FluidNinja LIVE 1.2 - User defined line-tracing source
Channel: Andras Ketzer
Date: 24/03/2021

FluidNinja LIVE is real-time, responsive fluid simulation for Unreal. In this video we are demonstrating the advantages of using a custom line tracing source.

NinjaLive uses line tracing to project 3D world space collision data to the 2D sim space. By default, the trace line starts from the CAMERA and targets overlapping objects. Using the new feature, we could define a custom line tracing source.
Advantages: (1) no visual artefacts when looking at planar surfaces from low angle ("FPS view"). (2) detaching simulation container and simulation output - running the sim in the background while the user and the camera is somewhere else. (3) no impact doubling when running the simulation on hollow meshes (eg. a sphere) and viewing "from the other side", (4) no visual artefacts in VR when users rapidly change point of view


Marketplace: https://www.unrealengine.com/marketplace/fluidninja-live
Twitter: https://twitter.com/FluidNinjaLIVE

FluidNinja LIVE Playlist
https://www.youtube.com/playlist?list=PLVCUepYV6TvOrOfQVLMCxl_JoU_cIkK8P

For baking fluids, see FluidNinja VFX Tools: 
https://unrealengine.com/marketplace/fluidninja-vfx-tools

FluidNinja VFX Tools Playlist
https://www.youtube.com/playlist?list=PLVCUepYV6TvPnVELcyGoSDhpoLO7PyT6_