975 0 -0.44721153 -0.89442825 0 1 255 255 0.15755457 0.18190491
+0 2.609 0 0 -1 8.3803394e-07 0 1 255 255 0.00013657454 0.2727891
+0.595448 2.9959495 -0.19346951 0.8506533 -0.4472122 -0.27638793 0 1 255 255 0.15755457 0.36367324
+0 2.609 0 0 -1 8.3803394e-07 0 1 255 255 0.00013658249 0.45455742
+0 3.6220505 0.6260975 0 0.44721153 0.89442825 0 1 255 255 0.31497157 0.6363257
+-0.595448 3.6220505 0.19346951 -0.8506533 0.44721216 0.27638793 0 1 255 255 0.31497157 0.8180941
+-0.368004 3.6220505 -0.50652 -0.5257306 0.4472139 -0.72360694 0 1 255 255 0.31497154 0.09102073
+0.368004 3.6220505 -0.50652 0.5257306 0.4472139 -0.72360694 0 1 255 255 0.31497154 0.27278906
+0.595448 3.6220505 0.19346951 0.85065323 0.4472122 0.2763879 0 1 255 255 0.31497154 0.45455742
+-0.368004 3.6220505 -0.50652 -0.5257306 0.4472139 -0.72360694 0 1 255 255 0.31497157 0.9998634
+0 4.0090003 0 0 1 -8.165459e-07 0 1 255 255 0.47238955 0.72720987
+0 4.0090003 0 0 1 -8.165459e-07 0 1 255 255 0.47238958 0.9089782
+0 4.0090003 0 0 1 -8.165459e-07 0 1 255 255 0.47238955 0.1819049
+0 4.0090003 0 0 1 -8.165459e-07 0 1 255 255 0.47238955 0.36367324
+0 4.0090003 0 0 1 -8.165459e-07 0 1 255 255 0.47238955 0.54544157
+1 0 0 0.8999471 -0.43599886 2.4163015e-07 0 1 255 255 0.8119813 0.33945516
+0 2.5 0 -5.150958e-08 1 0 0 1 255 255 0.642322 0.16979587
+-4.3711392e-08 0 1 -3.0203772e-08 -0.4359989 0.8999472 0 1 255 255 0.8119813 0.00013659486
+-1 0 -8.7422784e-08 -0.8999471 -0.4359989 -2.4291313e-07 0 1 255 255 0.47266275 0.00013660162
+-4.3711392e-08 0 1 -3.0203772e-08 -0.4359989 0.8999472 0 1 255 255 0.81198126 0.6790469
+1.19248815e-08 0 -1 0 -0.43599886 -0.8999471 0 1 255 255 0.47266275 0.33972836
+1 0 0 0.8999471 -0.43599886 2.4163015e-07 0 1 255 255 0.47266272 0.6790469
+1.19248815e-08 0 -1 0 -0.43599886 -0.8999471 0 1 255 255 0.47266275 0.33945513
+-1 0 -8.7422784e-08 -0.8999471 -0.4359989 -2.4291313e-07 0 1 255 255 0.81198126 0.3397284
+3 0 1 2
+3 1 3 4
+3 5 6 7
+3 8 7 9
+3 10 9 4
+3 1 4 11
+3 2 1 12
+3 7 6 13
+3 9 7 14
+3 4 9 15
+3 1 11 12
+3 2 12 16
+3 7 13 14
+3 9 14 15
+3 4 15 11
+3 12 11 17
+3 16 12 18
+3 14 13 19
+3 15 14 20
+3 11 15 21
+3 22 23 24
+3 24 23 25
+3 26 27 28
+3 25 23 29
+3 29 23 22
+3 26 30 27

