FluidMesh

FluidMesh adds mesh-aware aerodynamic and hydrodynamic forces to Rigidbody objects.

It computes drag, lift, and torque from mesh surface orientation, relative motion, and fluid properties. Optional WindZone influence and optional debug visualization are included.

Requirements and Setup

• Unity 6000.0 (Unity 6) or newer.
• Required UPM dependencies:
• com.unity.burst
• com.unity.collections
• com.unity.mathematics
• Add FluidMesh to a GameObject with:
• a Rigidbody (required for force application)
• a MeshFilter with a mesh (same object or child)

Key Features

• Mesh-based drag/lift/torque integration with Rigidbody.
• Optional WindZone integration.
• Optional visualization modes: force vectors, pressure heatmap, full CFD-style debug view, and trail rendering.
• Burst + C# Job System runtime implementation.
• Custom inspector with quick setup and advanced foldouts.
• Fluid volume overrides (FluidVolume) for localized fluid properties.

Important Notes and Limitations

• Visualization features are for debugging and should typically be disabled in production scenes.
• CFD visualization is an approximation for diagnostics, not a full CFD solver.

Included Content

• Runtime scripts (Assets/FluidMesh/Scripts)
• Editor scripts (Assets/FluidMesh/Editor)
• Demo scene (Assets/FluidMesh/Scenes/Demo.unity)
• Documentation (Assets/FluidMesh/Documentation)
• Shader used for debug rendering (Assets/FluidMesh/Shaders)