$ show EvergineTeam/WebGPU.NET
WebGPU.NET is a .NET binding library for the WebGPU API, specifically targeting WebAssembly via Blazor. It provides a low-level P/Invoke wrapper generated from Emscripten's WebGPU C header, enabling GPU compute and rendering in browser-based .NET applications. The repository includes a code generator (WebGPUGen) that parses the C header using CppAst and emits C# structs, enums, handles, delegates, and P/Invoke commands. The generated library is packaged as a NuGet package (Evergine.Bindings.WebGPU) with MSBuild integration for native WebGPU support. A Blazor WebAssembly sample (HelloTriangleWasm) demonstrates basic triangle rendering using the deprecated WGPUSwapChain API. The project is part of the Evergine ecosystem and follows the organization's binding conventions, with CI/CD pipelines and a binding manifest. While the core library is functional and the generator is effective, there are signs of technical drift: the sample uses a deprecated API, the generator has hardcoded paths and a typo, and the binding is tightly coupled to a specific Emscripten version. The repository is maintained but not actively evolving, with recent scope reduction (removal of non-browser support).
The LLM identified 3 files worth highlighting for reuse:
A custom struct wrapping a 4-byte uint to represent the C WGPUBool type, with implicit conversions to/from C# bool. This solves the marshaling mismatch between C's 4-byte bool and .NET's 1-byte bool, ensuring correct interop. The pattern is self-contained and reusable for any P/Invoke binding that needs to handle non-standard bool sizes.
A JavaScript shim that pre-initializes the WebGPU device by calling navigator.gpu.requestDevice() and storing it in Module.preinitializedWebGPUDevice before Blazor starts. This ensures the WebGPU device is available synchronously when the .NET code requests it, avoiding async initialization issues. The script is small, self-contained, and can be reused in any Blazor WebAssembly project that uses WebGPU.
An MSBuild targets file that automatically injects the necessary emcc flags (-s USE_WEBGPU) and a native file reference (wgpu_native.c) for the browser-wasm runtime identifier when the NuGet package is consumed. This enables seamless integration of native WebGPU support in Blazor WebAssembly projects without manual configuration. The pattern is reusable for any .NET library that needs to include native WebAssembly dependencies.