src/meshes/trianglething.ts

@@ -0,0 +1,28 @@
+
+import { Mesh } from "../renderer/mesh";
+
+// prettier-ignore
+const positions = new Float32Array([0,2.609,0,-0.368004,2.9959495,0.50652,-0.595448,2.9959495,-0.19346951,0,2.609,0,0.368004,2.9959495,0.50652,0,2.609,0,-0.595448,2.9959495,-0.19346951,0,2.9959495,-0.6260975,0,2.609,0,0.595448,2.9959495,-0.19346951,0,2.609,0,0,3.6220505,0.6260975,-0.595448,3.6220505,0.19346951,-0.368004,3.6220505,-0.50652,0.368004,3.6220505,-0.50652,0.595448,3.6220505,0.19346951,-0.368004,3.6220505,-0.50652,0,4.0090003,0,0,4.0090003,0,0,4.0090003,0,0,4.0090003,0,0,4.0090003,0,1,0,0,0,2.5,0,-4.3711392e-8,0,1,-1,0,-8.7422784e-8,-4.3711392e-8,0,1,1.19248815e-8,0,-1,1,0,0,1.19248815e-8,0,-1,-1,0,-8.7422784e-8]);
+
+// prettier-ignore
+const colors = new Uint8Array([0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255,0,1,255,255]);
+
+// prettier-ignore
+const uvs = new Float32Array([0.00013659838,0.8180941,0.15755458,0.7272099,0.1575546,0.9089782,0.00013659043,0.6363257,0.15755458,0.54544157,0.0001365666,0.09102075,0.15755455,0.00013656964,0.15755457,0.18190491,0.00013657454,0.2727891,0.15755457,0.36367324,0.00013658249,0.45455742,0.31497157,0.6363257,0.31497157,0.8180941,0.31497154,0.09102073,0.31497154,0.27278906,0.31497154,0.45455742,0.31497157,0.9998634,0.47238955,0.72720987,0.47238958,0.9089782,0.47238955,0.1819049,0.47238955,0.36367324,0.47238955,0.54544157,0.8119813,0.33945516,0.642322,0.16979587,0.8119813,0.00013659486,0.47266275,0.00013660162,0.81198126,0.6790469,0.47266275,0.33972836,0.47266272,0.6790469,0.47266275,0.33945513,0.81198126,0.3397284]);
+
+    
+// prettier-ignore
+const normals = new Float32Array([0,-1,8.3803394e-7,-0.5257306,-0.44721383,0.723607,-0.8506533,-0.44721213,-0.2763879,0,-1,8.3803394e-7,0.5257306,-0.4472139,0.723607,0,-1,8.3803394e-7,-0.8506533,-0.44721213,-0.2763879,0,-0.44721153,-0.89442825,0,-1,8.3803394e-7,0.8506533,-0.4472122,-0.27638793,0,-1,8.3803394e-7,0,0.44721153,0.89442825,-0.8506533,0.44721216,0.27638793,-0.5257306,0.4472139,-0.72360694,0.5257306,0.4472139,-0.72360694,0.85065323,0.4472122,0.2763879,-0.5257306,0.4472139,-0.72360694,0,1,-8.165459e-7,0,1,-8.165459e-7,0,1,-8.165459e-7,0,1,-8.165459e-7,0,1,-8.165459e-7,0.8999471,-0.43599886,2.4163015e-7,-5.150958e-8,1,0,-3.0203772e-8,-0.4359989,0.8999472,-0.8999471,-0.4359989,-2.4291313e-7,-3.0203772e-8,-0.4359989,0.8999472,0,-0.43599886,-0.8999471,0.8999471,-0.43599886,2.4163015e-7,0,-0.43599886,-0.8999471,-0.8999471,-0.4359989,-2.4291313e-7]);
+    
+// prettier-ignore
+const faces = new Uint32Array([0,1,2,1,3,4,5,6,7,8,7,9,10,9,4,1,4,11,2,1,12,7,6,13,9,7,14,4,9,15,1,11,12,2,12,16,7,13,14,9,14,15,4,15,11,12,11,17,16,12,18,14,13,19,15,14,20,11,15,21,22,23,24,24,23,25,26,27,28,25,23,29,29,23,22,26,30,27]);
+
+export default new Mesh({
+  colors,
+  faces,
+  name: "src/meshes/trianglething.ply",
+  normals,
+  positions,
+  uvs,
+  vertexCount: 31
+});

