ok really im close now

hack/convert-meshes.ts

@@ -0,0 +1,59 @@
+import chalk from "chalk";
+import { globSync } from "glob";
+
+export const convertMeshes = async () => {
+  const meshes = globSync("src/meshes/*.ply");
+
+  for (const file of meshes) {
+    const ply = await Bun.file(file).text();
+
+    const [header, body] = ply.split("end_header");
+    const colorSize = header.includes("red") ? 4 : 0;
+
+    const values: number[] = [];
+
+    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 [x, y, z, r, g, b, a, u, v] = line.split(" ");
+
+      if (!g) {
+        continue;
+      }
+
+      values.push(
+        parseFloat(x),
+        parseFloat(y),
+        parseFloat(z),
+        1,
+        parseFloat(r),
+        parseFloat(g)
+      );
+
+      if (colorSize > 0) {
+        values.push(parseFloat(b), parseFloat(a), parseFloat(u), parseFloat(v));
+      }
+    }
+
+    const outFile = file.replace(".ply", ".ts");
+    const outString = `
+import { Mesh } from "../renderer/mesh";
+
+// prettier-ignore
+const mesh = new Float32Array(${JSON.stringify(values, null, 2)});
+
+export default new Mesh({ 
+  mesh, 
+  positionSize: 4 * 4, 
+  colorSize: ${colorSize} * 4, 
+  uvSize: 2 * 4,
+});
+`;
+
+    await Bun.write(outFile, outString);
+    console.log(chalk.yellow(`  -> ${file}...`));
+  }
+};