A full port of OpenSCAD to WASM.
This project cross compiles all of the project dependencies and created a headless OpenSCAD WASM module.
Make sure that you have the following installed:
- Make
- Docker
- Deno
- lzip (might be missing on some distros)
To build the project:
make all
Or for specific steps:
# Generate the library files
make libs
# Build the project
make build
# Build the project in debug mode
make ENV=Debug build
There is an example project in the example folder. Run it using:
cd example
deno run --allow-net --allow-read server.ts
# or
make example
There are also automated tests that can be run using:
cd tests
deno test --allow-read --allow-write
# or
make test
The project is an ES6 module. Simply import the module:
<html>
<head></head>
<body>
<script type="module">
import OpenSCAD from "./openscad.js";
// OPTIONAL: add fonts to the FS
import { addFonts } from "./openscad.fonts.js";
// OPTIONAL: add MCAD library to the FS
import { addMCAD } from "./openscad.mcad.js";
const filename = "cube.stl";
// Instantiate the application
const instance = await OpenSCAD({noInitialRun: true});
// Write a file to the filesystem
instance.FS.writeFile("/input.scad", `cube(10);`); // OpenSCAD script to generate a 10mm cube
// Run like a command-line program with arguments
instance.callMain(["/input.scad", "--enable=manifold", "-o", filename]); // manifold is faster at rendering
// Read the output 3D-model into a JS byte-array
const output = instance.FS.readFile("/"+filename);
// Generate a link to output 3D-model and download the output STL file
const link = document.createElement("a");
link.href = URL.createObjectURL(
new Blob([output], { type: "application/octet-stream" }), null);
link.download = filename;
document.body.append(link);
link.click();
link.remove();
</script>
</body>
</html>For more information on reading and writing files check out the Emscripten File System API.