twgsl

twgsl (from "to WGSL") is a small "adapter" layer exposing the SPIR-V to WGSL transpilation capabilities of Google's Tint library to JavaScript.

Building twgsl

I recommend building from a Linux VM set up explicitly for this purpose.

1. Set up Emscripten, making sure to add its tools to your path.
2. Set up Chrome Depot Tools, making sure to add the tools to your path.
3. Clone twgsl and download the Tint submodule.

   git clone https://github.com/BabylonJS/twgsl.git
   cd twgsl
   git submodule update --init --recursive
   

4. Set up the Tint repository to build.

   cd Dependencies/Tint
   cp standalone.gclient .gclient
   gclient sync
   

5. Create a build folder outside the twgsl folder (assumed in this example to be adjacent), then configure cmake using Emscripten's CMake wrapper.

   mkdir twgsl_build
   cd twgsl_build
   emcmake cmake ../twgsl
   

6. Build the twgsl target using Emscripten's Make wrapper.

   emmake make twgsl
   

   Significant optimizations are turned on, so this build may take a very long time.