src/renderer/behavior.ts

@@ -5,10 +5,12 @@ export abstract class Behavior {
   onBeforeUpdate?(...args: any[]): void;
   onUpdate?(...args: any[]): void;
   onAfterUpdate?(...args: any[]): void;
+  onDraw?(...args: any[]): void;
   constructor(public app: WebGLApp) {
     this.onStart && app.onStart(this.onStart.bind(this));
     this.onUpdate && app.onUpdate(this.onUpdate.bind(this));
     this.onAfterUpdate && app.onAfterUpdate(this.onAfterUpdate.bind(this));
     this.onBeforeUpdate && app.onBeforeUpdate(this.onBeforeUpdate.bind(this));
+    this.onDraw && app.onDraw(this.onDraw.bind(this));
   }
 }

src/renderer/mesh-renderer.ts

@@ -4,16 +4,22 @@ import { Mesh } from "./mesh";
 import { Shader } from "./shader";
 import { WebGLApp } from "./webgl";
 import { Transform } from "./transform";
-import { errorShader } from "../common-shaders/error";
 
 export type MeshRendererConfig = {
   drawMode?: number;
+  cullMode?: number;
 };
 
 export class MeshRenderer extends Behavior {
   private modelMatrix = mat4.create();
   private projectionMatrix = mat4.create();
-  private _meshBuffer?: WebGLBuffer;
+  private buffers: {
+    position?: WebGLBuffer;
+    uv?: WebGLBuffer;
+    normal?: WebGLBuffer;
+    color?: WebGLBuffer;
+    faces?: WebGLBuffer;
+  } = {};
 
   constructor(
     public app: WebGLApp,
@@ -25,106 +31,130 @@ export class MeshRenderer extends Behavior {
     super(app);
   }
 
-  get meshBuffer() {
-    if (this._meshBuffer) {
-      return this._meshBuffer;
-    }
-
-    throw new Error("mesh buffer not ready");
+  configure(config: MeshRendererConfig) {
+    this.config = config;
+    return this;
   }
 
-  initializeMeshBuffer() {
+  makeBuffer(data: TypedArray, target: number = 34962) {
     const gl = this.app.gl;
     const buffer = gl.createBuffer();
     if (!buffer) {
-      throw new Error("failed to create mesh buffer");
+      throw new Error("failed to create a buffer");
     }
-    gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
-    gl.bufferData(gl.ARRAY_BUFFER, this.mesh.config.mesh, gl.STATIC_DRAW);
 
-    this._meshBuffer = buffer;
+    gl.bindBuffer(target, buffer);
+    gl.bufferData(target, data, gl.STATIC_DRAW);
+    gl.bindBuffer(target, null);
+
+    return buffer;
   }
 
-  initializeAttributes() {
-    const gl = this.app.gl;
-    gl.bindBuffer(gl.ARRAY_BUFFER, this.meshBuffer);
+  initializeBuffers() {
+    this.buffers.faces = this.makeBuffer(
+      this.mesh.config.faces,
+      this.app.gl.ELEMENT_ARRAY_BUFFER
+    );
 
-    const positionLocation = this.shader.attrib("aVertexPosition");
-    if (positionLocation !== -1) {
+    this.buffers.position = this.makeBuffer(this.mesh.config.positions);
+    this.bindAttrib(this.buffers.position, 0, 3, this.app.gl.FLOAT);
+
+    if (this.mesh.config.normals) {
+      this.buffers.normal = this.makeBuffer(this.mesh.config.normals);
+      this.bindAttrib(
+        this.buffers.normal,
+        "aVertexNormals",
+        3,
+        this.app.gl.FLOAT,
+        true
+      );
+    }
+
+    if (this.mesh.config.colors) {
+      this.buffers.color = this.makeBuffer(this.mesh.config.colors);
+      this.bindAttrib(
+        this.buffers.color,
+        "aVertexColors",
+        4,
+        this.app.gl.UNSIGNED_BYTE
+      );
+    }
+
+    if (this.mesh.config.uvs) {
+      this.buffers.uv = this.makeBuffer(this.mesh.config.uvs);
+      this.bindAttrib(this.buffers.uv, 1, 2, this.app.gl.FLOAT);
+    }
+  }
+
+  bindAttrib(
+    buffer: WebGLBuffer,
+    attribute: string | number,
+    elements: number,
+    glType: number,
+    normalized: boolean = false
+  ) {
+    const gl = this.app.gl;
+    gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
+
+    const attributePosition = Number.isSafeInteger(attribute)
+      ? (attribute as number)
+      : this.shader.attrib(attribute as string);
+    if (attributePosition !== -1) {
       gl.vertexAttribPointer(
-        positionLocation,
-        this.mesh.config.positionSize,
-        gl.FLOAT,
-        false,
-        4 * this.mesh.config.stride,
+        attributePosition,
+        elements,
+        glType,
+        normalized,
+        0,
         0
       );
-      gl.enableVertexAttribArray(positionLocation);
-      this.shader.bindAttrib(positionLocation, "aVertexPosition");
+      gl.enableVertexAttribArray(attributePosition);
     }
 
