C# bindings for the Fidget implicit modeling library.
Fidget is a library of infrastructure and algorithms for implicit surfaces, powered by bytecode evaluation and JIT compilation. This package provides .NET bindings via the C API (fidget-capi).
dotnet add package FidgetThe NuGet package includes native binaries for:
win-x64linux-x64osx-x64osx-arm64
The correct native library for your platform is automatically copied to the output directory at build time.
using Fidget;
// Create a context for building math expressions
using var ctx = new Context();
var x = ctx.X;
var y = ctx.Y;
var z = ctx.Z;
// Build a sphere SDF: sqrt(x² + y² + z²) - 1.0
var r2 = ctx.Add(ctx.Add(ctx.Square(x), ctx.Square(y)), ctx.Square(z));
var sphere = ctx.Sub(ctx.Sqrt(r2), ctx.Constant(1.0));
// Compile into a shape
using var shape = new Shape(ctx, sphere);
// Evaluate at a point
using var tape = shape.CreatePointTape();
using var eval = new PointEvaluator();
float value = eval.Evaluate(tape, 0.5f, 0.0f, 0.0f);
Console.WriteLine(value); // negative = inside, positive = outside
// Generate a mesh
using var mesh = new Mesh(shape, depth: 8);
Console.WriteLine($"Triangles: {mesh.TriangleCount}");Comprehensive documentation is available in English and Chinese:
| Chapter | EN | ZH |
|---|---|---|
| Introduction to Implicit Modeling | en | zh |
| Getting Started | en | zh |
| Context & Node API Reference | en | zh |
| Building Implicit Shapes | en | zh |
| Evaluation & Debugging | en | zh |
| Mesh Generation | en | zh |
| 2D Rendering | en | zh |
| Advanced Examples | en | zh |
# Clone with submodules
git clone --recurse-submodules https://github.com/weianweigan/fidget-csharp.git
cd fidget-csharp
# Build and test
./build.shOr step by step:
# 1. Build the Rust native library
cd fidget-capi
cargo build --release
# 2. Build and test the C# project
cd ..
dotnet test Fidget.slnx -c ReleaseThis project is licensed under the Mozilla Public License 2.0, matching the upstream Fidget project.