InfiniRIVER - Fluid based water simulator

InfiniRIVER is the new Fluid based water simulator for Unity by ARTnGAME.

The system can emulate the interaction of water with scene objects in real time using a fluid solver and do so in a global or local way for versatility and cover of all use cases.

InfiniRIVER is in its first release and will be in Beta for some time until all features are fully realized. The base fluid system is production ready and more work on usability and control of the effect will be added in the various Beta stages for more options.

The system is mainly focused on desktop, mobile use is TBD and will be added to the features during the Beta, with details on which modes may be used on mobile. Also the system has not been tested in VR, consoles and WebGL.

Technical details

Features (All pipelines):

- Fluid based water simulation for detailed interaction of scene objects with water

- River mesh generator

- FFT based water and waves shader

- World space and local space choice for versatile water placement and interaction modes

- Real time generated Caustics (Standard Pipeline - URP)

- Advanced water shader with refraction, cubemap reflection, Sub Surface Scattering

- Dynamic Water ripples and trails simulation

- Multiple sample demos of water - lava simulation

- Fluid based driven 3D particle module

- Fluid and interactive water enabled ground materials (Standard Pipeline)

Bonus features:

- Parallax shader (Standard Pipeline)

- Triplanar shader for rocks (Standard Pipeline)

- Randomized Stone generator

Roadmap (Some of the features are TBD):

- Adapt HDRP Decal shader to have better control of the projected caustic texture

- Control and create water ripples - caustics based on scene objects position - speed, besides mouse motion

- Convert bonus parallax sample shader and parallax with fluid shader to URP-HDRP (TBD)

- Add Delaunay based tessellation to the river mesh generator

- Add river branching and Terrain river curving

- Add more options in the river mesh maker

- Make easier to adapt the fluid simulation water flow direction

- Add underwater rendering (TBD)

- Add slope based component for automatic waterfall creation

- Add flow component using flow maps, finalize the flow map creator module & adapt to water shader

- Add real time reflections to water shader