Download FluXY 2.5D fluid simulator Free Unity.
FluXY simulates 2D fluids that look 3D, using your GPU. Can be used to simulate fire, smoke, paint, water, trails, and a variety of VFX.
FluXY is a GPU, grid-based, 2.5D fluid simulator. It’s lightweight, fast, robust, and easy to use.
Here you can find the manual and API docs.
❗ Now includes four new URP sample scenes:
Water pond
Toxic pond
Mud rapids
Wall paint
Also includes transparent and opaque fluid ShaderGraph shaders! You can use them on your project right out of the box, or as inspiration for your own simulation-driven shaders.
?Expand 2D fluids into the 3D realm.
FluXY fluids live in containers. A container can either be a custom mesh or a flat rectangular area. Containers can face the camera, and objects in the scene can splat density and velocity data onto containers. All 3D data coming from the outside world such as forces, velocities, is projected to 2D. This gives the impression of a full 3D simulation, but orders of magnitude cheaper.
?Turbulence, pressure, buoyancy, surface tension, external forces…
Take full control of the simulation: make swirly fluid by increasing turbulence, make it expand by reducing pressure, rise to the sky by increasing buoyancy, use adhesion and surface tension to make dripping paint, let it be affected by wind…
?Inertial effects
Fluids can inherit the movement of their container. Put a torch in a character’s hand, and the flames will be affected by running, jumping, waving and any other movement. You have full control over how much acceleration/velocity is transferred to the fluid.
?Simulate fire, smoke, ink, water, paint, and other VFX.
Make your players traverse oily water, unleash magic spells, add smoke to destructible/crumbling objects, and more.
?Dynamic Level of Detail (LOD)
Integrated with Unity’s LOD components, distant simulations are performed at lower-resolution. Transition between levels of detail is smooth as butter.
?Fast separable pressure solver
Calculating pressure usually is the most expensive part of fluid simulation, as the same basic math operation has to be repeated many times per frame. FluXY offers you a fast, separable pressure solver that achieves results comparable to traditional methods in a fraction of time. And, you can still choose to use the traditional way if you wish.