-    if (this.mesh.config.colorSize !== 0) {
-      const colorLocation = this.shader.attrib("aVertexColor");
-      if (colorLocation !== -1) {
-        gl.vertexAttribPointer(
-          colorLocation,
-          this.mesh.config.colorSize,
-          gl.FLOAT,
-          false,
-          4 * this.mesh.config.stride,
-          4 * this.mesh.config.positionSize
-        );
-        gl.enableVertexAttribArray(colorLocation);
-        this.shader.bindAttrib(colorLocation, "aVertexColor");
-      }
-    }
-
-    const uvLocation = this.shader.attrib("aTextureCoord");
-    if (uvLocation !== -1) {
-      gl.vertexAttribPointer(
-        uvLocation,
-        this.mesh.config.uvSize,
-        gl.FLOAT,
-        false,
-        4 * this.mesh.config.stride,
-        4 * (this.mesh.config.positionSize + this.mesh.config.colorSize)
-      );
-      gl.enableVertexAttribArray(uvLocation);
-      this.shader.bindAttrib(uvLocation, "aTextureCoord");
-    }
+    gl.bindBuffer(gl.ARRAY_BUFFER, null);
   }
 
   onStart() {
     mat4.perspective(
       this.projectionMatrix,
       this.app.config.fov || 45,
-      this.app.canvas.width / this.app.canvas.height,
+      this.app.aspect,
       this.app.config.zNear || 0.1,
       this.app.config.zFar || 100
     );
 
     this.shader.compile();
-    this.initializeMeshBuffer();
-    this.initializeAttributes();
+    this.initializeBuffers();
     this.shader.link();
   }
 
   onRenderableUpdate(time: number, transform: Transform) {
     const gl = this.app.gl;
+
+    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.buffers.faces || null);
+    gl.bindBuffer(gl.ARRAY_BUFFER, this.buffers.position || null);
+
     this.shader.use();
-    gl.bindBuffer(gl.ARRAY_BUFFER, this.meshBuffer);
+
     this.shader.setupUniforms(
       time,
       this.projectionMatrix,
       transform,
       this.camera
     );
-    gl.drawArrays(
-      this.config.drawMode ?? gl.TRIANGLE_STRIP,
-      0,
-      this.mesh.config.vertexCount
+
+    gl.drawElements(
+      this.config.drawMode ?? gl.TRIANGLES,
+      this.mesh.config.faces.length,
+      gl.UNSIGNED_INT,
+      0
     );
 
+    // gl.drawArrays(
+    //   0,
+    //   this.mesh.config.vertexCount
+    // );
+
     const err = gl.getError();
     if (err !== 0) {
       console.log({ err });

src/renderer/mesh.ts

@@ -1,11 +1,11 @@
 export type MeshConfig = {
-  mesh: Float32Array;
-  positionSize: number;
-  colorSize: number;
-  uvSize: number;
-  vertexCount: number;
-  stride: number;
+  colors: Uint8Array | null;
+  faces: Uint32Array;
   name: string;
+  normals: Float32Array | null;
+  positions: Float32Array;
+  uvs: Float32Array | null;
+  vertexCount: number;
 };
 
 export class Mesh {

src/renderer/renderable.ts

@@ -12,7 +12,7 @@ export class Renderable extends Behavior {
     super(app);
   }
 
