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:
To build the project:
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
On MacOS, the version of Make that ships with the OS (3.81) is not compatible with this makefile, so you'll need to install a modern version of make and use that instead.
For instance, with homebrew:
brew install gmake
Depending on your PATH configuration, you may need to use gmake instead of make when running setup commands.
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.
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