-  onUpdate(time: number) {
+  onDraw(time: number) {
     this.renderer.onRenderableUpdate(time, this.transform);
   }
 }

src/renderer/shader.ts

@@ -68,7 +68,6 @@ export class Shader {
     const gl = this.gl;
     this.attach(gl.FRAGMENT_SHADER, this.fragmentCode);
     this.attach(gl.VERTEX_SHADER, this.vertexCode);
-    this.link();
   }
 
   link() {
@@ -100,6 +99,9 @@ export class Shader {
     model: Transform,
     view: Transform
   ) {
+    const viewMatrix = view.toMat4();
+    mat4.invert(viewMatrix, viewMatrix);
+
     const { gl } = this._app as WebGLApp;
     gl.useProgram(this._program as WebGLProgram);
     gl.uniformMatrix4fv(this.uniform("uProjectionMatrix"), false, projection);

src/renderer/transform.ts

@@ -7,12 +7,19 @@ export class Transform {
     public scale = vec3.fromValues(1, 1, 1)
   ) {}
 
+  rotateEuler(x: number, y: number, z: number) {
+    quat.fromEuler(this.rotation, x, y, z);
+    return this;
+  }
+
   toMat4() {
-    return mat4.fromRotationTranslationScale(
-      mat4.create(),
+    const mat = mat4.create();
+    mat4.fromRotationTranslationScale(
+      mat,
       this.rotation,
       this.position,
       this.scale
     );
+    return mat;
   }
 }

src/renderer/webgl.ts

@@ -19,11 +19,13 @@ export class WebGLApp {
     onAfterUpdate: RenderHandle[];
     onUpdate: RenderHandle[];
     onStart: RenderHandle[];
+    onDraw: RenderHandle[];
   } = {
     onBeforeUpdate: [],
     onAfterUpdate: [],
     onUpdate: [],
     onStart: [],
+    onDraw: [],
   };
 
   constructor(public config: WebGPUAppConfig = {}) {
@@ -36,7 +38,10 @@ export class WebGLApp {
       if (!context) {
         throw new Error("Canvas was unable to get a webgl2 context");
       }
-      this.gl = context;
+      const gl = (this.gl = context);
+      gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
+
+      // this.gl.getExtension("OES_element_index_uint"); // default
 
       if (location.search.includes("telemetry")) {
         this.telemetry = new Telemetry(this);
@@ -53,6 +58,10 @@ export class WebGLApp {
     }
   }
 
+  get aspect() {
+    return this.canvas.clientWidth / this.canvas.clientHeight;
+  }
+
   clear() {
     const gl = this.gl;
     gl.clearColor(0.0, 0.0, 0.0, 1.0); // Clear to black, fully opaque
@@ -78,16 +87,16 @@ export class WebGLApp {
     this.registry.onStart.push(handle);
   }
 
-  doUpdate(time: number) {
-    // this.jobsToSubmitThisFrame = [];
+  onDraw(handle: RenderHandle) {
+    this.registry.onDraw.push(handle);
+  }
 
+  doUpdate(time: number) {
     this.registry.onBeforeUpdate.forEach((handle) => handle(time, this));
     this.registry.onUpdate.forEach((handle) => handle(time, this));
     this.registry.onAfterUpdate.forEach((handle) => handle(time, this));
 
-    // if (this.jobsToSubmitThisFrame.length !== 0) {
-    //   this.device.queue.submit(this.jobsToSubmitThisFrame);
-    // }
+    this.registry.onDraw.forEach((handle) => handle(time, this));
   }
 
   doStart(time: number = 0) {
@@ -96,15 +105,11 @@ export class WebGLApp {
   }
 
   async oneShot(time: number = 0) {
-    // await this.awaitRendererReady();
-
     this.doStart(time);
     this.doUpdate(time);
   }
 
   async start() {
-    // await this.awaitRendererReady();
-
     this.doStart();
 
     const run = (time: number) => {
@@ -113,8 +118,4 @@ export class WebGLApp {
     };
     requestAnimationFrame(run);
   }
-
-  // commit(commandEncoder: GPUCommandBuffer) {
-  //   this.jobsToSubmitThisFrame.push(commandEncoder);
-  // }
 }